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axa2CheY4MuhEgm1 | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | The major product obtained in the following reaction is :<br/><br/>
<img src="data:image/png;base64,UklGRsQLAABXRUJQVlA4ILgLAAAQtgCdASoAA/4BP4HA3mU2Mi8nIpUIosAwCWlu8p8d6cHCN+fb6d3O7GC4D3W/xnhQebnDa75//5XWb/6iiKnxPifE+J8T4nxPifE+J8T4nxPifE+J8T4nxPifE9CiDU7OgF+wLnrZjDGGMMYYwxhjDGGMMYYwxhjDGE23DwX1KcAIdbgZjDGGMMYYwxhjDGGM... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l7ynhd1q/54f7fc60-8130-477d-86e9-6feab9f3d98e/9c7ed6e0-3289-11ed-8893-19b23ee4c66d/file-1l7ynhd1r.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l7ynhd1q/54f7fc60-8130-477d-86e9-6feab9f3d98e/9c7... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265102/exam_images/thswk1uyhhe6aflyi3gr.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2017 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 204 English Explanation"> | mcq | jee-main-2017-offline | 251 |
pgDOs18j4rEFYpRiFl1ta | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | The major product of the following reaction is :
<br/><br/><img src="data:image/png;base64,UklGRoAaAABXRUJQVlA4IHQaAABQhwCdASoAA8IAPm0ylkikIqIhIfDquIANiWlu7mGL+PAbRutmlQeLf7L2u/5T8n/7Z5Gfn/8l+W/sQ5X7V/5R93fzX9x8+v9z4O/JHUI/HP5h/ivzR/tfDHAB/O/6X/sv8B/jP2n9KP6A9VPsl7AHBJeb+wJ/O/7z6tn9n/+PLd9W+wd+uH/L/w/aF/e72pyCiuGG3V0f... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l8g5ay95/c6053a2b-bbfb-49b0-8545-b874416a2b95/a193cd90-3c28-11ed-8acd-3bfc6080b9d7/file-1l8g5ay96.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l8g5ay95/c6053a2b-bbfb-49b0-8545-b874416a2b95/a19... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8g5bh9q/171057ee-c05e-4030-a328-59de3dd3d651/b04454e0-3c28-11ed-8acd-3bfc6080b9d7/file-1l8g5bh9r.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8g5bh9q/171057ee-c05e-4030-a328-59de3dd3d651/b04454e0-3c28-11ed-8acd-3bfc6080b9d7/fi... | mcq | jee-main-2018-online-16th-april-morning-slot | 252 |
sypOY2SwJn5aBYaZ3PTuH | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | The major product of the following reaction is –
<br/><br/><img src="data:image/png;base64,UklGRqgRAABXRUJQVlA4IJwRAABwrQCdASqhAskBP4HA2WU2ML+nIlFJa/AwCWlu/HyY+S9HZ1+fqP/kPCL/M7RhfH+c3UHYnwAvWe7egA/NPPOmHfgGkbhoDzv/z5Qv4f/yfv/xYRSFRd40qegeM0oKegeM0oKegeM0oJwFI5HI5HI5HI5MqYzGYzGYzGYzGYzGY8Hi2gY///lCS+LbAUjkVDiVvfrTM+4U... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266278/exam_images/j1iyy7lnuoq6f1aenout.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263777/exam_images/ravlgqbexejbrczdh3ww.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264868/exam_images/moh8v4dfns31dsu54imr.webp"><source media="(max-wid... | mcq | jee-main-2019-online-12th-january-morning-slot | 253 |
9zA5MqQEK36Q5vtUAfjgy2xukg3ed3ul | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | The correct match between Item-I (starting
material) and Item-II (reagent) for the
preparation of benzaldehyde is :
<br/><br/><style type="text/css">
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overflow:h... | [{"identifier": "A", "content": "(I) - (R), (II) - (P) and (III) - (Q)"}, {"identifier": "B", "content": "(I) - (P), (II) - (Q) and (III) - (R)"}, {"identifier": "C", "content": "(I) - (Q), (II) - (R) and (III) - (P)"}, {"identifier": "D", "content": "(I) - (R), (II) - (Q) and (III) - (P)"}] | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265983/exam_images/tnxetxym5lapbou036bs.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265165/exam_images/d74cwil8uicrreg1dho5.webp"><source media="(max-wid... | mcq | jee-main-2020-online-6th-september-evening-slot | 254 |
fuctW6ydtkJWkjVJSe1kls809rh | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | Which one of the following reactions will not form acetaldehyde? | [{"identifier": "A", "content": "$$C{H_3}C{H_2}OH\\mathrel{\\mathop{\\kern0pt\\longrightarrow}\n\\limits_{573K}^{Cu}} $$"}, {"identifier": "B", "content": "$$C{H_3}C{H_2}OH\\buildrel {Cr{O_3} - {H_2}S{O_4}} \\over\n \\longrightarrow $$"}, {"identifier": "C", "content": "$$C{H_2} = C{H_2} + {O_2}\\mathrel{\\mathop{\\ker... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263822/exam_images/zt6na7p1ou9eucpeqigr.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 130 Engli... | mcq | jee-main-2021-online-25th-february-morning-slot | 255 |
H9iLe4hN4Na9MbnjaR1kltbsa7r | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | The major product of the following reaction is :<br/><br/>
<img src="data:image/png;base64,UklGRkAIAABXRUJQVlA4IDQIAACwLgCdASpUATQAPm0ylkekIyIhJpOagIANiWlEdwNo2/h34q+Cf9k/J7rnPL3tV6MTM/9+/pP9b9Gv6r9l/oD7p9QL1D/mf51+JHpk/SD+S99fS/9M/YC9aPlH+A/pf8u/5n969En+y/oHqP9Gv9p/NvVA/xP8o81X9APIw7s/Un4Bf5z/PP9l/JP7X+pvwP/1v8p/sf/d/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265570/exam_images/bkbrl9feqjimz8rww8bh.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 25th February Evening Shift Chemistry - Aldehydes, Ketones... | ["D"] | null | <picture><source media="(max-width: 1179px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266614/exam_images/f4eli1e0zveuvjkeaoc1.webp"><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264969/exam_images/vszs6cz49pliuslmn2yu.webp"><source media="(max-wi... | mcq | jee-main-2021-online-25th-february-evening-slot | 256 |
1l6e1me7d | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | <p>Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6eqvgvz/574eaca9-041c-4f0a-baf7-1b2ed9253f19/fbcf45e0-13ca-11ed-b12e-0be2f600acf7/file-1l6eqvgw0.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6eqvgvz/574eaca9-041c-4f0a-baf7-1b2ed9253f19/fbc... | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lc5noibd/e33dc574-704e-47fa-82e8-5fd7cec889d4/bd4a4a90-8594-11ed-a4e1-239777dab634/file-1lc5noibe.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lc5noibd/e33dc574-704e-47fa-82e8-5fd7cec889d4/bd4a4a90-8594-11ed-a4e1-239777dab634... | mcq | jee-main-2022-online-25th-july-morning-shift | 257 |
1l6kq6oye | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | <p>Match List - I with List - II.</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
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overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:sol... | [{"identifier": "A", "content": "$$(\\mathrm{A})-(\\mathrm{IV}),(\\mathrm{B})-(\\mathrm{III}),(\\mathrm{C})-(\\mathrm{II}),(\\mathrm{D})-(\\mathrm{I})$$"}, {"identifier": "B", "content": "$$(\\mathrm{A})-(\\mathrm{I}),(\\mathrm{B})-(\\mathrm{II}),(\\mathrm{C})-(\\mathrm{III}),(\\mathrm{D})-(\\mathrm{IV})$$"}, {"identif... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7oivoen/35e99958-b680-4c44-a522-8bf350668b64/c6756500-2cf7-11ed-a627-29822045a51b/file-1l7oivoeo.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7oivoen/35e99958-b680-4c44-a522-8bf350668b64/c6756500-2cf7-11ed-a627-29822045a51b/fi... | mcq | jee-main-2022-online-27th-july-evening-shift | 258 |
1ldr3iopu | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | <p>What is the correct order of acidity of the protons marked $$\mathrm{A}-\mathrm{D}$$ in the given compounds ?</p>
<p><img src="data:image/png;base64,UklGRlwOAABXRUJQVlA4IFAOAABQ4gCdASoAA4gCP4HA2Wa2LyynoTJo4sAwCWlu4XHOdxnZ1+fsf+s/svuP2LTV3n17K/yf92/ebTKdn8wvz76btPr+A/n///v/grzIRWBa/ICqi7ZkIrAtfkBVRdsyEVeNludsxg5GFn3W... | [{"identifier": "A", "content": "$$\\mathrm{H}_{\\mathrm{D}}>\\mathrm{H}_{\\mathrm{C}}>\\mathrm{H}_{\\mathrm{B}}>\\mathrm{H}_{\\mathrm{A}}$$"}, {"identifier": "B", "content": "$$\\mathrm{H}_{\\mathrm{C}}>\\mathrm{H}_{\\mathrm{A}}>\\mathrm{H}_{\\mathrm{D}}>\\mathrm{H}_{\\mathrm{B}}$$"}, {"identifier": "C", "content": "$... | ["D"] | null | <p>Acidity of an acid depends upon the stability of it's
conjugate base.</p>
<p>H<sub>C</sub> > H<sub>D</sub> > H<sub>A</sub> > H<sub>B</sub></p>
<p>H<sub>C</sub> is hydrogen of carboxylic acid.</p>
<p>H<sub>D</sub> removal will lead to stable carbanion.</p> | mcq | jee-main-2023-online-30th-january-morning-shift | 259 |
1lsg7vwub | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | <p>Salicylaldehyde is synthesized from phenol, when reacted with</p> | [{"identifier": "A", "content": "$$\\mathrm{HCCl}_3, \\mathrm{NaOH}$$\n"}, {"identifier": "B", "content": "$$\\mathrm{CO}_2, \\mathrm{NaOH}$$"}, {"identifier": "C", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lshjqq70/18049711-83de-492a-a25b-40725a4e769b/345565c0-c8e2-11ee-8501-b... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lspv7hlw/f9d25667-b217-4e88-8082-d55d25008866/5012a150-cd75-11ee-9be1-85ca54b9efcb/file-6y3zli1lspv7hlx.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lspv7hlw/f9d25667-b217-4e88-8082-d55d25008866/5012a150-cd75-11ee-9b... | mcq | jee-main-2024-online-30th-january-evening-shift | 260 |
tdYf5JdeW3TWpUa1 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular
mass of 44 u. The alkene is | [{"identifier": "A", "content": "propene "}, {"identifier": "B", "content": "1\u2013butene"}, {"identifier": "C", "content": "2\u2013butene"}, {"identifier": "D", "content": "ethene"}] | ["C"] | null | The given molecular formula suggests that the aldehyde formed will be acetaldehyde hence the alkene will be
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265392/exam_images/bmw8wjrlahgbbofd9aak.webp" loading="lazy" alt="AIEEE 2010 Chemistry - Aldehydes, Ketones and Car... | mcq | aieee-2010 | 262 |
fjeiTMJaUvnjveA4 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Which compound would give $$5$$ - keto - $$2$$ - methylhexanal upon ozonolysis? | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l91fwa31/8c1bec13-aade-4967-af1b-208e9387c046/83a31bd0-47de-11ed-9a49-57ec402e0bd4/file-1l91fwa32.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l91fwa31/8c1bec13-aade-4967-af1b-208e9387c046/83a... | ["D"] | null | When $$1,3$$-dimethylcyclopentene is heated with ozone and then with zinc and acetic acid, oxidative cleavage leads to keto - aldehyde.
