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1lgsyqzjc | chemistry | hydrocarbons | properties-and-preparation-of-alkanes | <p>Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.</p>
<p><img src="data:image/png;base64,UklGRkYOAABXRUJQVlA4IDoOAADwjQCdASoAAxwBP4HA12U2MCsnItSJGsAwCWlu/Gf5GutQ2/1w7V/AWvnNs9p/n/9L+7sxX++mynG9CobagKADnYVzW6MOSdC7pmiTJDLxtqAoAOgTuOtKpjaJmtnxPLBQarouZntZjvsYceTG2oCg... | [{"identifier": "A", "content": "Both A and R are true and R is the correct explanation of A"}, {"identifier": "B", "content": "A is false but R is true"}, {"identifier": "C", "content": "A is true but R is false"}, {"identifier": "D", "content": "Both A and R are true but R is NOT the correct explanation of A"}] | ["B"] | null | Wolff-Kishner reduction is not suitable for base
sensitive group.
<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1libjjjf3/27437653-916f-4446-876a-6f74399cb180/8ec009f0-ff9a-11ed-8d3c-6fd4c50a7427/file-1libjjjf4.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1libjjjf3/27... | mcq | jee-main-2023-online-11th-april-evening-shift | 2,465 |
lv5gt4ww | chemistry | hydrocarbons | properties-and-preparation-of-alkanes | <p>In the given compound, the number of 2$$^\circ$$ carbon atom/s is ________.</p>
<p><img src="data:image/png;base64,UklGRtAOAABXRUJQVlA4IMQOAABQXwCdASoAA6wAPm02mUgkIyKhJJHJKIANiWlu+F+5y9/mvIiM8o/5ntj/wP5T9iz6XlL3G/yP7bfuP7X7fv5j/b+HPAI9f/7TfDbO+gR7r/Yf128frUdyAPL7/ieI9+F/4/sBfzz/J+hn9aeif6w9hD9cusl+5I1D+4dYoWyqsULZVW... | [{"identifier": "A", "content": "Two"}, {"identifier": "B", "content": "Three"}, {"identifier": "C", "content": "Four"}, {"identifier": "D", "content": "One"}] | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lw92cfst/d722d444-17f0-41d4-a1f7-9c781db4958f/c419dad0-1368-11ef-be09-0704d0bfee2a/file-1lw92cfsu.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lw92cfst/d722d444-17f0-41d4-a1f7-9c781db4958f/c419dad0-1368-11ef-be09-0704d0bfee2a... | mcq | jee-main-2024-online-8th-april-morning-shift | 2,466 |
FS3AZaswn6fybz5s | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | <img src="data:image/png;base64,UklGRjINAABXRUJQVlA4ICYNAACQmQCdASoAA2MBP4HA2WW2MKynIXOZEsAwCWlu/DJZGutQ3P1p/1Xc1/ots5xBs+ezf5TTs9luAD88836dJ9uUbGZCeh//PB0DLiHcrHuxDuVj3Yh3Kx7sQ7lY92IdyrqYwaPzztQQXGDRqjJrQStWT887UEFxg0fnnagguRmgguMHWkLv4RDJWusxg0fnJUBhv1OBHM+xc2uVBuThIHGerqqlGDR+edqCC4waPzztSPzztSNd/VsJS+HqlzaplOAaxB4N... | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265464/exam_images/ikp7a86qmuptee06j1na.webp\" loading=\"lazy\" alt=\"AIEEE 2006 Chemistry - Hydrocarbons Question 116 English Option 1\"> "}, {"identifier": "B", "content": "<img class=\"question... | ["B"] | null | <b>Hofmann's rule :</b> When theoretically more than one type of alkenes are possible in eliminations reaction, the alkene containing least alkylated double bond is formed as major product. Hence
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263646/exam_images/opq6agkib... | mcq | aieee-2006 | 2,467 |
dfPoS0b0mi8tnOtL | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | The main product of the following reaction is
<br/><br/>$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ $${C_6}{H_5}C{H_2}CH\left( {OH} \right)CH{\left( {C{H_3}} \right)_2}\buildrel {conc.{H_2}S{O_4}} \over
\longrightarrow \,?$$ | [{"identifier": "A", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263563/exam_images/nmdaua2qc0129v49g1qo.webp\" loading=\"lazy\" alt=\"AIEEE 2010 Chemistry - Hydrocarbons Question 114 English Option 1\"> "}, {"identifier": "B", "content": "<img class=\"question... | ["A"] | null | Whenever dehydration can produce two different alkenes, major product is formed according to <b>Saytzeff rule</b> i.e. more substituted alkene (alkene having lesser number of hydrogen atoms on the two doubly bonded carbon atoms ) is the major product.