<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l91fye5o/809b7e5c-4d9b-4c61-a5b1-7e093b9ebbad/be66e6c0-47de-11ed-9a49-57ec402e0bd4/file-1l91fye5p.png?format=p... | mcq | jee-main-2015-offline | 263 |
wQjUAs4eadccm7sPqAwdU | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | The major product B formed in the following reaction sequence is :
<br/><br/><img src="data:image/png;base64,UklGRsoWAABXRUJQVlA4IL4WAACweQCdASoAA7QAPm00lkkkIqKhIfHqIIANiWlu/Eb5VOtQx/08/rfbR/mfx+8Tv0f9//Lf+7e25/J+GeKJ8k+3n5v+2/u57H97/ya1CPyT+Yf4D8zP7j6guxtAF+W/07/a/2bx9P9X0X8QDgkvU/1y+AX+jf4z9l/dq/tP/n5gPqL9rPgN/oP9w/... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l8g4wfir/1e84bf48-3d6e-41ee-bc83-9bd230b776ad/0dc74e30-3c27-11ed-8acd-3bfc6080b9d7/file-1l8g4wfis.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l8g4wfir/1e84bf48-3d6e-41ee-bc83-9bd230b776ad/0dc... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8g50era/f2f43de8-bbc9-4448-bc6d-84537941b6cc/7c6cf560-3c27-11ed-8acd-3bfc6080b9d7/file-1l8g50erb.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8g50era/f2f43de8-bbc9-4448-bc6d-84537941b6cc/7c6cf560-3c27-11ed-8acd-3bfc6080b9d7/fi... | mcq | jee-main-2018-online-16th-april-morning-slot | 265 |
POTcyn4PvwXDwMlEXA3rsa0w2w9jwv9w1qj | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Major products of the following reaction are :
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266408/exam_images/zm1jeefwc6ut7kjsspqs.webp"/><img src="data:image/png;base64,UklGRq4RAABXRUJQVlA4IKIRAAAQcQCdASqoAskAPm02mEkkIyKhIZFJYIANiWlu8p91AOHrcy/bvD38R/F3v9/... | [{"identifier": "A", "content": "<picture><source media=\"(max-width: 320px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265422/exam_images/tgqdxsvceuyvrcqkz2m8.webp\"><source media=\"(max-width: 500px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266832/exam_images/leml11kxlm... | ["C"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264562/exam_images/mqzusdeyagdkqd2y2ptv.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267377/exam_images/skmfog4yhljsrkwtdbzb.webp"><source media="(max-wid... | mcq | jee-main-2019-online-10th-april-morning-slot | 266 |
qGR0YViDBf55nYiAIp7k9k2k5h38lx6 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | The predominant intermolecular forces present in ethyl acetate, a liquid, are: | [{"identifier": "A", "content": "Dipole-dipole and hydrogen bonding"}, {"identifier": "B", "content": "hydrogen bonding and London dispersion"}, {"identifier": "C", "content": "London dispersion, dipole-dipole and hydrogen bonding"}, {"identifier": "D", "content": "London dispersion and dipole-dipole"}] | ["D"] | null | <p>Ethyl acetate (CH<sub>3</sub>COOCH<sub>2</sub>CH<sub>3</sub>) is an organic compound with a molecular structure that does not include any hydrogen atoms bonded directly to highly electronegative atoms like nitrogen, oxygen, or fluorine. Because of this, it cannot form hydrogen bonds. However, ethyl acetate does poss... | mcq | jee-main-2020-online-8th-january-morning-slot | 268 |
vvsvyQqIrMnVGtRpc87k9k2k5lkt992 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | In the following reaction A is :
<img src="data:image/png;base64,UklGRt4SAABXRUJQVlA4INISAACQYwCdASqSAesAPm00l0ikIqIhI7KZsIANiWlu/HyZbsADOzrp/QD+ifkj4Wf1T8f/P38T+eftX5I/2f2Xv4Dpgv4X+Keav6ufZv4z/e/9V/cv3m+/f6b/k/47+xvnX8Q/6T1BfVH+K/kX9a/4/9r9Q3+E/mHfAVN/yX8Q9gX3X+Zf4f+Jf0j/jf2zzrf4b+V/t1/UPgn6h/4T+AfAJ+pH+m/mf9s/8PxN/hP... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265824/exam_images/mocf9ykqpcfnbq8iparu.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones an... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267778/exam_images/qp74uvyslcezvretbtak.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 152 English ... | mcq | jee-main-2020-online-9th-january-evening-slot | 269 |
ZjcfHEUzV3Q33VCX4S1klrdqcd3 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Which of the following reagent is used for the following reaction ?<br/><br/>
$$
\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_3 \stackrel{?}{\longrightarrow} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO}
$$ | [{"identifier": "A", "content": "Molybdenum oxide"}, {"identifier": "B", "content": "Manganese acetate"}, {"identifier": "C", "content": "Copper at high temperature and pressure"}, {"identifier": "D", "content": "Potassium permanganate"}] | ["A"] | null | Molybdenum oxide (Mo<sub>2</sub>O<sub>3</sub> ) is used for oxidising alkanes to
aldehyde. It used to manufacture molybdenum metal, which serves
as an additive to steel and corrosive resistant alloys.
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kxhci1gp/478f2156-9f7d-414a-bcc7-e58c22e6ac31/2e1b3d90... | mcq | jee-main-2021-online-24th-february-morning-slot | 270 |
07HBNTV4FkzqfYabzM1kmj7v421 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Mesityl oxide is a common name of : | [{"identifier": "A", "content": "3-Methyl cyclohexane carbaldehyde"}, {"identifier": "B", "content": "4-Methyl pent-3-en-2-one"}, {"identifier": "C", "content": "2,4-Dimethyl pentan-3-one"}, {"identifier": "D", "content": "2-Methyl cyclohexanone"}] | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263428/exam_images/yga7xz57fu9lgwe0npdz.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 118 English ... | mcq | jee-main-2021-online-17th-march-morning-shift | 272 |
3bSRRUX23xRXcF3yAy1kmkjqk7u | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | The total number of C-C sigma bond/s in mesityl oxide (C<sub>6</sub>H<sub>10</sub>O) is __________. (Round off to the Nearest Integer). | [] | null | 5 | Structure of mesityl oxide is
<br><br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266672/exam_images/q8mouyv5roy3qcqghmsa.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Aldehydes, Ketones and ... | integer | jee-main-2021-online-17th-march-evening-shift | 273 |
1l57s98nj | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>'A' and 'B' respectively are:</p>
<p> <img src="data:image/png;base64,UklGRjYZAABXRUJQVlA4ICoZAACwgACdASoAA7AAPm02l0ikIyKhIvOqEIANiWlu/BV5jutQyf0z/s35FeDH+R8Ofxn5f/F/2z9yfW1/xPH70Z/yPQr+UfYb8//ZPx29qP9H4P/Hn+j9QX8y/l3+K/tO+s7b+4XqC+x/zr/o/1f/KeT5qKd8/+F/dPgA/lP9i/4Pqz/tPCu9C9gf+if5v9pPdf/vP/T/ofQH9T/+//WfAb/M/7p/3ex... | [{"identifier": "A", "content": "1-methylcyclohex-1,3-diene & cyclopentene."}, {"identifier": "B", "content": "Cyclohex-1,3-diene & cyclopentene"}, {"identifier": "C", "content": "1-methylcyclohex-1,4-diene & 1-methylcyclopent-1-ene"}, {"identifier": "D", "content": "Cyclohex-1,3-diene & 1-methylcyclopent-1-ene"}] | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l9xk94w2/840cd692-70b9-4abe-bc26-e856a79abea9/a2714530-5988-11ed-aea2-a1da9caa44e6/file-1l9xk94w3.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l9xk94w2/840cd692-70b9-4abe-bc26-e856a79abea9/a2714530-5988-11ed-aea2-a1da9caa44e6/fi... | mcq | jee-main-2022-online-27th-june-morning-shift | 274 |
1l57sbu2m | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>Which of the following reactions will yield benzaldehyde as a product?</p>
<p> <img src="data:image/png;base64,UklGRh4XAABXRUJQVlA4IBIXAACQewCdASoAA6MAPm00l0gkIyIhI/DKUIANiWlu/Fd43cV+mqvlTdA3+QP7F+Pvgr/i/y29EfG3679v/7r7fWOu03+Tfcj89/cvbd/N97fAI/Jf5v/jPtv4W0AX6N/UP+3/bPIA1O/C3sAd8t4b/4z/pewL+kPQtz4PWnsKfsD/zuwr6XpGTD... | [{"identifier": "A", "content": "(B) and (C)"}, {"identifier": "B", "content": "(C) and (D)"}, {"identifier": "C", "content": "(A) and (D)"}, {"identifier": "D", "content": "(A) and (C)"}] | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l9xkf1iq/3be979e9-c403-457a-88fb-0882ebe70ec4/46b17520-5989-11ed-8ffa-1d2a9dd91f8d/file-1l9xkf1ir.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l9xkf1iq/3be979e9-c403-457a-88fb-0882ebe70ec4/46b17520-5989-11ed-8ffa-1d2a9dd91f8d/fi... | mcq | jee-main-2022-online-27th-june-morning-shift | 275 |
1l58jpzbj | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?</p> | [{"identifier": "A", "content": "CrO<sub>3</sub>/acetic acid, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "B", "content": "CrO<sub>3</sub>/acetic anhydride, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "C", "content": "KMnO<sub>4</sub>/HCl, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "D", "content": "CO/HCl, anhydrou... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l9bly2tx/1e22714e-7969-43f2-8965-fccf0ae504cb/02ebf050-4d76-11ed-bdbc-253e8d1bba81/file-1l9bly2ty.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l9bly2tx/1e22714e-7969-43f2-8965-fccf0ae504cb/02ebf050-4d76-11ed-bdbc-253e8d1bba81/fi... | mcq | jee-main-2022-online-26th-june-evening-shift | 276 |
1l6f79n9l | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>$$C{H_3} - C{H_2} - CN\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Ether}^{C{H_3}MgBr}} A\buildrel {{H_3}{O^ + }} \over
\longrightarrow B\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{HCl}^{Zn - Hg}} C$$</p>
<p>The correct structure of C is</p> | [{"identifier": "A", "content": "$$C{H_3} - C{H_2} - C{H_2} - C{H_3}$$"}, {"identifier": "B", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6gkbghv/ff895651-2ea6-4501-9104-ff51ac490fc6/e9d93930-14ca-11ed-9a57-873b3ac09d5c/file-1l6gkbghw.png?format=png\" data-orsrc=\"https://app-content.... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lc8ku0hq/d457014d-1136-4568-8584-9b888b05bf29/f4f011e0-872f-11ed-806b-d74011098e63/file-1lc8ku0hr.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lc8ku0hq/d457014d-1136-4568-8584-9b888b05bf29/f4f011e0-872f-11ed-806b-d74011098e63/fi... | mcq | jee-main-2022-online-25th-july-evening-shift | 278 |
1l6kpxf8y | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>The structure of A in the given reaction is :</p>
<p><img src="data:image/png;base64,UklGRoQHAABXRUJQVlA4IHgHAABQYgCdASoAA+IAP4HA2mU2MK0nInK5MsAwCWlu4W8F7mNwvV5r/01rrZvdtMxWGXkpAqE/zJy7xh0WQt8llN2Ra8mkxtqKVTG2opVMbailUxtqKVTAI5rVY4rlNvY1US2vjNXgPKJzWz5neA8onNbPmd4Dyic1tbVE5pqGissmEwvKMTmtnzO8B5ROa2fM7wHlE5rZ8zvDWr5n... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6qqsxzv/b9d3d4b6-d37c-48f7-80d4-af082e1eae54/1d6455c0-1a64-11ed-9fca-fdfa82878a71/file-1l6qqsxzw.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6qqsxzv/b9d3d4b6-d37c-48f7-80d4-af082e1eae54/1d6... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7oiqn9u/2705bb52-bbbd-453a-9ad9-728ca6b98829/3a896320-2cf7-11ed-a627-29822045a51b/file-1l7oiqn9v.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7oiqn9u/2705bb52-bbbd-453a-9ad9-728ca6b98829/3a896320-2cf7-11ed-a627-29822045a51b/fi... | mcq | jee-main-2022-online-27th-july-evening-shift | 279 |
ldo8e24s | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Cyclohexylamine when treated with nitrous acid yields $(\mathrm{P})$. On treating $(\mathrm{P})$ with $\mathrm{PCC}$ results in (Q). When $(\mathrm{Q})$ is heated with dil. $\mathrm{NaOH}$ we get $(\mathrm{R})$ The final product (R) is : | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldpjrzb7/94a44708-fe4e-4b6e-92c2-99a85b7f5704/5db25d30-a451-11ed-a0a4-033f5e2bfec9/file-1ldpjrzb8.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldpjrzb7/94a44708-fe4e-4b6e-92c2-99a85b7f5704/5db... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lfq7ek2a/e08f19de-f0eb-4390-bac5-01b9faed810e/32419810-cc46-11ed-b01b-97614e626e94/file-1lfq7ek2b.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lfq7ek2a/e08f19de-f0eb-4390-bac5-01b9faed810e/32419810-cc46-11ed-b01b-97614e626e94/fi... | mcq | jee-main-2023-online-31st-january-evening-shift | 280 |