<br><br><i>Such reactions which can produce two or more structural i... | mcq | aieee-2010 | 2,468 |
TA3us7UrAp2iuloV | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% O<sub>2</sub> by volume
for complete combustion. After combustion the gases occupy 345 mL. Assuming that the water formed is
in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydroca... | [{"identifier": "A", "content": "C<sub>3</sub>H<sub>8</sub>"}, {"identifier": "B", "content": "C<sub>4</sub>H<sub>8</sub>"}, {"identifier": "C", "content": "C<sub>4</sub>H<sub>10 </sub>"}, {"identifier": "D", "content": "C<sub>3</sub>H<sub>6</sub>"}] | ["A"] | null | $${C_x}{H_{y\left( g \right)}} + \left( {{{4x + y} \over 4}} \right){O_{2\left( g \right)}}$$
$$ \to xC{O_{2\left( g \right)}} + {y \over 2}{H_2}O\left( l \right)$$
<br><br>Volume of $${O_2}$$ used
<br><br>$$ = 375 \times {{20} \over {100}} = 75ml$$
<br><br>$$\therefore$$ From the reaction of combination
<br><br>$$1\... | mcq | jee-main-2016-offline | 2,469 |
jJQuoLtlHQfjujXJ | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | The trans-alkenes are formed by the reduction of alkynes with | [{"identifier": "A", "content": "Sn - HCl"}, {"identifier": "B", "content": "H<sub>2</sub> \u2013 Pd/C, BaSO<sub>4</sub>"}, {"identifier": "C", "content": "NaBH<sub>4</sub>"}, {"identifier": "D", "content": "Na/liq. NH<sub>3</sub>"}] | ["D"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266061/exam_images/nqozr5qtr1mgktyb2hst.webp" loading="lazy" alt="JEE Main 2018 (Offline) Chemistry - Hydrocarbons Question 117 English Explanation"> | mcq | jee-main-2018-offline | 2,470 |
Mzk4SI74rqaBfWRiZxpQS | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | The major product formed in the following reaction is :
<br/><img src="data:image/png;base64,UklGRpQLAABXRUJQVlA4IIgLAABwogCdASoAA6IBP4G82GY2LqynIXCZCsAwCWlu8nAXxEp99su/nUN39jrRHUoT/9tMxg336Qcm959D0Hqlp6RrkF4Jj4KuoQQ3jjtU7MPw6k7YLr5UqTk7oh1Jyd0Q6k5O6IdSRzitHwTElC/CubW+c9Br8P18ngSFEbpJtGqBq5HL13D5rqw0dScndEOpOTuh0j/BMW... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l7x07p7w/db8dd16d-c940-429c-9008-4995856566f4/d52faac0-31a1-11ed-b3ea-45214d807530/file-1l7x07p7x.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l7x07p7w/db8dd16d-c940-429c-9008-4995856566f4/d52... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7x03ja1/cafb46fe-e0bf-4ca8-b879-ae08f5227cf8/615c5490-31a1-11ed-b3ea-45214d807530/file-1l7x03ja2.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7x03ja1/cafb46fe-e0bf-4ca8-b879-ae08f5227cf8/615c5490-31a1-11ed-b3ea-45214d807530/fi... | mcq | jee-main-2018-online-15th-april-evening-slot | 2,472 |
vlxHeCaBBlY8pTLr7I4VA | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | The major product of the following reaction is –
<br/><br/><img src="data:image/png;base64,UklGRjoQAABXRUJQVlA4IC4QAAAwtwCdASoAA8sBP4G+12Y2LywnIRFpasAwCWlu4XSDgmNwu55Z/zXcbkK2dHY/LmQAfoXmcTnvuVk6PM9rwHRP5BMbYe2XlMzHc47nHc47nHc47nHc47nHc47nHc3UR4ovEbN2EYn8gmNsPbLymZjucdzjrPuBFYc+/4qWwZdhTR03rJdQALOKHjbJ1pvYs3W/6WZNwExth... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266158/exam_images/wfzec5xtx4xm7niunids.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Quest... | ["B"] | null | Presence of strong base (EtO<sup>-</sup>) and heat indicates elimination.<br><br>
Thus, the compound undergoes dehydrohalogenation, and alkene is produced. As per the position of <b>Cl</b> in
substrate, the following 2 alkenes are formed as product:<br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/imag... | mcq | jee-main-2019-online-12th-january-evening-slot | 2,474 |
RRIqSCEUEj2GFbTjaFiYI | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | The major product of the following reaction is :
<img src="data:image/png;base64,UklGRp4RAABXRUJQVlA4IJIRAADwlQCdASoAA9kAP4G81WQ2L7emovRKWvAwCWlu4WxhG/PP8wf4nuL/5uRcN29lfAL9l7ymATvOJvX2CyJHmf/fzw/uQ1VnQj/TVBuagoF3eCIilJ99NTViShKaW5sCg8R+I/lsFLl7+RnYyqug3QkG1eaCRftPrzavNBAqMJvA1Rezf/2OHy/Y3+rNncxdd8oq1aBv1iuetxT2L8qU9DT... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267015/exam_images/ytbcvtia58ovmuyepzhw.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 9th April Morning Slot Chemistry - Hydrocarbons Question... | ["D"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265697/exam_images/a43b0yoanvopuu07awht.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264565/exam_images/izvubynj44nsjj3au34f.webp"><source media="(max-wid... | mcq | jee-main-2019-online-9th-april-morning-slot | 2,476 |
6emkit5WXlGs4fgFqnHXm | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | The major product of the following reaction is
<br/><br/><img src="data:image/png;base64,UklGRtoKAABXRUJQVlA4IM4KAABwegCdASoAA0kBP4HA2GY2LyynIZFY2sAwCWlu4W+17mNwvj5e/z2N74O2b/ZntebziALvfp2f2ayunn//gKezdm7N2bs3Zuzdm7N2bs3Zuzdm7N2UPGFixpX0H/lJmOXnmm5r8sSAkBICQEgJASAkBIBol1y65dahQEd+JW4GdFI8kODb6dyUuuuS3djuFjjxhYsaWFICT/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266934/exam_images/qxbazsmhypsgp3kuhypk.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Hydrocarbons Quest... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265695/exam_images/jbjqjq9letlhzolwdszn.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264131/exam_images/rhiwl5zqyceflih29rqy.webp"><source media="(max-wid... | mcq | jee-main-2019-online-10th-january-morning-slot | 2,478 |
9JJzZ2SLzT2x9bknFG7k9k2k5dzm2gh | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | Consider the following reaction :<br/><br/>
$${\left( {C{H_3}} \right)_3}CCH\left( {OH} \right)C{H_3}\buildrel {conc.\,\,\,{H_2}S{O_4}} \over
\longrightarrow $$<br/><br/>
$${\left( {C{H_3}} \right)_2}CHCH\left( {Br} \right)C{H_3}\buildrel {alc.\,\,KOH} \over
\longrightarrow $$<br/><br/>
$${\left( {C{H_3}} \right)_2}{... | [{"identifier": "A", "content": "(d) only"}, {"identifier": "B", "content": "(b) and (d)"}, {"identifier": "C", "content": "(a), (c) and (d) "}, {"identifier": "D", "content": "(c) only"}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266367/exam_images/iooxte9wmqriexyzhlib.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Hydrocarbons Question 89 English Explanation"> | mcq | jee-main-2020-online-7th-january-morning-slot | 2,479 |
BvFrkxm8xP3oA7HspD7k9k2k5ic12hr | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | The correct order of heat of combustion for
following alkadienes is :<br/>
<img src="data:image/png;base64,UklGRqADAABXRUJQVlA4IJQDAADwGQCdASrWAHgAPm02mEkkIyKhIXmZkIANiWlu4XExG+w+/lPZ9/SOji8sHxP4r+gebP2q8Cz/FfxnwANV79aEUX5MHDL8wr/O/j/9T/bP3B/MP+s/mXsk/ox/Z/ekEkeLGxAJ2VPPT8sW6EvVRszPdFjEAnTSGCvNzlf1AqRXkG5BAZGTEXWTq0IH0... | [{"identifier": "A", "content": "(b) < (c) < (a)"}, {"identifier": "B", "content": "(a) < (c) < (b)"}, {"identifier": "C", "content": "(a) < (b) < (c)"}, {"identifier": "D", "content": "(c) < (b) < (a)"}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264974/exam_images/op3ajacgh4awkd5v1lbz.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 84 English Explanation">
<br><br>In lso... | mcq | jee-main-2020-online-9th-january-morning-slot | 2,480 |