1ldr59h3z | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>A trisubstituted compound '$$\mathrm{A}$$', $$\mathrm{C}_{10} \mathrm{H}_{12} \mathrm{O}_{2}$$ gives neutral $$\mathrm{FeCl}_{3}$$ test positive. Treatment of compound 'A' with $$\mathrm{NaOH}$$ and $$\mathrm{CH}_{3} \mathrm{Br}$$ gives $$\mathrm{C}_{11} \mathrm{H}_{14} \mathrm{O}_{2}$$, with hydroiodic acid gives m... | [] | null | 4 | <p>$$\mathrm{A:C_{10}H_{12}O_2}$$</p>
<p>DU of A $$=\frac{22-12}{2}=5$$</p>
<p>1 DU is due to Ring (Benzene ring)</p>
<p>4 $$\pi$$-bonds will be there</p>
<p>(3 $$\pi$$-bonds in ring and 1 $$\pi$$-bond outside ring) as it decolorises alkaline KMnO$$_4$$.</p> | integer | jee-main-2023-online-30th-january-morning-shift | 281 |
lsbm0609 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Identify $A$ and $B$ in the following sequence of reaction
<br/><br/>
<img src="data:image/png;base64,UklGRhIIAABXRUJQVlA4IAYIAAAwZgCdASoAA+UAP4HA2WW2L6ynIXMZSsAwCWlu4XExG/Pn872o+oeHM3PhIm6U//g0j9Wfqz9Wfqz9Wfqz9Wfqz9Wfqz9WfoJWOV7zkuI9wxS8e4YpePcMUvHuGKXj3DFL6aXdxpcSTMZ+pRlK7rGiB1jY14276j9nVEemFb/NtM3JWapi5kKwHoZtDNoZtD... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsbnsow4/0694f837-a3e5-44f4-a87b-c0c7df0d1b1b/5b90dc40-c5a5-11ee-b548-b72f0a3d41f6/file-6y3zli1lsbnsow5.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lsbnsow4/0694f837-a3e5-44f4-a87... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsf741lj/d288d922-0654-41b6-b647-d28eef621dd6/3eaf0270-c797-11ee-95a1-79ed59577159/file-6y3zli1lsf741lk.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsf741lj/d288d922-0654-41b6-b647-d28eef621dd6/3eaf0270-c797-11ee-95... | mcq | jee-main-2024-online-1st-february-morning-shift | 282 |
jaoe38c1lsd8t5ji | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>Identify major product 'P' formed in the following reaction.</p>
<p><img src="data:image/png;base64,UklGRroWAABXRUJQVlA4IK4WAADwdgCdASoAA8kAPm02mEikIyKhIpaJgIANiWlu/CHZcetQyv0w/uf45+Cf+f8Sfxz6L/Iflb60eSvrc1L/kX3F/S+t79h77fh7/heoR+Q/zr/K/bdwvGsf670BfZv6t363+R6F/aj2APzI41r1n2A/6H/ifVl/uf2388v1h7Bn87/uX/M/w/ac9J8Xl+Umd... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lse4honu/13c9c96e-e455-4b6a-b90a-b781717f620b/35fb67a0-c700-11ee-be30-496b1c29fc5a/file-6y3zli1lse4honv.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lse4honu/13c9c96e-e455-4b6a-b90... | ["C"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lskml2vd/dbf64174-634f-411e-b2dd-bade6e6ca9a0/ac9b82a0-ca93-11ee-9a3e-d72ae7e965b7/file-6y3zli1lskml2ve.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lskml2vd/dbf64174-634f-411e-b2dd-bade6e6ca9a0/ac9b82a0-ca93-11ee... | mcq | jee-main-2024-online-31st-january-evening-shift | 283 |
jaoe38c1lsfmuccv | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>Identify the reagents used for the following conversion</p>
<p><img src="data:image/png;base64,UklGRgYLAABXRUJQVlA4IPoKAADQewCdASoAAwEBP4G+12W2L6snILD5usAwCWlu/HyYhZSHZ19/r73wtY2wDs7e02Wfb09KGej/CaaMiT/+g5SU4pKbPxjIgl8JpjF4rpXY35YxAxSU4pKcUlOKSmz8ZxCHlCkYDLdbjeF8XHOq8xPEkU0CcmvN5+LmmGRp8ntbBGVdqI9zAfBqzJN3l2lZWV/hMh... | [{"identifier": "A", "content": "$$\\mathrm{A}=\\mathrm{LiAlH}_4, \\mathrm{~B}=\\mathrm{NaOH}_{(\\mathrm{aq})}, \\mathrm{C}=\\mathrm{NH}_2-\\mathrm{NH}_2 / \\mathrm{KOH} \\text {, ethylene glycol }$$"}, {"identifier": "B", "content": "$$\\mathrm{A}=\\mathrm{DIBAL}-\\mathrm{H}, \\mathrm{B}=\\mathrm{NaOH}_{(\\mathrm{aq})... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsr80777/4aa1ed46-45ca-44b8-9c03-7184c36e4224/24b24c30-ce34-11ee-9412-cd4f9c6f2c40/file-6y3zli1lsr80778.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsr80777/4aa1ed46-45ca-44b8-9c03-7184c36e4224/24b24c30-ce34-11ee-94... | mcq | jee-main-2024-online-29th-january-evening-shift | 284 |
NlmQEZ2gcMEGlcIR | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <img src="data:image/png;base64,UklGRnAgAABXRUJQVlA4IGQgAADQjwCdASoAA8AAPm02l0ikIyIhIrMJuIANiWlu4XU17mNwsf46/qH43eB39b/In+wf+D1v/GfmP6//bP2d/tH/i/1Xxff4Xi36b/1Pof/Hvsf97/tP7bf3D94fu3/C/6H8hvyj9rfiN/S+oL+L/yP+6fkj/gf3O5B3Z/8z/yv7n7AXrX9F/y39r/wP/r/wnovf3H9+9Rfrv/pvuJ+wD+Q/0T/T/cJ8f/8XwvPuP+p/6v+G+AH+U/2//sf5H80fph/of/N/... | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265505/exam_images/kbtq6hhiagivlm14jguf.webp\" loading=\"lazy\" alt=\"AIEEE 2002 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 200 English Option 1\"> "}, {"identifier": "B", "conte... | ["B"] | null | Aldehydic group gets oxidised to carboxylic group. Double bond breaks and carbon gets oxidised to carboxylic group. | mcq | aieee-2002 | 286 |
Fj818kvbOR5hAYoU | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | $$p$$-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form, the compound $$B.$$ The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is : | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263663/exam_images/vtp0jzzxudvbeyoltsci.webp\" loading=\"lazy\" alt=\"AIEEE 2005 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 202 English Option 1\"> "}, {"identifier": "B", "conte... | ["C"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267622/exam_images/pjrdg4otcmufuvrvwnn7.webp" loading="lazy" alt="AIEEE 2005 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 202 English Explanation"> | mcq | aieee-2005 | 288 |
nC22YhKf7hcC3dB2 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The correct order of increasing acid strength of the compounds
<br/><br/><img src="data:image/png;base64,UklGRngPAABXRUJQVlA4IGwPAADwmACdASoAAz4BP4HA2GW2MCsnIhJ5MsAwCWlu/HyZq+tQ2/1s/zPcvkB2bPaHiKH/bgK//ws03k8r2tv/tD1tl5TL+ZfzL+ZfzL+ZfzL+ZfzL+ZfzCMQddrUJw8Rjq34fwwgXmvEmWqnjyocQ0OHX816EcA4Q0/TetWgnRbPsZ7ylao65U/hOhij1VS... | [{"identifier": "A", "content": "$$D < A < B < C$$ "}, {"identifier": "B", "content": "$$A < D < B < C$$ "}, {"identifier": "C", "content": "$$B < D < A < C$$ "}, {"identifier": "D", "content": "$$D < A < C < B$$ "}] | ["A"] | null | The correct order of increasing acid strength
<br><br>$$C{F_3}.COOH > MeOC{H_2}COOH > C{H_3}COOH > {(Me)_2}CH.COOH$$
<br><br>[<b>NOTE :</b> Electron withdrawing groups increase the acid strength and electron donating groups decrease the acid strength.] | mcq | aieee-2006 | 289 |
1GwY3CoPZQJCcxz1 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The compound formed as a result of oxidation of ethyl benzene by KMnO<sub>4 </sub> is : | [{"identifier": "A", "content": "benzophenone"}, {"identifier": "B", "content": "acetophenone"}, {"identifier": "C", "content": "benzoic acid"}, {"identifier": "D", "content": "benzyl alcohol "}] | ["C"] | null | When alkyl benzene are oxidised with alkaline $$KMn{O_4},$$ (strong oxidising agent) the entire alkyl group is oxidised to $$-COOH$$ group regardless of length of side chain.
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266100/exam_images/hbbsvkgp9opyjckrrusv.webp" lo... | mcq | aieee-2007 | 290 |
06w76bwLAiXnjlNr | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | A liquid was mixed with ethanol and a drop of concentrated H<sub>2</sub>SO<sub>4</sub> was added. A compound with a
fruity smell was formed. The liquid was : | [{"identifier": "A", "content": "CH<sub>3</sub>OH "}, {"identifier": "B", "content": "HCHO"}, {"identifier": "C", "content": "CH<sub>3</sub>CO CH<sub>3</sub>"}, {"identifier": "D", "content": "CH<sub>3</sub>COOH"}] | ["D"] | null | Fruity smell is due to ester formation which is formed between ethanol and acid.
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267248/exam_images/vr8lzm5and5cxbrmysuj.webp" loading="lazy" alt="AIEEE 2009 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 213 ... | mcq | aieee-2009 | 291 |
PhzccezPKqRZCJfO | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Sodium phenoxide when heated with $$C{O_2}$$ under pressure at $${125^ \circ }C$$ yields a product which on acetylation products $$C.$$
<br/><br/><img src="data:image/png;base64,UklGRrQYAABXRUJQVlA4IKgYAAAwfACdASoAA8EAPm00lkkkIqIhIlLZaIANiWlu/HA5bZfnZ12fqp/Xfxv8IP8D+Rfnr49/OftFyit4Xof/Jvt591/sf7l/4H9y/u5/Jf778cPOX4yagX... | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264411/exam_images/mwibxdytfpz2nxkume31.webp\" loading=\"lazy\" alt=\"JEE Main 2014 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 201 English Option 1\"> "}, {"identifier"... | ["A"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267789/exam_images/uccvuif777keqgayasmw.webp" loading="lazy" alt="JEE Main 2014 (Offline) Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 201 English Explanation"> | mcq | jee-main-2014-offline | 292 |
FSQO9UFhWauy0b6woHr5D | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The increasing order of the acidity of the following carboxylic acids is :
<br/><img src="data:image/png;base64,UklGRnIPAABXRUJQVlA4IGYPAAAwwwCdASoAA4MBP4G+2WS2MCynIvJpmsAwCWlu4WbCumNwu56R6pHlPq7sXf0XaUTxdqfw9+4/Wq3bG/3oI+f/SrqMfwOuJjyP//4EIqhYOBMXEGFv/o0g5vGBnGaoYuLEEBtE8deDPMQv3EAtq1gi2jTgCndzwDuYBcwzU2Y0mXADWkz+6iq... | [{"identifier": "A", "content": "I < III < II < IV"}, {"identifier": "B", "content": "IV < II < III < I"}, {"identifier": "C", "content": "II < IV < III < I"}, {"ident... | ["D"] | null | Electron withdrawing groups like $$-$$Cl, $$-$$CN, $$-$$NO<sub>2</sub> increases the acidity of substituted benzoic acids, whereas electron releasing groups like $$-$$CH<sub>3</sub>, $$-$$OH, $$-$$OCH<sub>3</sub>, $$-$$NH<sub>2</sub> decreases the acidity.
<br><br>Among $$-$$NO<sub>2</sub> and $$-$$Cl, $$-$$NO<sub>2</s... | mcq | jee-main-2018-online-15th-april-evening-slot | 293 |
jeTZQRV6Xm4agn9NCR5EG | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Which dicarboxylic acid in presence of a dehydrating agent is least reactive to give an anhydride? | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265409/exam_images/asv1sscjiy01gtqpch4o.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Aldehydes, Ketones... | ["A"] | null | Adipic acid CO<sub>2</sub>H $$-$$ (CH<sub>2</sub>)<sub>4</sub> $$-$$ CO<sub>2</sub>H $$\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{agent}^{dehydrating}} $$
<br>7 membered cyclic anhydride (Very unstable) | mcq | jee-main-2019-online-10th-january-morning-slot | 294 |
3FhyASumD2FvSr3ZT9WmB | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The decreasing order of ease of alkaline hydrolysis for the following esters in
<br/><br/><img src="data:image/png;base64,UklGRkoZAABXRUJQVlA4ID4ZAADQ9ACdASrzAQADP4G61mW2LiwnIpIpgsAwCWlu4Wz1YmNwvV5i/23cN/z+BO5oMT7wr0E9nf8J4gXn32Wn0/rCgDvZZxP07lr8byeg/8/B2ExF8fREXCkzov0RFwpM6L7Kux8NFsaBhSW5D7tQ4j798rL3ahxH375Wacge1UnhWo... | [{"identifier": "A", "content": "III > II > IV > I"}, {"identifier": "B", "content": "IV > II > III > I"}, {"identifier": "C", "content": "III > II > I > IV"}, {"identifier": "D", "content": "II > III > I > IV"}] | ["C"] | null | More is the electrophilic character of carbonyl group of ester faster is the alkaline hydrolysis.
<br><br> Since –I effect groups increase the electrophilic nature
of carboxyl carbon whereas +I effect groups decrease the
electrophilic nature of carboxyl carbon. Therefore, the correct
decreasing order is III > II >... | mcq | jee-main-2019-online-10th-january-morning-slot | 295 |
Fi0NSLEwv4UqRlhrLC9vz | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The major product of the following reaction is :
<img src="data:image/png;base64,UklGRuoSAABXRUJQVlA4IN4SAABwpwCdASrsAksBP4G812W2LqwnIVFJ6sAwCWlu474HZhryI4fMH+Y8Hn8zs8WDtoT2O8AJ13aBew2dHgX/GayzMh9JH/08lv7f/7P384mgsK0KYB3m/uHZn0KYB3m/uHZn0KYB3m/UM7OKFo68pnJ52cPU4Azs4epwBnZw9TgDO43qy9SitXIPfFd+gFUeJFeUhjt3nYJoVyZxXeaHr9V... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263895/exam_images/ezmkjisy2ejd6dacosyr.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones an... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264093/exam_images/delk4uv21axljmp09dzz.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263865/exam_images/dsgo5hnkmrkasd9nfj5w.webp"><img src="https://res.c... | mcq | jee-main-2019-online-9th-april-morning-slot | 296 |
oWjIID3Xb9YayXDx2OlT5 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The major product of the following reaction is:
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265650/exam_images/dv6hhjdlwivse0nkhlho.webp"/><img src="data:image/png;base64,UklGRuoLAABXRUJQVlA4IN4LAADQcwCdASqoAhcBP4HA2mU2MKynIrPY+sAwCWlu/DJZM4pnZ18/r1/hPCH/C/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264723/exam_images/gi6v9xz6nzp4bkosodcv.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Aldehydes, Ketones and ... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267316/exam_images/qm8mptbqa8ykdcagcszo.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263863/exam_images/whsc13kuovjymiaponin.webp"><source media="(max-wid... | mcq | jee-main-2019-online-9th-april-evening-slot | 297 |
kwz0GxknPIlib60yL93rsa0w2w9jx4ywsgc | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The major products of the following reaction are :
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263275/exam_images/uhc19veqyvppuf13naso.webp"/><img src="data:image/png;base64,UklGRjAPAABXRUJQVlA4ICQPAABQjwCdASqoAm8BP4HA22U2MK0nInTpAsAwCWluxtBXZeGsLv6u/6bt9yD... | [{"identifier": "A", "content": "<picture><source media=\"(max-width: 320px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266677/exam_images/jz1mrenp8ya6pry68dzx.webp\"><img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264169/exam_images/sgng5nzbxttgbeji9ssz.webp\" style=\"max-width... | ["D"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263684/exam_images/gaejggzsdtcbqqvxjv11.webp"><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264391/exam_images/fcai2rylmtzq3voz5pap.webp" style="max-width: 100%;height: auto;display: block;margi... | mcq | jee-main-2019-online-12th-april-morning-slot | 298 |
S6A7sBEKmpWziZ1aDBjgy2xukf9jphc2 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | [P] on treatment with Br<sub>2</sub>/FeBr<sub>3</sub> in CCl<sub>4</sub>
produced a single isomer C<sub>8</sub>H<sub>7</sub>O<sub>2</sub>Br while
heating [P] with sodalime gave toluene. The
compound [P] is | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263763/exam_images/rprfyvbdaszd3tpc5qbc.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Aldehydes, Ketones ... | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267005/exam_images/pcnrc6gxinehuyyb2jbm.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 142 Englis... | mcq | jee-main-2020-online-4th-september-morning-slot | 299 |
rLSq4IbILYbih6f7bdjgy2xukfja9mmt | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Which of the following derivatives of alcohols
is unstable in an aqueous base?<sub></sub> | [{"identifier": "A", "content": "RO\u2014CMe3"}, {"identifier": "B", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264507/exam_images/wimbyp04gpnsm7e6xskt.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 5th Septem... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267509/exam_images/x8byypp3qi6ju3qjagta.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 5th September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 Englis... | mcq | jee-main-2020-online-5th-september-morning-slot | 301 |
OSoxAYNkwTufwJ8RDXjgy2xukfi6yssv | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | In the following reaction sequence the major
products A and B are :
<img src="data:image/png;base64,UklGRl4PAABXRUJQVlA4IFIPAADQVwCdASr0AYsAPm02l0gkIyIhIrQKkIANiWlu/DZ4w+tQy/0R/j/5D9+n9v/s37Teg/4n80/Yfyn9Lz+i6Rb+g7er3v+I/2L/g/3L1v/y/8d/s362ejfuY/pv5X7CPpj+7/yX+hf87+1elf/G/xD+Rf4rxaq3fpf7AXa7/IfyH+sf9z/Kegb/afzP+p+0nwAf... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266709/exam_images/g3moozyzoxp0b6d99oy4.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 5th September Morning Slot Chemistry - Aldehydes, Ketones ... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265220/exam_images/kwcvjsa9b5kls1hdeuyn.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 5th September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 140 Englis... | mcq | jee-main-2020-online-5th-september-morning-slot | 302 |
4zEo0ZATAyymB5firmjgy2xukf2c0vub | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | An organic compound [A], molecular formula C<sub>10</sub>H<sub>20</sub>O<sub>2</sub>
was hydrolyzed with dilute sulphuric acid to
give a carboxylic acid [B] and an alcohol [C]. Oxidation of [C] with<br/> CrO<sub>3</sub>
- H<sub>2</sub>SO<sub>4</sub>
produced [B].
Which of the following strucutres are not possible fo... | [{"identifier": "A", "content": "(CH<sub>3</sub>)<sub>3</sub> \u2013 C \u2013 COOCH<sub>2</sub>C(CH<sub>3</sub>)<sub>3</sub>"}, {"identifier": "B", "content": "CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>COOCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>"}, {"identifier": "C", "content": "<img src=\"https://res.... | null | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267269/exam_images/k3nrmxnmxculhswg7xpj.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 147 Englis... | mcqm | jee-main-2020-online-3rd-september-morning-slot | 304 |
qJdK6tBENm7DYYOBru7k9k2k5hl4ps6 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | An unsaturated hydrocarbon X absorbs two
hydrogen molecules on catalytic hydrogenation and also gives following reaction :
<img src="data:image/png;base64,UklGRiQJAABXRUJQVlA4IBgJAABQPQCdASr0AVsAPm0ylkgkIqIhIzKK6IANiWlu4XHhG/Np8W/xD8hPBT+5dF/4u9ivUc/gOkQ+Fu6f9v/kf9Q/0v9g/aX79fnX+A8H/dVqF+ov71/G/6r/x/6pwtspPqEdwv8P/AP7f... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264390/exam_images/gfbkdg1c6pfczs4yrilj.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Aldehydes, Ketones an... | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264064/exam_images/ijmmdpnoty7g2rtcd3v0.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 154 English ... | mcq | jee-main-2020-online-8th-january-evening-slot | 306 |
IKQephxR5XovI3LTQx7k9k2k5dzri76 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | What is the product of following reaction ?
<img src="data:image/png;base64,UklGRjANAABXRUJQVlA4ICQNAACQRACdASpHAY8APm00l0gkIyIhJBQKmIANiWlu4W8hG/ON8H/y/tJ/qX5G+JL5h+0/k7/UfXj/pelw/jPJV9bvvv8o/n3/M/o/qp/jv4V4t+8j+Q9Qj01/h/5B/a/93/WvUj+gH9u76QAH0z/0n8r/r36y+ep/O/yD+q+xX1E9gD+dfzL/R/yb+sfrj8of0v9CP7R5xfhXsD/07+m/7b+Tf1L9... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266633/exam_images/dl5nmemcpcblqwaimwco.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Aldehydes, Ketones an... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267445/exam_images/nejempxjeytkdqzlao8j.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 157 English ... | mcq | jee-main-2020-online-7th-january-morning-slot | 308 |
Xq7Ozf7xq7zBduVTGI1kls8yopi | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Compound(s) which will liberate carbon dioxide with sodium bicarbonate solution is/are :<br/><br/><img src="data:image/png;base64,UklGRvgMAABXRUJQVlA4IOwMAABQSgCdASr0AXYAPm02l0gkIyIhJfNpkIANiWlu/HyYL8ANf0DwndfAH8y/InwY/pH5Qegv4p9I/f/zC9RmsB+Q+7M+X/jf7benv+j/ivjL7if4z7VfkL9P/4r+VfjH6XP8z/AO78q5+oHsBe3nyL/O/yH++frn52f8R/... | [{"identifier": "A", "content": "C only"}, {"identifier": "B", "content": "B only "}, {"identifier": "C", "content": "B and C only"}, {"identifier": "D", "content": "A and B only"}] | ["C"] | null | The reactions of given compound with sodium bicarbonate
solution are as follows
<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lkjmbix7/6e25429b-e9c1-4ca5-b369-794f16c82f05/1f3bfcc0-2ba4-11ee-b256-4beacb3197a0/file-6y3zli1lkjmbix8.png?format=png" data-orsrc="https://app-content.cdn.examg... | mcq | jee-main-2021-online-25th-february-morning-slot | 309 |
Kb8TTVzKg6NPNtP2kA1kltcfnrc | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The number of compound/s given below which contain/s -COOH group is __________. (Integer answer)<br/><br/>(A) Sulphanilic acid<br/><br/>(B) Picric acid<br/><br/>(C) Aspirin<br/><br/>(D) Ascorbic acid | [] | null | 1 | The structures of the given compounds are<br><br>
(A) Sulphanilic acid<br><br>
<img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266133/exam_images/n3gsaezku1mxp059k1um.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th February Eveni... | integer | jee-main-2021-online-25th-february-evening-slot | 310 |
tdOVFaxSAvnn60WEfP1kmiu0ncj | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <img src="data:image/png;base64,UklGRpoJAABXRUJQVlA4II4JAABQOwCdASp0AZQAPm02mUgkIyKhJJNZkIANiWlu4WsBG/ON8Hf0D8aPBL/CdFj5t9oMo/+S/mn9i/1nx6/Q/9p/FvEv4G/GfsBen/9H/PP5l5cP8Z/AP7X4FFTv0U9gLtn/w/5L/d/HI/p/6b6gfXT+8eiR/sv4x7F/1/9JP655qfhvsB/jP/Rfw7+Sfrl8An+J/Hf6t+vHtT+Xv+T/Hv718hn6j/7r+Tf1r9afk7/QD4B/uN7OH68j2sXoX1JBbJ9XFGi0... | [{"identifier": "A", "content": "LiAlH<sub>4</sub>"}, {"identifier": "B", "content": "NaBH<sub>4</sub>, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "C", "content": "HCl, Zn $$-$$ Hg"}, {"identifier": "D", "content": "Alkaline KMnO<sub>4</sub>, H<sup>+</sup>"}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267480/exam_images/tsac4kamrevzqlouapmf.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 16th March Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 119 English ... | mcq | jee-main-2021-online-16th-march-evening-shift | 311 |
bFJDwTvAXvT4cuM0BN1kmlmkayu | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <img src="data:image/png;base64,UklGRgoOAABXRUJQVlA4IP4NAACwUACdASrxAZ0APm02l0ikIqIhI1F58IANiWlu4XHOQBnZ11fo//G/yF8DP7n/Rf2M8R30f9X/Kj1FqvL487pX3L+Pf1j/f/1r1+/wn8R/aj+behvqZ9Q70v/iv41+3H9X/cr2o/ob/XvBfgA9gL2/+Nf5f+Rf3n/rf1/z+/0b+Afuh7geIB+qn+r/jntj/tP0W8nbwT9SfgF/Jn+d/kH9u/6v+P987/R/jv9z/83+U9r/zD/2/5B/kP18+xr9P/9T/Fv7... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266358/exam_images/q9i37erytfrezseosrje.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Aldehydes, Ketones an... | ["C"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266503/exam_images/mgxuxiogzq2lrcrgqzco.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263763/exam_images/izfrfd5c299gs0ipccy3.webp"><img src="https://res.c... | mcq | jee-main-2021-online-18th-march-morning-shift | 312 |
W1OjwkhCIbztxEtg5j1kmm1xqfy | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <img src="data:image/png;base64,UklGRiALAABXRUJQVlA4IBQLAAAQPwCdASqIAXsAPm00l0gkIyIhJbJKMIANiWlu4XBuABnZ13fob/FPAL+tf2L8dvP/xHeQ/azJqfdv5t/RP+N6j/px/WPI/gEem/7v9tnwfepf7z+P/4zvCqffoj7AXr18v/wP8p/qX/W/wHnkfzf8y9QPqj5sH+K/lf9C/3PMfdx/rd8AX5H/uv8q/tn+7/uXv6/2n8V/qv7F+1D5I/1/8e/wP/c/sf2Gfz7+cf6X+L/2b/0f33/////7X//p7ff2z9lH... | [] | null | 78 | Moles of Benzoic acid = $${{6.1} \over {122}}$$ = moles of m-bromobenzoic acid<br><br>So, weight of m-bromobenzoic acid = $${{6.1} \over {122}}$$ $$\times$$ 201 gm<br><br>= 10.05 gm<br><br>% yield = $${{Actual\,weight} \over {Theoretical\,weight}} \times 100$$<br><br>$$ = {{7.8} \over {10.05}} \times 100$$ = 77.61% | integer | jee-main-2021-online-18th-march-evening-shift | 314 |