mdQud17aY3e3WX6XcB1klurfm78 | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | In $$\mathop C\limits^1 {H_2} = \mathop C\limits^2 = \mathop C\limits^3 H - \mathop C\limits^4 {H_3}$$ molecule, the hybridization of carbon 1, 2, 3 and 4 respectively, are : | [{"identifier": "A", "content": "sp<sup>2</sup>, sp, sp<sup>2</sup>, sp<sup>3</sup>"}, {"identifier": "B", "content": "sp<sup>2</sup>, sp<sup>2</sup>, sp<sup>2</sup>, sp<sup>3</sup>"}, {"identifier": "C", "content": "sp<sup>3</sup>, sp, sp<sup>3</sup>, sp<sup>3</sup>"}, {"identifier": "D", "content": "sp<sup>2</sup>, s... | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263329/exam_images/mthtslt6k7er0oc1sirw.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 26th February Evening Shift Chemistry - Hydrocarbons Question 70 English Explanation"> | mcq | jee-main-2021-online-26th-february-evening-slot | 2,481 |
1lgq4k0ke | chemistry | hydrocarbons | properties-and-preparation-of-alkenes | <p><img src="data:image/png;base64,UklGRpAHAABXRUJQVlA4IIQHAABQZgCdASoAA/0AP4HA22U2MK2nIZIpSsAwCWlu4WjT5mNwvV6htQbNvtZmZwxW39JJntM1XwnTiHoZpE3cBmjX1hHW4gnAKZfzL+ZfzL+ZfzL+ZfzL+JM8v3lX8R/P6TYkS2mn9i2qWp/l/A5rWOX8DmtY5fwOa1jl/A5ysQOa0DScim1BVZdbiCFQ9j+94pFGtY5fwOa1jl/A5rWOX8DmtY5f0+eX8DxdydEDmtY5fwOa1jl/A5rWOX8DmtY6CNmeX... | [{"identifier": "A", "content": "Finally both rings will become six membered each."}, {"identifier": "B", "content": "Only A will become 6 membered."}, {"identifier": "C", "content": "Ring expansion can go upto seven membered rings"}, {"identifier": "D", "content": "Finally both rings will become five membered each."}] | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lh1pr59h/81555a0e-8ba5-4fb6-b32a-bf1797b2aca2/cb30d060-e666-11ed-b7c9-957e12d0338a/file-1lh1pr59i.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lh1pr59h/81555a0e-8ba5-4fb6-b32a-bf1797b2aca2/cb30d060-e666-11ed-b7c9-957e12d0338a/fi... | mcq | jee-main-2023-online-13th-april-morning-shift | 2,483 |
89W1LZPiizn2R1Zs | chemistry | hydrocarbons | properties-and-preparation-of-alkynes | The hydrocarbon which can react with sodium in liquid ammonia is | [{"identifier": "A", "content": "CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>C\u2261CCH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub> "}, {"identifier": "B", "content": "CH<sub>3</sub>CH<sub>2</sub>C\u2261CH"}, {"identifier": "C", "content": "CH<sub>3</sub>CH=CHCH<sub>3</sub> "}, {"identifier": "D", "content": "CH<sub>3</sub>C... | ["B"] | null | Alkynes having terminal $$ - C \equiv H$$ react with Na in liquid ammonia to yield $${H_2}$$ gas of the given compounds $$C{H_3}C{H_2}C \equiv CH$$ can react with Na in liquid $$N{H_3}$$ so the correct answer is $$(b).$$
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v17342... | mcq | aieee-2008 | 2,484 |
E2dXvNkNpXK7JVZ3Sf1Mn | chemistry | hydrocarbons | properties-and-preparation-of-alkynes | The correct order for acid strength of compounds : <br/><br/>CH $$ \equiv $$ CH, CH<sub>3</sub>–C $$ \equiv $$ CH and CH<sub>2</sub> = CH<sub>2</sub> is as follows | [{"identifier": "A", "content": "CH $$ \\equiv $$ CH > CH<sub>2</sub> = CH<sub>2</sub> > CH<sub>3</sub> \u2013 C $$ \\equiv $$ CH "}, {"identifier": "B", "content": "CH<sub>3</sub> \u2013 C $$ \\equiv $$ CH > CH<sub>2</sub> = CH<sub>2</sub> > HC $$ \\equiv $$ CH"}, {"identifier": "C", "content": "HC $$ \\eq... | ["C"] | null | Among CH $$ \equiv $$ CH and CH<sub>2</sub> = CH<sub>2</sub>, in CH $$ \equiv $$ CH compound H atom is attached with sp hybridised C atom and in CH<sub>2</sub> = CH<sub>2</sub> compound H atom is attached with sp<sup>2</sup> hybridised C atom.