1krrje03i | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <img src="data:image/png;base64,UklGRkgMAABXRUJQVlA4IDwMAADwcwCdASqYAjEBP4HA3GU2MS2nIhL5CsAwCWlu/GvyVP99dUff1H/2/cT/w8cabw7FZTaADvJJk337o44bU8V3wv3QOYfN/N6KFfAOSWTlcpt/j5wKJ7/HzfzeiauCi2IwLRErVXuBaa8/vYqRNT+Dj38zs/QQBbz7QIfWpgHeaVX5yWfoJZ+glnDqQWIeO0amieqv5phIhfK0VJ27rbSYoIbqaxBLP0Es/QSz9BLPFH0xQHEU89+cVTAH71WOJAdyKaSm... | [{"identifier": "A", "content": "(A) > (B) > (C) > (D)"}, {"identifier": "B", "content": "(D) > (A) > (B) > (C)"}, {"identifier": "C", "content": "(D) > (B) > (A) > (C)"}, {"identifier": "D", "content": "(A) > (C) > (B) > (D)"}] | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266222/exam_images/jprdhsnfyytrxpxhrbu0.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 20th July Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 108 English E... | mcq | jee-main-2021-online-20th-july-evening-shift | 315 |
1krut6bj9 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Which one of the following compounds will liberate CO<sub>2</sub>, when treated with NaHCO<sub>3</sub> ? | [{"identifier": "A", "content": "$${(C{H_3})_3}\\mathop {NH}\\limits^ \\oplus \\mathop {Cl}\\limits^\\Theta $$"}, {"identifier": "B", "content": "$${(C{H_3})_4}\\mathop N\\limits^ \\oplus \\mathop O\\limits^\\Theta H$$"}, {"identifier": "C", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266800/exam_images/tuxxdkxpblucgi2rzjm2.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266488/exam_images/g6mpokop4xm0wvbzbpqt.webp"><img src="https://res.c... | mcq | jee-main-2021-online-25th-july-morning-shift | 316 |
1kte9pt30 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The structure of the starting compound P used in the reaction given below is :<br/><br/><img src="data:image/png;base64,UklGRmgJAABXRUJQVlA4IFwJAAAwNwCdASq6AV4APm02l0gkIyIhI7G6UIANiWlu4MDkZ2ddX6Ef0T8cfAb+qflB1uXkn2h3PK+3+9/x/+g+f39+/kv9L8mfUb6gXpn/B/yT+pf5XwAO/QpF/ZvUC9lfkv90/kX9F/7P9685j+J/hnq13KH6l+2X+X/2HjT0BfyV/x/5... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265778/exam_images/epj4swtrmzp0dwm0kpsj.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 27th August Morning Shift Chemistry - Aldehydes, Ketones a... | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267796/exam_images/h5trgged6pshuy4iryzd.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 27th August Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 100 English... | mcq | jee-main-2021-online-27th-august-morning-shift | 319 |
1ktfrnvnw | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Given below are two statements :<br/><br/>Statement I : Ethyl pent-4-yn-oate on reaction with CH<sub>3</sub>MgBr gives a 3$$^\circ$$-alcohol.<br/><br/>Statement II : In this reaction one mole of ethyl pent-4-yn-oate utilizes two moles of CH<sub>3</sub>MgBr.<br/><br/>In the light of the above statements, choose the most... | [{"identifier": "A", "content": "Both Statement I and Statement II are false."}, {"identifier": "B", "content": "Statement I is false but Statement II is true."}, {"identifier": "C", "content": "Statement I is true but Statement II is false."}, {"identifier": "D", "content": "Both Statement I and Statement II are true.... | ["C"] | null | Statement I is true<br><br>But it consume 3 moles of CH<sub>3</sub>MgBr.<br><br>So Statement II is false.<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lkjltzp1/d7bc5152-d3d1-48af-9eb1-0252747747b1/37a01b40-2ba2-11ee-b256-4beacb3197a0/file-6y3zli1lkjltzp2.png?format=png" data-orsrc="http... | mcq | jee-main-2021-online-27th-august-evening-shift | 320 |
1ktfs3rzv | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Which one of the following reactions will not yield propionic acid? | [{"identifier": "A", "content": "CH<sub>3</sub>CH<sub>2</sub>COCH<sub>3</sub> + OI<sup>$$-$$</sup>/H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "B", "content": "CH<sub>3</sub>CH<sub>2</sub>CH<sub>3</sub> + KMnO<sub>4</sub>(Heat), OH<sup>$$-$$</sup>/H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "C", "content": "CH<sub>3<... | ["D"] | null | All gives propanoic acid as product but option (d) gives butanoic as product<br><br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264261/exam_images/umrm8mjbn9mw5yctxox5.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 27th August Ev... | mcq | jee-main-2021-online-27th-august-evening-shift | 321 |
1ktif6res | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The structure of product C, formed by the following sequence of reactions is :<br/><br/><img src="data:image/png;base64,UklGRkYOAABXRUJQVlA4IDoOAAAQUACdASqDAkgAPm02l0ekIyIhJFTK4IANiWlu/HyX2+tQz/0y/l/49+Cn9N/IH0L/D/oX7F+V/qvfyvRW/zf8t/m/sj8z/yH8k/sP+0/tnrP/k/5X/Sf9L/WvTP3JfynqBepv7z/Kv6l/yfO7/wP4z/Xu9BrR6AXtn8i/yf8i/tP/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267381/exam_images/cksxwegylolcxfvux6zt.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 31st August Morning Shift Chemistry - Aldehydes, Ketones a... | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263922/exam_images/tnlkfpp8e8eariwyvfkj.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 31st August Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 97 English ... | mcq | jee-main-2021-online-31st-august-morning-shift | 322 |
1ktn0aq3n | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | In the following sequence of reactions a compound A, (molecular formula C<sub>6</sub>H<sub>12</sub>O<sub>2</sub>) with a straight chain structure gives a C<sub>4</sub> carboxylic acid. A is :<br/><br/>
<img src="data:image/png;base64,UklGRk4RAABXRUJQVlA4IEIRAAAQUwCdASoAA1AAPm00lUikIqIhI/PrYIANiWlu+F6ogp29Zp8Y/27tX/u35S... | [{"identifier": "A", "content": "$$C{H_3} - C{H_2} - COO - C{H_2} - C{H_2} - C{H_3}$$"}, {"identifier": "B", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1kwlzmw72/92a3f97f-b448-4ae9-b178-a22289f68b48/9245a9e0-51cc-11ec-be54-a1f0ca310b48/file-1kwlzmw73.jpeg?format=png\" data-orsrc=\"http... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kwlzja8o/e42834ee-e05b-47ee-85bd-7f249bcc6d9e/2de28180-51cc-11ec-be54-a1f0ca310b48/file-1kwlzja8p.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1kwlzja8o/e42834ee-e05b-47ee-85bd-7f249bcc6d9e/2de28180-51cc-11ec-be54-a1f0ca310b48/fi... | mcq | jee-main-2021-online-1st-september-evening-shift | 323 |
1l549nouv | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Given below are two statements :</p>
<p>Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.</p>
<p>Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.</p>
<p>Choose the most appropriate option :</p> | [{"identifier": "A", "content": "Both Statement I and Statement II are correct."}, {"identifier": "B", "content": "Both Statement I and Statement II are incorrect."}, {"identifier": "C", "content": "Statement I is correct but Statement II is incorrect."}, {"identifier": "D", "content": "Statement I is incorrect but Sta... | ["A"] | null | Esterification of carboxylic acid with an alcohol is
nucleophilic acyl substitution and presence of
electron withdrawing group in the carboxylic acid
increases the rate of esterification reaction. | mcq | jee-main-2022-online-29th-june-morning-shift | 324 |
1l58e2lq8 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>(C<sub>7</sub>H<sub>5</sub>O<sub>2</sub>)<sub>2</sub> $$\buildrel {hv} \over
\longrightarrow $$ [X] $$\to$$ 2C<sub>6</sub>H<sub>5</sub> + 2CO<sub>2</sub></p>
<p>Consider the above reaction and identify the intermediate 'X'</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l5bsy7zf/6a4747eb-678c-4aa3-ae56-8afb0047ba26/894a5bb0-fe60-11ec-b169-b5046c590266/file-1l5bsy7zg.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l5bsy7zf/6a4747eb-678c-4aa3-ae56-8afb0047ba26/894... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l97q2m1c/262aaaec-6845-4889-8a3b-5d7ee3790b74/02e9d100-4b53-11ed-86ad-0bb7aa407afc/file-1l97q2m1d.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l97q2m1c/262aaaec-6845-4889-8a3b-5d7ee3790b74/02e9d100-4b53-11ed-86ad-0bb7aa407afc/fi... | mcq | jee-main-2022-online-26th-june-morning-shift | 325 |
1l58jsocw | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is</p>
<p><img src="data:image/png;base64,UklGRpIIAABXRUJQVlA4IIYIAACwfgCdASoAAxwBP4HA2mS2Ma0nIvGpQsAwCWlu8p8RUz3TRv9lf1d7DvlrrJ6/q9nzxdmvxAns76MAH3/9IOsH7m///wHP/+JU89PyxiBioKeen5YxAxUFPPT8oQLdy1SMaTMgi+JHSLfxMzcHIiAUjkcjkcjkcj... | [{"identifier": "A", "content": "LiAlH<sub>4</sub>"}, {"identifier": "B", "content": "KMnO<sub>4</sub>"}, {"identifier": "C", "content": "MnO"}, {"identifier": "D", "content": "NaBH<sub>4</sub>"}] | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l9bm5e6t/e065f13c-ccb3-4154-bc6c-4e38215f1ca5/ce5c0450-4d76-11ed-8605-07329b7ce2fb/file-1l9bm5e6u.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l9bm5e6t/e065f13c-ccb3-4154-bc6c-4e38215f1ca5/ce5c0450-4d76-11ed-8605-07329b7ce2fb/fi... | mcq | jee-main-2022-online-26th-june-evening-shift | 326 |
1l6nxbdip | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p><img src="data:image/png;base64,UklGRrYKAABXRUJQVlA4IKoKAAAQhACdASoAA+cAP4HA2GM2MSymI9N6IsAwCWlu/EbRCiN+e35+/29s7Z+dsfymng7oTfXo0mS3//6ufv8bU9Hv8rsjbUsY9+DX6GFaLT2EG6EhzodYqsTtpPu9p12ej3+V2RtqWMe/RMI5eUcvKOXlHLyjl3+YRkKvFSLAZLBW4wuPq9e4L6ccA0SYqJMVEmKiWN9DDnWE6pHguYhokxR6+I/7S/UF7RJgyR3OvxmnYexUV1gqsqIGx4Ov8iiizIVkn... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6s9l9xb/c389147a-5943-4112-b4f9-e698716ff89a/5e3c80f0-1b3a-11ed-91de-637bbeffe542/file-1l6s9l9xc.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6s9l9xb/c389147a-5943-4112-b4f9-e698716ff89a/5e3... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7vy7yy6/526f9f87-32a6-45ab-85ff-8d8171f382bb/41cb6ce0-310d-11ed-9c98-ad39d53b642b/file-1l7vy7yy7.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7vy7yy6/526f9f87-32a6-45ab-85ff-8d8171f382bb/41cb6ce0-310d-11ed-9c98-ad39d53b642b/fi... | mcq | jee-main-2022-online-28th-july-evening-shift | 329 |
1ldo1xt6c | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>In a reaction,</p>
<p><img src="data:image/png;base64,UklGRuoUAABXRUJQVlA4IN4UAABQbwCdASoAA6IAPm02mEgkIyKhJDWpoIANiWlu7ob0Xcje3LRkpS+Qv6p+R/m+/a/7D+TXoj5NvQXjdy++sv+V6JfyX7Gfn/7L6Kd6/AC/If5p/df6r+Kvqf7GLXf9v6AvsB9Z/YHxu/770L/i/UB78fwdqA36O9WX+28b/1N/8P9P8BX85/uH/O7GA5qjOAkFPE46QWycJxRotENi8W07blDCWdJubVxRotILIuHRlbP... | [{"identifier": "A", "content": "$$\\mathrm{CH}_{3} \\mathrm{OH} / \\mathrm{H}^{+}, \\Delta$$ and $$\\left(\\mathrm{CH}_{3} \\mathrm{CO}\\right)_{2} \\mathrm{O} / \\mathrm{H}^{+}$$"}, {"identifier": "B", "content": "$$\\left(\\mathrm{CH}_{3} \\mathrm{CO}\\right)_{2} \\mathrm{O} / \\mathrm{H}^{+}$$ and $$\\mathrm{CH}_{3... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1ldx5onfu/9371778c-5d10-47df-aad8-25b582904386/867c80a0-a880-11ed-99b3-79cb23978059/file-1ldx5onfv.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1ldx5onfu/9371778c-5d10-47df-aad8-25b582904386/867c80a0-a880-11ed-99b3-79cb23978059/fi... | mcq | jee-main-2023-online-1st-february-evening-shift | 330 |
ldqwl2ms | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.<br/><br/>
Assertion A: <img src="data:image/png;base64,UklGRpALAABXRUJQVlA4IIQLAACQ1QCdASoAA14CP4HA2mQ2MaympXT4EsAwCWlu8p8d/LDiN+fD6f/W/3N88/SP8D7CRs3/vYw3jD9/6Y9v/0563/ug///AM//4ZSAjyJKaVcbqx9iHTBHkSU0q43Vj7EOmCPIkppV... | [{"identifier": "A", "content": "${ \\text {Both } A \\text { and }} \\mathrm{R}$ are true and $\\mathrm{R}$ is the correct explanation of $\\mathrm{A}$"}, {"identifier": "B", "content": "$\\mathrm{A}$ is false but $\\mathrm{R}$ is true"}, {"identifier": "C", "content": "A is true but $\\mathrm{R}$ is false"}, {"identi... | ["B"] | null | The carbonyl group of aldehyde or ketone gets reduced to alkane on treatment with Zn-Hg with HCl and the reaction is named as Clemmensen reduction.
<br><br>But for hydroxyaldehyde or hydroxyketone, the alcoholic group gets converted to alkyl halide while carbonyl group gets reduced to alkane.
<br><br><img src="ht... | mcq | jee-main-2023-online-30th-january-evening-shift | 331 |
ldqxzobk | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Number of compounds from the following which will not dissolve in cold $\mathrm{NaHCO}_{3}$ and $\mathrm{NaOH}$ solutions but will dissolve in hot $\mathrm{NaOH}$ solution is ________.</p>
<p><img src="data:image/png;base64,UklGRhQPAABXRUJQVlA4IAgPAACQpQCdASoAA0EBP4HA2WQ2MKymo5L5gsAwCWlu8p9XgMn+QrRkpueb+9x/MbPLhnqRp... | [] | null | 3 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1leoi961l/e8fdc7f8-6af0-426f-a723-e1ad55c87d01/d81fdc90-b78a-11ed-8877-d5d81ac5ff88/file-1leoi961m.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1leoi961l/e8fdc7f8-6af0-426f-a723-e1ad55c87d01/d81fdc90-b78a-11ed-8877-d5d81ac5ff88... | integer | jee-main-2023-online-30th-january-evening-shift | 332 |
1ldukkpun | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Identify the product formed (A and E)</p>
<p><img src="data:image/png;base64,UklGRvoWAABXRUJQVlA4IO4WAAAQcwCdASoAA7oAPm02mEkkIyKhIhQJOIANiWlu/D65q+tQwv0i/of5D+7rwf/K+HPix9m+4Prp5Y+rjUy+TfcX9J/afa1+9f7fwl+NXZn8hH5X/M/9D9u/qq/2XbSWR/5PqC+vX0//X/dV6af+Z6GfWL2AP5//YP+Z60f8TxHvw3/A9gT+qf5/9mfdp/p//h/r/PX+kf5/9rvgJ/nX9s/7... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldvbkf6h/a6d0eef6-6f0b-442f-abdb-942fa2b91f5a/f6585c90-a77d-11ed-a5e3-ff739bca566a/file-1ldvbkf6i.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldvbkf6h/a6d0eef6-6f0b-442f-abdb-942fa2b91f5a/f65... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lebuo774/64fd019e-b02d-405b-b8f8-10372d397fb0/37429700-b095-11ed-b968-032108a3c0d6/file-1lebuo775.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lebuo774/64fd019e-b02d-405b-b8f8-10372d397fb0/37429700-b095-11ed-b968-032108a3c0d6/fi... | mcq | jee-main-2023-online-25th-january-morning-shift | 333 |
lgnzv62b | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <img src="data:image/png;base64,UklGRsYLAABXRUJQVlA4ILoLAAAQpwCdASoAA5YBP4HA22U2MK2nItPJAsAwCWlu/ELX2+tQ3P1o/3f9XyBhqDzudlv43/IfvZpsu2d//0zqnHuY///Aq//oggFMv5l/Mv5l/Mv5l/Mv5l/Mv5l/Mv4kz6tHXnjbUQE7qXH/5gc1s+sBwyWz6wHDJbN35ul7+ciZM734yToyUuGIIUKFBc6LHSmQqYk0SjWzmhjljVqOPm0kjF2jpO4yY+dyBzWz6wHDJbPrAcMlEg7LGmyl8JLRltlh/Tv5... | [{"identifier": "A", "content": " (i) $\\mathrm{KMnO}_{4}$, (ii) $\\mathrm{Br}_{2} / \\mathrm{Fe}$, (iii) $\\mathrm{Fe} / \\mathrm{H}^{+}$, (iv) $\\mathrm{Cl}_{2}$"}, {"identifier": "B", "content": "(i) $\\mathrm{Fe} / \\mathrm{H}^{+}$, (ii) $\\mathrm{HONO}$, (iii) $\\mathrm{CuCl}$, (iv) $\\mathrm{KMnO}_4$, (v) $\\math... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lgrlhyyp/2616ec70-dff8-432d-9d35-a84e028b443c/5107eb10-e0d6-11ed-ac7f-75b667b9d8cc/file-1lgrlhyyq.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lgrlhyyp/2616ec70-dff8-432d-9d35-a84e028b443c/5107eb10-e0d6-11ed-ac7f-75b667b9d8cc/fi... | mcq | jee-main-2023-online-15th-april-morning-shift | 334 |
1lgq41qhy | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>In the reaction given below</p>
<p><img src="data:image/png;base64,UklGRhAJAABXRUJQVlA4IAQJAADwbgCdASoAA98AP4HA2WQ2MKymo1Q5qsAwCWlu4WuxG/Ph9FWn9np3NzBAYkkpqZyFfpUIP4NGYpXnXSodTKhj6L4LqZUMfRfBdTKhj6LwaDPs9DrbzjgVKGCrlmVc8JvO2o5dH+ipd20hWhH+ipd20hWhH+ipd20hbS1iPTWgsB/q/vtruBHeO63rQe7aQrQj/RUu7aQrQj/RUu7aQrQj/Rgcf5/6yq... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgqz0hu8/9b0270b0-0a8b-4191-8a1b-3ece1838cb31/6234c500-e07e-11ed-baf9-87204e3a7c88/file-1lgqz0hu9.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgqz0hu8/9b0270b0-0a8b-4191-8a1b-3ece1838cb31/623... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lh1pj4od/afd35c56-75b8-498a-a9ce-b22972a9f75a/ec440700-e665-11ed-b7c9-957e12d0338a/file-1lh1pj4og.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lh1pj4od/afd35c56-75b8-498a-a9ce-b22972a9f75a/ec440700-e665-11ed-b7c9-957e12d0338a/fi... | mcq | jee-main-2023-online-13th-april-morning-shift | 335 |
1lgrk77e2 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p><img src="data:image/png;base64,UklGRo4VAABXRUJQVlA4IIIVAADwdgCdASoAA6kAPm0ylkikIqIhIrDKmIANiWlu4XShG/ON8of2f8b/CH/J/2v9ouwT9Qe2XJdiffI/tn+s/t/t2/nu9/5I6gX5H/P/81+af9x4XibP1Bfc77J/yfD31IMgDy77338b/3vYD/TnobZ8Hq72FP2C9Ob2BelMQ725Sy6rp2pgHZx7zEIChHZl1uDM/+ktrAMrb04sDJYZcOlA8zh0oHmcOlA8zh0oHmcOlA8tRv8TYbwoGZb56bBdgB2zK... | [{"identifier": "A", "content": "Butanal and acetaldehyde"}, {"identifier": "B", "content": "Butanoic acid and acetic acid"}, {"identifier": "C", "content": "Butanal and acetic acid"}, {"identifier": "D", "content": "Butanoic acid and acetaldehyde"}] | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lh1qpbyr/ce3ff788-de51-4baa-97e9-83baed8348f7/81e0f940-e66a-11ed-b7c9-957e12d0338a/file-1lh1qpbys.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lh1qpbyr/ce3ff788-de51-4baa-97e9-83baed8348f7/81e0f940-e66a-11ed-b7c9-957e12d0338a/fi... | mcq | jee-main-2023-online-12th-april-morning-shift | 336 |
1lgrl3wls | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The major product 'P' formed in the following sequence of reactions is</p>
<p><img src="data:image/png;base64,UklGRkQWAABXRUJQVlA4IDgWAAAwdQCdASoAA8QAPm02mEkkIqKhIjJZeIANiWlu4XPxG/N18o/2TtQ/z/5X+hfjG9oe4XJniZfKftt+n9e37N3p/KbUI/JP5p/ovEJ2K+1eYL7VfXv+j/fPGI/v/Q77T+wDwRfnnsDf0b+//s57sP9p/8P9v57v0r/SewT/Qf7n/zv772pPSN/... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgsdtows/4d81e732-458c-4732-9087-82264fdf69ea/169749c0-e145-11ed-a8e4-b7bc072b4abb/file-1lgsdtowt.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgsdtows/4d81e732-458c-4732-9087-82264fdf69ea/169... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lh1qmyh3/0d8b635b-2670-4977-ad9e-116d49dc29f7/3fd6b170-e66a-11ed-b7c9-957e12d0338a/file-1lh1qmyh4.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lh1qmyh3/0d8b635b-2670-4977-ad9e-116d49dc29f7/3fd6b170-e66a-11ed-b7c9-957e12d0338a/fi... | mcq | jee-main-2023-online-12th-april-morning-shift | 337 |
1lgsybj0x | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.</p>
<p>Assertion A : A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous generates chiral carbon atom.</p>
<p>Reason R : A molecule with 2 chiral ca... | [{"identifier": "A", "content": "Both A and R are true and R is the correct explanation of A"}, {"identifier": "B", "content": "Both A and R are true but R is NOT the correct explanation of A"}, {"identifier": "C", "content": "A is true but R is false"}, {"identifier": "D", "content": "A is false but R is true"}] | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1libm5ngg/24f28c50-e2c2-4a57-aafa-ce6edaa17551/c7edc000-ffa4-11ed-b6d4-23f7435f51f2/file-1libm5ngh.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1libm5ngg/24f28c50-e2c2-4a57-aafa-ce6edaa17551/c7edc000-ffa4-11ed-b6d4-23f7435f51f2/fi... | mcq | jee-main-2023-online-11th-april-evening-shift | 338 |
1lguz38q0 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p><img src="data:image/png;base64,UklGRiwWAABXRUJQVlA4ICAWAACwZwCdASoAA4AAPm02lkikIyIhIlVaYIANiWlu4XNBG/OZ8c/4vtR/tP5Led/4788/jPy59fT+38LvSP/F9DP5D9g/xn95/dj+7/OL9q/4Xg38kf8X1CPyz+b/7DxNdlftn+m9Aj2k+s/8fwqf7P0N+wP/M9wD+Yf13/o+s//E8G/8B/qfYB/ov+N9Wb+v/9P+i/NL21/oX+l/+X+h+An+b/3H/veu37Gv3k9nP93B6sapOh1pIKBI/YYztPU2ChegI... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgveto3i/88fcfebb-40d7-4b50-988d-f96bfdc08874/590a45e0-e2ef-11ed-b29f-636b60af9e14/file-1lgveto3j.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgveto3i/88fcfebb-40d7-4b50-988d-f96bfdc08874/590... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1liw3jwci/77bf9bfe-fd10-4f47-a4cf-091fb00cbb1b/7c4ee620-0ae8-11ee-90ad-4fcf9f0e5686/file-6y3zli1liw3jwcj.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1liw3jwci/77bf9bfe-fd10-4f47-a4cf-091fb00cbb1b/7c4ee620-0ae8-11ee-90... | mcq | jee-main-2023-online-11th-april-morning-shift | 339 |
1lgyg8q02 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The major product 'P' formed in the given reaction is</p>
<p><img src="data:image/png;base64,UklGRkAZAABXRUJQVlA4IDQZAACQfwCdASoAA8UAPm02l0ikIyIhI3TZoIANiWlu/ELZbY3HZ12fqx/Xvx08Hv7f+Vf9w9PfJ76d9yPXxxx+kfyX/C9D/5R9xfyv999rn8B/yvBn5Qf4XqEflP81/vn24ep//Zdqva/0BfXr6b/r/Cp1O/BnsAfmv7D/9bwdvPPYE/pX+Q9WX+w/+/+78+n1N/7f9h8B... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgznb86d/dfdcfd86-cf90-4777-83d5-06e905fa6a40/aceff550-e543-11ed-8d50-d941312069b0/file-1lgznb86e.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgznb86d/dfdcfd86-cf90-4777-83d5-06e905fa6a40/ace... | ["A"] | null | $\mathrm{KMnO}_4$ oxidises benzylic carbon containing atleast one $\alpha$-hydrogen atom to $-\mathrm{COOH}$.<br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1liyonklt/7a026fd9-d98c-4515-b165-1c1728f12352/937c5810-0c54-11ee-9386-675fa4f17251/file-6y3zli1liyonklu.png?format=png" data-orsrc=... | mcq | jee-main-2023-online-10th-april-morning-shift | 340 |
1lh03asmr | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The major product formed in the following reaction is:</p>
<p><img src="data:image/png;base64,UklGRgQZAABXRUJQVlA4IPgYAABQfQCdASoAA5kAPm00l0ekIyIhJhM6GIANiWlu4XHOHWv6B4TxvjP+7drH+i/vf7Zeh/4z9B/gPzF9fHIP2B6l/yb7l/sP7x7Wf3z/jeEfzB1CPyX+X/5T7ePVf2PAAPzb+sf9P+/+PF/teiH2M9gDgp/V/YH/VP7G+7V/ZeOv6w/a34Ef6B/g/+32B/3o9rcn76e... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lh1hvo3d/6916d51e-31e1-4336-a537-f3ef71b87264/fff07a90-e647-11ed-9b1f-cf98cc51cb3d/file-1lh1hvo3e.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lh1hvo3d/6916d51e-31e1-4336-a537-f3ef71b87264/fff... | ["D"] | null | $\mathrm{NaBH}_4$ (Sodium borohydride) is a weak reducing agent, it reduces aldehydes/ketones but not esters, it produces alcohols through reduction. ketones reduces to $2^{\circ}$ alcohol.<br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lj6833ab/08d832f7-a7ca-4000-8d21-ea73a6a3d0c9/0d0d6... | mcq | jee-main-2023-online-8th-april-morning-shift | 341 |