<br><br>As we know, electronegitivity of sp carbon is more compare to sp<sup... | mcq | jee-main-2019-online-12th-january-morning-slot | 2,485 |
5In4e6vLm2hQJRywrm3rsa0w2w9jx920kjf | chemistry | hydrocarbons | properties-and-preparation-of-alkynes | Consider the following reactions :
<br/><img src="data:image/png;base64,UklGRp4NAABXRUJQVlA4IJINAABQdwCdASoAA+oAP4G+1WW2L6unIhHJqsAwCWlu/HyZbb0HZ19fqL/au3T/X+I9f749z6dnMrlAF1pGqhKl5Y54rwjmhH7dJI/bpJH7dJI/bpJH7dJI/bpJH7dJI/bpHgNObU5eAK+4E2cQ34jWgRiC7lOoxirkj2QAb+yADf2QAb+yADf2QAb+x9SVrS8ZWAalWIJSD9rCaWXxCbHT9dPzt2PpQEV... | [{"identifier": "A", "content": "$$CH \\equiv CH$$"}, {"identifier": "B", "content": "$$C{H_3} - C \\equiv C - C{H_3}$$"}, {"identifier": "C", "content": "$$C{H_3} - C \\equiv CH$$"}, {"identifier": "D", "content": "$$C{H_2} = C{H_2}$$"}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265956/exam_images/skt5p2wr69cnfwtlq0iv.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 12th April Evening Slot Chemistry - Hydrocarbons Question 90 English Explanation"> | mcq | jee-main-2019-online-12th-april-evening-slot | 2,486 |
vhxIvDxZuBdZYxUw5w1kmlmskfq | chemistry | hydrocarbons | properties-and-preparation-of-alkynes | Match List - I with List - II :<br/><br/><b>List - I (Chemicals)</b><br/><br/>(a) Alcoholic potassium hydroxide<br/><br/>(b) Pd/BaSO<sub>4</sub><br/><br/>(c) BHC (Benzene hexachloride)<br/><br/>(d) Polyacetylene<br/><br/><b>List - II (Use / Preparation / Constituent)</b><br/><br/>(i) Electrodes in batteries<br/><br/>(i... | [{"identifier": "A", "content": "(a) - (ii), (b) - (i), (c) - (iv), (d) - (iii)"}, {"identifier": "B", "content": "(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)"}, {"identifier": "C", "content": "(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)"}, {"identifier": "D", "content": "(a) - (ii), (b) - (iv), (c) - (i), (d) - ... | ["B"] | null | Alc. KOH causes elimination<br><br>
Pd / BaSO<sub>4</sub> – Lindlar’s catalyst<br><br>
BHC is obtained by the addition reaction of Cl<sub>2</sub>
with benzene in presence of U.V.<br><br>
Thin film of polyacetylene can be used as
electrode in batteries. | mcq | jee-main-2021-online-18th-march-morning-shift | 2,487 |
1krute03p | chemistry | hydrocarbons | properties-and-preparation-of-alkynes | The number of sigma bonds in <br/><br/><img src="data:image/png;base64,UklGRv4FAABXRUJQVlA4IPIFAADwKQCdASoeAVMAPm00l0gkIyIhJRS6SIANiWlu/HvvPGcr/qXa1/euiO79+zvpW/pPMAd458N/Kv2+9Yf7d+UHmD7wv2byU/3r+XcB/S//Ofxj2AvXT5J/bf5B+339Q89f+w9AO40/0Pkgfop5enenny/138t/ED3/v8X+Pf2H9mPdJ8y/9f+a+yN/vv5N/hvdA6pv9jCHWuXp8o6Bz8a6LYN189JCy... | [] | null | 10 | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263311/exam_images/fppjrp6dlnnlo5wrxl7k.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Hydrocarbons Question 59 English Explanation"><br>Numbers of $... | integer | jee-main-2021-online-25th-july-morning-shift | 2,488 |
ZQ3aov898q3p028i | chemistry | hydrocarbons | reaction-of-alkanes | On mixing a certain alkane with chlorine and irradiating it with ultravioletlight, it forms only one
monochloroalkane. This alkane could be | [{"identifier": "A", "content": "pentane"}, {"identifier": "B", "content": "isopentane"}, {"identifier": "C", "content": "neopentane"}, {"identifier": "D", "content": "propane"}] | ["C"] | null | In neopentane all the $$H$$ atoms are same $$\left( {{1^ \circ }} \right).$$
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266981/exam_images/nph6io2d5mavdlsd6swj.webp" loading="lazy" alt="AIEEE 2003 Chemistry - Hydrocarbons Question 133 English Explanation"> | mcq | aieee-2003 | 2,490 |
tNKGNwWii5UKiC2h | chemistry | hydrocarbons | reaction-of-alkanes | Of the five isomeric hexanes, the isomer which can give two monochlorinated
compounds is | [{"identifier": "A", "content": "n-hexane"}, {"identifier": "B", "content": "2, 3-dimethylbutane "}, {"identifier": "C", "content": "2,2-dimethylbutane"}, {"identifier": "D", "content": "2-methylpentane"}] | ["B"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265118/exam_images/lju48vwycdbgx6udghtk.webp" loading="lazy" alt="AIEEE 2005 Chemistry - Hydrocarbons Question 129 English Explanation 1">
<br><br>Since it contains only two types of $$H$$-atoms hence it will give only two mono chl... | mcq | aieee-2005 | 2,491 |
hWTepb6yo1U6lbU2 | chemistry | hydrocarbons | reaction-of-alkanes | 2 methylbutane on reacting with bromine in the presence of sunlight gives mainly | [{"identifier": "A", "content": "1 \u2013 bromo -2 - methylbutane"}, {"identifier": "B", "content": "2 \u2013 bromo -2 - methylbutane "}, {"identifier": "C", "content": "2 \u2013 bromo -3 - methylbutane"}, {"identifier": "D", "content": "1 \u2013 bromo -3 \u2013 methylbutane "}] | ["B"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266783/exam_images/rpasa80dxuxdjkkqxjt8.webp" loading="lazy" alt="AIEEE 2005 Chemistry - Hydrocarbons Question 132 English Explanation">
<br><br>Ease of replacement of $$H$$-atom $${3^ \circ } > {2^ \circ } > {1^ \circ }.$$ | mcq | aieee-2005 | 2,492 |
lgZ0ZnOGvoPshY5c2Oqdb | chemistry | hydrocarbons | reaction-of-alkanes | 5 L of an alkane requires 25 L of oxygen for its complete combustion. If all volumes are measured at constant temperature and pressure, the alkane is : | [{"identifier": "A", "content": "Ethane "}, {"identifier": "B", "content": "Propane "}, {"identifier": "C", "content": "Butane"}, {"identifier": "D", "content": "Isobutane"}] | ["B"] | null | We know, conbustion of Hydrocarbon
<br><br>C<sub>x</sub> H<sub>y</sub> + (x + $${y \over 4}$$)O<sub>2</sub> $$ \to $$ x CO<sub>2</sub> + $${y \over 2}$$ H<sub>2</sub>O
<br><br>So, to consume 1 mole of C<sub>x</sub> H<sub>y</sub> we need
<br><br>(x + $${y \over 4}$$) mole of O<sub>2</sub> gas.
<br><br>As ... | mcq | jee-main-2016-online-9th-april-morning-slot | 2,493 |
tRAfpUpQgTZfu2xBf1jgy2xukf2cz3o5 | chemistry | hydrocarbons | reaction-of-alkanes | The total number of monohalogenated organic
products in the following (including
stereoisomers) reaction is ______.
<img src="data:image/png;base64,UklGRrwPAABXRUJQVlA4ILAPAAAQUwCdASr0AX4APm02l0ikIyIhIbO6SIANiWlu4XEV7mNwpb4W/lPgP/Rf6j+VfoT+H/Lf1j8n/7L62H9L/GNtd9UPuv8g/r/+m/N73d/v38h/of+Q/snpb76f4n+RfiB8gvqb/Bfwz+x/7/+q... | [] | null | 8 | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265935/exam_images/grh3utwnv7ydh8bzkbur.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Hydrocarbons Question 80 English Explanation"> | integer | jee-main-2020-online-3rd-september-morning-slot | 2,495 |
7Evb6akwalt98gqr1U1kls82hh5 | chemistry | hydrocarbons | reaction-of-alkanes | Identify A in the given chemical reaction.<br/><br/>
<img src="data:image/png;base64,UklGRjAQAABXRUJQVlA4ICQQAAAwUgCdASrfAXsAPm02lkgkIyIhJNI5+IANiWlu4WsBG/ON8I/wz8ffMb+c/1j8evQv8L+aftn5X+oD8AdUd+8eR361/cf5n/bv93/gP3Y9/f8z/SfFf4Ofp3qC/lP8d/v38c/crz0f67+Rd5RVH9YvYF9bvlP+L/l35Mec3/P/zf+d/433F+qH90+0T7AP5//Ov8z/Lf6r/4fin/A... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267367/exam_images/wiqz86iwiraqqu5r58x9.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Hydrocarbons Quest... | ["D"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264213/exam_images/r12czhwinq2g8ywhxag0.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266127/exam_images/wbvi7daqiv9o57zvttvi.webp"><img src="https://res.c... | mcq | jee-main-2021-online-25th-february-morning-slot | 2,497 |