jaoe38c1lscrzydm | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The molecular formula of second homologue in the homologous series of mono carboxylic acids is</p> | [{"identifier": "A", "content": "$$\\mathrm{C}_2 \\mathrm{H}_4 \\mathrm{O}_2$$\n"}, {"identifier": "B", "content": "$$\\mathrm{C}_2 \\mathrm{H}_2 \\mathrm{O}_2$$\n"}, {"identifier": "C", "content": "$$\\mathrm{CH}_2 \\mathrm{O}$$\n"}, {"identifier": "D", "content": "$$\\mathrm{C}_3 \\mathrm{H}_6 \\mathrm{O}_2$$"}] | ["A"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lt1la4fb/dc1fd62d-8a7c-41e7-977d-3e058c2f64ae/e5d14f70-d3e7-11ee-999e-8967c8762139/file-1lt1la4fc.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lt1la4fb/dc1fd62d-8a7c-41e7-977d-3e058c2f64ae/e5d14f70-d3e7-11ee-999e-8967c8762139... | mcq | jee-main-2024-online-27th-january-evening-shift | 343 |
jaoe38c1lsfpmwq9 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The total number of 'Sigma' and 'Pi' bonds in 2-formylhex-4-enoic acid is _________.</p> | [] | null | 22 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsr7y52g/7483a1aa-3fd6-4363-8a2f-af537f448faa/eb6e6a80-ce33-11ee-9412-cd4f9c6f2c40/file-6y3zli1lsr7y52h.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsr7y52g/7483a1aa-3fd6-4363-8a2f-af537f448faa/eb6e6a80-ce33-11ee... | integer | jee-main-2024-online-29th-january-evening-shift | 344 |
lv5gt4uk | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Identify the product (P) in the following reaction:</p>
<p><img src="data:image/png;base64,UklGRvAUAABXRUJQVlA4IOQUAACQdQCdASoAA88APm02mUgkIyKhJDM5aIANiWlu+F8U/JFxgYGkpX6i/3b+j9xP+B/rPea+h/x35n8o+JZ8Z+0n7/+6+23+Y71+AR+Sf0r/W70WAD60+BDqU+FvYA8xP+Z4UH4j/d+wF/Sv8N6H+fV6v9hL9evTc9j/o5DgcOlQytjfLqG5Wxvl1DcrY3y6huVsb5dQ29... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lv5cas7a/e8fe1b6d-c6ea-4930-bcba-e4808f9fb631/5760be60-fd90-11ee-8734-99d466581eee/file-1lv5cas7b.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lv5cas7a/e8fe1b6d-c6ea-4930-bcba-e4808f9fb631/576... | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/jaoe38c1lw93bm34/551b3c2b-c739-496e-a863-7869f82a4811/9646e900-136c-11ef-ac66-753153db1bf0/file-jaoe38c1lw93bm35.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/jaoe38c1lw93bm34/551b3c2b-c739-496e-a863-7869f82a4811/9646e900-136c-1... | mcq | jee-main-2024-online-8th-april-morning-shift | 345 |
lv9s2sto | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Identify A and B in the given chemical reaction sequence :</p>
<p><img src="data:image/png;base64,UklGRtAIAABXRUJQVlA4IMQIAACwbgCdASoAA/cAP4G+2GU2L6ynIvE5WsAwCWlu4W/RG/PV89977t51h+EOpGnk7R/k6o1q7ekHJtee5fWEn5wXpTTRhYJUZBB4G2JwNsTgbYnA2xOBticDYxhqpJBGyKhGtmH0uJDTgkEgkEgkEgkEgkEgkEgkEgkEhf/DVSSCMsCIh0NIGLySKBJ+cGT84Mn... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lv9j2q09/dc278184-a262-4068-8fd3-73efe56dbe27/f9b5f190-ffdd-11ee-a65d-61c1e650eee9/file-1lv9j2q0a.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lv9j2q09/dc278184-a262-4068-8fd3-73efe56dbe27/f9b... | ["B"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwf4ieii/1495e3ec-e82c-43ef-8598-83c2e594df98/f01df5a0-16bd-11ef-bcfd-9b363cca8beb/file-1lwf4ieij.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwf4ieii/1495e3ec-e82c-43ef-8598-83c2e594df98/f01df5a0-16bd-11ef-bcfd-9b363cca8beb... | mcq | jee-main-2024-online-5th-april-evening-shift | 346 |
lv9s2sr1 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Consider the given chemical reaction :</p>
<p><img src="data:image/png;base64,UklGRh4UAABXRUJQVlA4IBIUAABQcgCdASoAA7cAPm0ylkkkIqIhIjDZ2IANiWlu8nS7xgp3njbI+T/6r2y/5b8pPQv8V+gfzn5b+tNjftQ/jv3j/K/4D22/xP/H8FfV76gX5P/IP8h/av3E/vnDBgC/O/6z/yv796xPyv/S9CfEA4Iv0f2Bv5t/hf2T9h7/28un1V7CX8//vv/e9d718+k8MqXxYtKUm7//n5WaVcFnfRd... | [{"identifier": "A", "content": "picric acid\n"}, {"identifier": "B", "content": "oxalic acid\n"}, {"identifier": "C", "content": "adipic acid\n"}, {"identifier": "D", "content": "acetic acid"}] | ["C"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwf3277b/5b1766c7-b0d2-436f-8660-b8bd65db9731/4464e070-16b8-11ef-91c0-eff662e0b03e/file-1lwf3277c.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwf3277b/5b1766c7-b0d2-436f-8660-b8bd65db9731/4464e070-16b8-11ef-91c0-eff662e0b03e... | mcq | jee-main-2024-online-5th-april-evening-shift | 347 |
lv9s2srl | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The product C in the following sequence of reactions has ________ $$\pi$$ bonds.</p>
<p><img src="data:image/png;base64,UklGRmYSAABXRUJQVlA4IFoSAACQXACdASoAA2wAPm0ylkikIqIhJLBagIANiWlu/D65N+tQyP1Z/tva3/k/yT6/71f7c8qiJN8k+3P5T+4e13+W7y/k7qC/k/8w/xv5h8GhrnmEe4X1X/i/3j/Bez/8L/0/Qv7E/7T3AfzB40X0j2Av5t/gvVt/r//d5evqf2C/1... | [] | null | 4 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwf826d2/f162048a-8593-4a58-b2b4-5e1cfa8ece8f/d1642c70-16cb-11ef-bd9d-7758ad9fe458/file-1lwf826d3.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwf826d2/f162048a-8593-4a58-b2b4-5e1cfa8ece8f/d1642c70-16cb-11ef-bd9d-7758ad9fe458... | integer | jee-main-2024-online-5th-april-evening-shift | 348 |
jlJFlPXAVOC4t0DeBojgy2xukevm16qw | chemistry | aldehydes-ketones-and-carboxylic-acids | reactions-involving-aldehydes | The increasing order of the following
compounds towards HCN addition is :
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265889/exam_images/bactsg6nae2a4xvcxrjc.webp"/><img src="data:image/png;base64,UklGRjQUAABXRUJQVlA4ICgUAABQpACdASqoAoQBP4G+12W2LywnIRF5ssAw... | [{"identifier": "A", "content": "(iii) < (iv) < (ii) < (i)"}, {"identifier": "B", "content": "(i) < (iii) < (iv) < (ii)"}, {"identifier": "C", "content": "(iii) < (i) < (iv) < (ii)"}, {"identifier": "D", "content": "(iii) < (iv) < (i) < (ii)"}] | ["C"] | null | In HCN, CN<sup>–</sup>
is acts as nucleophile, attack first that –CHO group which has maximum positive
charge. The magnitude of the (+ve) charge increases by –R and –I group. So reactivity order will
be
<br><picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v173426768... | mcq | jee-main-2020-online-2nd-september-morning-slot | 350 |
1l58e41ra | chemistry | aldehydes-ketones-and-carboxylic-acids | reactions-involving-aldehydes | <p>Which will have the highest enol content?</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l5bq3brn/c3ca679c-95c3-4a04-b6d3-a5d87b286c17/5bdf2a30-fe55-11ec-b169-b5046c590266/file-1l5bq3bro.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l5bq3brn/c3ca679c-95c3-4a04-b6d3-a5d87b286c17/5bd... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l97q8byp/70fd8fd1-a59b-45c7-a192-b6df38a7be1a/a1fca010-4b53-11ed-86ad-0bb7aa407afc/file-1l97q8byq.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l97q8byp/70fd8fd1-a59b-45c7-a192-b6df38a7be1a/a1fca010-4b53-11ed-86ad-0bb7aa407afc/fi... | mcq | jee-main-2022-online-26th-june-morning-shift | 351 |
1l5w687b6 | chemistry | aldehydes-ketones-and-carboxylic-acids | reactions-involving-aldehydes | <p>Choose the reaction which is not possible:</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l5wj6vvq/f07fd7f6-b140-452a-9d41-9454a1f4d1a2/d491e860-09c6-11ed-aacd-cd06ee4162a1/file-1l5wj6vvr.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l5wj6vvq/f07fd7f6-b140-452a-9d41-9454a1f4d1a2/d49... | ["D"] | null | Fehling reagent (aq. $\mathrm{CuSO}_{4}\,+$ alkaline Sodium potassium tartarate) can not oxidised aromatic aldehydes. | mcq | jee-main-2022-online-30th-june-morning-shift | 352 |
1l5w68z7w | chemistry | aldehydes-ketones-and-carboxylic-acids | reactions-involving-aldehydes | <p>Which among the following will be the major product of the given reaction?</p>
<p><img src="data:image/png;base64,UklGRjAIAABXRUJQVlA4ICQIAADwcQCdASoAA/cAP4HA22Q2MS2mo9II+sAwCWlu4WmDlmNwu55y/3j+2ExsSdP/k+uZ7s/xL6iK/wcbPnnFPgjG+GiJNhEmwiTYRJsIk2ESbCJNhEmuLRx47vokyCZLmGiJNhEmwiTYRJsIk2ESbCJNhEmP8dehGT0mfpON8zy/8QTkdFs... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l5wjdeg6/d5db43ad-ab0c-4a5a-aca0-27b8240c8e14/89c4a060-09c7-11ed-aacd-cd06ee4162a1/file-1l5wjdeg7.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l5wjdeg6/d5db43ad-ab0c-4a5a-aca0-27b8240c8e14/89c... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8jtfau6/ebe24db8-49d7-48dd-ab01-3e93dcb500bf/4f952be0-3e2d-11ed-a090-dfaa6ae67ea5/file-1l8jtfau7.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8jtfau6/ebe24db8-49d7-48dd-ab01-3e93dcb500bf/4f952be0-3e2d-11ed-a090-dfaa6ae67ea5/fi... | mcq | jee-main-2022-online-30th-june-morning-shift | 353 |
1l6rkp2ok | chemistry | aldehydes-ketones-and-carboxylic-acids | reactions-involving-aldehydes | <p>Correct structure of $$\gamma$$-methylcyclohexane carbaldehyde is</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6tbmals/3789529f-f3f3-4775-ab1f-c16191323133/157a7300-1bcf-11ed-bd9f-71db3a4811b2/file-1l6tbmalt.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6tbmals/3789529f-f3f3-4775-ab1f-c16191323133/157... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7npqq0r/5c0a4a2d-8e62-408c-bfd2-10191d005e00/d3e9f0b0-2c85-11ed-a521-1f85f535c206/file-1l7npqq0s.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7npqq0r/5c0a4a2d-8e62-408c-bfd2-10191d005e00/d3e9f0b0-2c85-11ed-a521-1f85f535c206/fi... | mcq | jee-main-2022-online-29th-july-evening-shift | 355 |
6sdOsvsLIgW18g66 | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | Silver Mirror test is given by which one of the following compounds ? | [{"identifier": "A", "content": "Acetone "}, {"identifier": "B", "content": "Formaldehyde "}, {"identifier": "C", "content": "Benzophenone "}, {"identifier": "D", "content": "Acetaldehyde "}] | null | null | $$(a,c)$$ Both formaldehyde and acetaldehyde give silver mirror with Tollen's reagent. | mcqm | aieee-2011 | 357 |
BHnOPHD2ez8uWd68rz6hy | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | Which is the most suitable reagent for the following transformation ?
<br/><br/><img src="data:image/png;base64,UklGRvoQAABXRUJQVlA4IO4QAADwZACdASoAA6gAPm02mEkkIqKhIdK5GIANiWlu4XaxG/ON8TfzL8N/AL+9/1v9jv3b9g/Fx52/X/2S/JH4psudp38h+tH3X+zfs1/b/3f+R/1H8dfjhqC/l/8z/qv9S/ar+9fuXx3Wjf7H/e+oF6ffQ/83/gP3a/vno//53969SPrr/sPcA/mn... | [{"identifier": "A", "content": "alkaline KMnO<sub>4</sub>"}, {"identifier": "B", "content": "Tollen's reagent "}, {"identifier": "C", "content": "I<sub>2</sub>/NaOH"}, {"identifier": "D", "content": "CrO<sub>2</sub>Cl<sub>2</sub>/CS<sub>2</sub>"}] | ["C"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264664/exam_images/xhkgycvsb4dfopoujfxy.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267546/exam_images/yh8hdnidcpoembf1nwbd.webp"><source media="(max-wid... | mcq | jee-main-2019-online-10th-january-evening-slot | 359 |
ybUJySRGZ5rEs44h0E3rsa0w2w9jx0ucc4t | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | Compound A(C<sub>9</sub>H<sub>10</sub>O) shows positive iodoform test. Oxidation of A with KMnO<sub>4</sub>/KOH given acid
B(C<sub>8</sub>H<sub>6</sub>O<sub>4</sub>). Anhydride of B is used for the preparation of phenolphthalein. Compound A is: | [{"identifier": "A", "content": "<picture><source media=\"(max-width: 320px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266727/exam_images/zxlbunqbtkvipewmmrnw.webp\"><img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265156/exam_images/awpzvr85ivtovjhr8rqx.webp\" style=\"max-width... | ["D"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266811/exam_images/alyrdlbhxb1vfhzmon82.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266113/exam_images/vyz8htaxtwhyhwlxnkz1.webp"><source media="(max-wid... | mcq | jee-main-2019-online-10th-april-evening-slot | 360 |
9bR7LLngJCY9Bc53BOjgy2xukf7tmox9 | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | An organic compound (A) (molecular formula
C<sub>6</sub>H<sub>12</sub>O<sub>2</sub>) was hydrolysed with dil. H<sub>2</sub>SO<sub>4</sub> to give
a carboxylic acid (B) and an alcohol (C). ‘C’
gives white turbidity immediately when treated
with anhydrous ZnCl<sub>2</sub> and conc. HCl. The
organic compound (A) is : | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264458/exam_images/vxwmhc81rlxmgjkok8dq.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Aldehydes, Ketones ... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264225/exam_images/h0d0bag0spsjiaeusgza.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 143 Englis... | mcq | jee-main-2020-online-4th-september-morning-slot | 361 |
Cav9RjZYrYvXTKqtM51klus87ww | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | 2, 4-DNP test can be used to identify : | [{"identifier": "A", "content": "ether"}, {"identifier": "B", "content": "amine"}, {"identifier": "C", "content": "aldehyde"}, {"identifier": "D", "content": "halogens"}] | ["C"] | null | 2,4 DNP test is used to identify
– (CO) – group. It
gives addition reaction with carbonyl
compounds. So, it can be used to identify
aldehyde in the given option. It gives yellow/
orange ppt with carbonyl containing
compounds.
<br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263687/exam_images/dgz4ka... | mcq | jee-main-2021-online-26th-february-evening-slot | 362 |
AnSbr7rr2nJNKomoGi1kmm1mrxa | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | In Tollen's test for aldehyde, the overall number of electron(s) transferred to the Tollen's reagent formula [Ag(NH<sub>3</sub>)<sub>2</sub>]<sup>+</sup> per aldehyde group to form silver mirror is ___________. (Round off to the Nearest Integer). | [] | null | 2 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kxpysbb9/c1940ab0-de95-4652-a7f9-ca6749f2162f/99d7a750-67c8-11ec-876a-c595023c9bc7/file-1kxpysbba.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1kxpysbb9/c1940ab0-de95-4652-a7f9-ca6749f2162f/99d7a750-67c8-11ec-876a-c595023c9bc7/fi... | integer | jee-main-2021-online-18th-march-evening-shift | 363 |
1krq6aop8 | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <img src="data:image/png;base64,UklGRuYOAABXRUJQVlA4INoOAABQVgCdASp+ApQAPm02mEikIqKhIvMpqIANiWlu/HyYonznZ12/oL/J/xS8Ef7l+VHYpeo8y6vWvx/z/8P8zP9T/Lvw89Afe7/Ufk78BHqD+9/y39lP6X6c/0W/wHfdUz/Tz+s+4R7f/Lf81/Df3Y8wH+k/jv7M+43wAfAD+WH8c9jv69+hXkYd+/pz8AX44/wH89/uf/D/n30z/pH+3/i39s/Vj2ofn/9Y/4f8t/yP6zfYd+of/A/kH91/9/9u+Wj2U+jz... | [{"identifier": "A", "content": "(I), (III) and (IV) only"}, {"identifier": "B", "content": "Only (IV)"}, {"identifier": "C", "content": "Only (II)"}, {"identifier": "D", "content": "(III) and (IV) only"}] | ["C"] | null | <p> Only compound (II) which has ketonic group does not form silver mirror when treated with Tollen’s reagent.
Because Tollen’s reagent oxidises an aldehyde into the corresponding carboxylic acid. Ketones are not oxidised by Tollen’s reagent, so the treatment of a ketone with Tollen’s reagent in a glass test tube does... | mcq | jee-main-2021-online-20th-july-morning-shift | 364 |
1krus2jhv | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267141/exam_images/m4pgyvlokxatuq0r49cy.webp"/><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265431/exam_images/i0fjosalajcmenwtmfqa.webp"/><img src="data:image/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264472/exam_images/upmzy4wdqsvzo5s2dbq4.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Aldehydes, Ketones and... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265988/exam_images/dttahgys2qsx6qoettup.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 106 English E... | mcq | jee-main-2021-online-25th-july-morning-shift | 365 |
1l6gqrfua | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>The products formed in the following reaction, A and B are</p>
<p><img src="data:image/png;base64,UklGRtgJAABXRUJQVlA4IMwJAADwggCdASoAA0YBP4G812Y2LiwnITB5GsAwCWlu+F6ogMNJNlvV5u/z1rHZ59rcyw3j59hkt//+o0h7ZmDKiUC2jsUhCW5Xk5O6GtycndDW5OTuhrcnJ3Q1uSOZqynZAWFa8bpRjabGvAEDS0u6GtycndDW5OTuhrcnI2jxaR0OPYnl7S0u6GtycndDW5OTuhr... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6hz5tjq/297ed14a-ea98-4969-a133-8e912455e812/bea99760-1591-11ed-abd2-c5f8c222b719/file-1l6hz5tjr.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6hz5tjq/297ed14a-ea98-4969-a133-8e912455e812/bea... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lc5m72zl/d0b848e0-820d-43bd-a2a0-4f12f17b3abc/ef90d510-858e-11ed-a4e1-239777dab634/file-1lc5m72zm.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lc5m72zl/d0b848e0-820d-43bd-a2a0-4f12f17b3abc/ef90d510-858e-11ed-a4e1-239777dab634/fi... | mcq | jee-main-2022-online-26th-july-morning-shift | 367 |
1l6kuvln8 | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>The spin only magnetic moment of the complex present in Fehling's reagent is __________ B.M. (Nearest integer).</p> | [] | null | 2 | In the complex present in Fehling's reagent, $\mathrm{Cu}^{+2}$ ion is present.
<br/><br/>
So, spin only magnetic moment
<br/><br/>
$$
=\sqrt{1(1+2)}
$$
<br/><br/>
$$
\begin{aligned}
& =\sqrt{3} \simeq 2 \mathrm{~B} . \mathrm{M}
\end{aligned}
$$ | integer | jee-main-2022-online-27th-july-evening-shift | 368 |
ldo9stfn | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | The number of molecules which gives the haloform test among the following molecules is ________.
<br/><br/>
<img src="data:image/png;base64,UklGRqoMAABXRUJQVlA4IJ4MAABwsACdASoAA74BP4G+2WW2L6ynItDZEsAwCWlu/BV4hWwHZ1+fsHjHmIOqHnd7S/hWqGK++nFUn/SNerHkf/3wIP/uIctG6tTMuwwvfxx7+qZMaN1bMAd0/b/QVFswB3T9v53oVLWy2we9SPHJMGp//+jb... | [] | null | 3 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lectdvbd/29fed490-3141-4d41-ad74-32b1bab398b5/f782ab90-b11c-11ed-b393-e7fb130a46e6/file-1lectdvbe.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lectdvbd/29fed490-3141-4d41-ad74-32b1bab398b5/f782ab90-b11c-11ed-b393-e7fb130a46e6/fi... | integer | jee-main-2023-online-31st-january-evening-shift | 369 |
1ldolq55s | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>Number of isomeric compounds with molecular formula $$\mathrm{C}_{9} \mathrm{H}_{10} \mathrm{O}$$ which (i) do not dissolve in $$\mathrm{NaOH}$$ (ii) do not dissolve in $$\mathrm{HCl}$$. (iii) do not give orange precipitate with 2,4-DNP (iv) on hydrogenation give identical compound with molecular formula $$\mathrm{C... | [] | null | 2 | <p>2 possibilities</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1ldx6iypp/c0372b7c-5364-439a-a91c-30d198f825c9/d1782ed0-a883-11ed-99b3-79cb23978059/file-1ldx6iypq.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1ldx6iypp/c0372b7c-5364-439a-a91c-30d198f825c9/d1782ed0-a883... | integer | jee-main-2023-online-1st-february-morning-shift | 370 |
1ldr3swmj | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>Which of the following compounds would give the following set of qualitative analysis ?</p>
<p>(i) Fehling's Test : Positive</p>
<p>(ii) Na fusion extract upon treatment with sodium nitroprusside gives a blood red colour but not prussian blue.</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldrewdom/8de08289-83c7-4ac3-a174-333c02cd320d/dbb05e60-a557-11ed-803e-f1576252b48d/file-1ldrewdon.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldrewdom/8de08289-83c7-4ac3-a174-333c02cd320d/dbb... | ["A"] | null | Aromatic aldehydes do not respond Fehling's test. $(\mathrm{B}),(\mathrm{C}),(\mathrm{D})$ are aromatic aldehydes.<br/><br/>
If $\mathrm{N}$ and $\mathrm{S}$ attached with carbon atom give blood red with sodium nitroprusside gives a blood red colour but not prussian blue. | mcq | jee-main-2023-online-30th-january-morning-shift | 371 |
1lgrlmtro | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>The mass of NH$$_3$$ produced when 131.8 kg of cyclohexanecarbaldehyde undergoes Tollen's test is ________ kg. (Nearest Integer)</p>
<p>Molar Mass of</p>
<p>C = 12g/mol</p>
<p>N = 14g/mol</p>
<p>O = 16g/mol</p> | [] | null | 60 | $$
\begin{aligned}
& \mathrm{RCHO}+2\left[\mathrm{Ag}\left(\mathrm{NH}_3\right)_2\right] \mathrm{OH} \rightarrow \mathrm{RCOONH}_4+2 \mathrm{Ag} +3 \mathrm{NH}_3+\mathrm{H}_2 \mathrm{O} \\\\
& \text {moles }=\frac{131.8 \times 10^3}{112}=1.176 \times 10^3 \\\\
& 1 \text { mole of aldehyde produces } 3 \text { moles of... | integer | jee-main-2023-online-12th-april-morning-shift | 372 |
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