V3gZMChucf9b9KzhZ91kmkicf5x | chemistry | hydrocarbons | reaction-of-alkanes | Given below are two statements :<br/><br/>Statement I : 2-methylbutane on oxidation with KMnO<sub>4</sub> gives 2-methylbutan-2-ol.<br/><br/>Statement II : n-alkanes can be easily oxidised to corresponding alcohols with KMnO<sub>4</sub>.<br/><br/>Choose the correct option : | [{"identifier": "A", "content": "Both statement I and statement II are incorrect"}, {"identifier": "B", "content": "Both statement I and statement II are correct"}, {"identifier": "C", "content": "Statement I is correct but statement II is incorrect"}, {"identifier": "D", "content": "Statement I is incorrect but statem... | ["C"] | null | Alkanes having tertiary H can be oxidized to
corresponding alcohols by KMnO<sub>4</sub>.<br><br>
<img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265801/exam_images/vvievv8f3dckscmxv2px.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 1... | mcq | jee-main-2021-online-17th-march-evening-shift | 2,498 |
1krz0y1js | chemistry | hydrocarbons | reaction-of-alkanes | Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction :<br/><br/>CH<sub>4</sub> + I<sub>2</sub> $$\mathrel{\mathop{\kern0pt\rightleftharpoons}
\limits_{{\mathop{\rm Re}\nolimits} versible}^{hv}} $$ CH<sub>3</sub> $$-$$ I + HI | [{"identifier": "A", "content": "HOCl"}, {"identifier": "B", "content": "dilute HNO<sub>2</sub>"}, {"identifier": "C", "content": "Liquid NH<sub>3</sub>"}, {"identifier": "D", "content": "Concentrated HIO<sub>3</sub>"}] | ["D"] | null | Iodination of alkane is reversible reaction. It can be irreversible in the presence of strong oxidising agent like conc. HNO<sub>3</sub> or conc. HIO<sub>3</sub>. | mcq | jee-main-2021-online-27th-july-morning-shift | 2,499 |
1l6gqjxu9 | chemistry | hydrocarbons | reaction-of-alkanes | <p>$$
\stackrel{\bullet}{\mathrm{Cl}}+\mathrm{CH}_{4} \rightarrow \mathrm{A}+\mathrm{B}
$$</p>
<p>A and B in the above atmospheric reaction step are :</p> | [{"identifier": "A", "content": "$$\\mathrm{C}_{2} \\mathrm{H}_{6}$$ and $$\\mathrm{Cl}_{2}$$"}, {"identifier": "B", "content": "$$\\stackrel{\\bullet}{\\mathrm{C}} \\mathrm{HCl}_{2}$$ and $$\\mathrm{H}_{2}$$"}, {"identifier": "C", "content": "$$\\stackrel{\\bullet}{\\mathrm{C}}\\mathrm{H}_{3}$$ and $$\\mathrm{HCl}$$"}... | ["C"] | null | $$
\stackrel{\bullet}{\mathrm{Cl}}+\mathrm{CH}_4 \longrightarrow {\stackrel{\bullet}{\mathrm{C}}}\mathrm{H}_3+\mathrm{HCl}
$$ | mcq | jee-main-2022-online-26th-july-morning-shift | 2,500 |
1ldsd4e3j | chemistry | hydrocarbons | reaction-of-alkanes | <p>The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)</p> | [{"identifier": "A", "content": "2-Bromo-3,3-dimethylpentane"}, {"identifier": "B", "content": "2-Bromopropane"}, {"identifier": "C", "content": "1-Bromo-2-methylbutane"}, {"identifier": "D", "content": "2-Bromopentane"}] | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1let3x99l/b75d0279-1717-439a-bdc6-f6540e09e295/b857c190-ba12-11ed-bf62-29125e0e0d77/file-1let3x99m.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1let3x99l/b75d0279-1717-439a-bdc6-f6540e09e295/b857c190-ba12-11ed-bf62-29125e0e0d77... | mcq | jee-main-2023-online-29th-january-evening-shift | 2,501 |
1ldwvg705 | chemistry | hydrocarbons | reaction-of-alkanes | <p>Maximum number of isomeric monochloro derivatives which can be obtained from 2,2,5,5-tetramethylhexane by chlorination is _____________</p> | [] | null | 3 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1le5ezwy2/5b7437d2-4845-4a96-ae03-ed0d028712df/37167ea0-ad0b-11ed-a86d-8dfe0389db88/file-1le5ezwy3.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1le5ezwy2/5b7437d2-4845-4a96-ae03-ed0d028712df/37167ea0-ad0b-11ed-a86d-8dfe0389db88... | integer | jee-main-2023-online-24th-january-evening-shift | 2,503 |
1lh29honw | chemistry | hydrocarbons | reaction-of-alkanes | <p>Number of bromo derivatives obtained on treating ethane with excess of $$\mathrm{Br}_{2}$$ in diffused sunlight is ___________</p> | [] | null | 9 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1llm96n3v/1bb8720d-d0df-4c13-b8d9-62bc410de18b/5211b4b0-40e3-11ee-8358-1796f8234e47/file-6y3zli1llm96n3w.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1llm96n3v/1bb8720d-d0df-4c13-b8d9-62bc410de18b/5211b4b0-40e3-11ee-83... | integer | jee-main-2023-online-6th-april-morning-shift | 2,504 |
lv3xmagm | chemistry | hydrocarbons | reaction-of-alkanes | <p>Given below are two statements :</p>
<p>Statement (I) : $$\mathrm{S}_{\mathrm{N}} 2$$ reactions are 'stereospecific', indicating that they result in the formation of only one stereo-isomer as the product.</p>
<p>Statement (II) : $$\mathrm{S}_{\mathrm{N}} 1$$ reactions generally result in formation of product as race... | [{"identifier": "A", "content": "Both Statement I and Statement II are false\n"}, {"identifier": "B", "content": "Statement I is false but Statement II is true\n"}, {"identifier": "C", "content": "Statement I is true but Statement II is false\n"}, {"identifier": "D", "content": "Both Statement I and Statement II are tr... | ["D"] | null | <p>Statement (I) explains a characteristic of $$\mathrm{S}_{\mathrm{N}}2$$ (Substitution Nucleophilic Bimolecular) reactions. In $$\mathrm{S}_{\mathrm{N}}2$$ reactions, the attack of the nucleophile and the departure of the leaving group occur simultaneously in a single step. This reaction has a back-side attack mechan... | mcq | jee-main-2024-online-8th-april-evening-shift | 2,505 |
lvb2acnh | chemistry | hydrocarbons | reaction-of-alkanes | <p><img src="data:image/png;base64,UklGRtgHAABXRUJQVlA4IMwHAACwYQCdASoAA9gAP4G+2WU2L6ynIzD5AsAwCWlu/HyY+ZSHZ18/rRae6hmd7tT+Vijkr/5+Jf6VpBUZtqJTKQbVJ3AtmzaSHcdaVRm2opVGbailUZtqJavmd37xiSHwlmLKys/3hvEbailUZtqKVRm2opVGbaiWr5nd+8YlxBil9F/kmSCozbUUqjNtRSqM21FKetnzO794w1KyfO46yd5Etd7EDTF0XvRSo9421FKozbUUqjNoqJaZmPxjL2xO76qHd... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lvb0avcc/8ad37c39-8e2e-4aba-a7c1-8e6a716ad081/202686c0-00ae-11ef-be3f-17279d79e67d/file-1lvb0avcd.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lvb0avcc/8ad37c39-8e2e-4aba-a7c1-8e6a716ad081/202... | ["A"] | null | <p>In aqueous medium the reaction follows $$\mathrm{S_N 1}$$ mechanism majorly</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwbjw73x/393c202f-082e-4e53-b9d8-9eb03712d9be/f6107ad0-14c6-11ef-a0f4-45babcaa12d2/file-1lwbjw73y.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/... | mcq | jee-main-2024-online-6th-april-evening-shift | 2,506 |
xUYAEGRuMSmmUT7a | chemistry | hydrocarbons | reaction-of-alkenes | Butene-1 may be converted to butane by reaction with | [{"identifier": "A", "content": "Sn - HCI"}, {"identifier": "B", "content": "Zn - Hg"}, {"identifier": "C", "content": "Pd/H<sub>2</sub>"}, {"identifier": "D", "content": "Zn - HCI"}] | ["C"] | null | Alkenes combine with hydrogen under pressure and in presence of a catalyst $$(Ni, Pt$$ or $$Pd)$$ and form alkanes.
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265883/exam_images/qrz1vllfbwmcmod1got4.webp" loading="lazy" alt="AIEEE 2003 Chemistry - Hydrocarbons Quest... | mcq | aieee-2003 | 2,507 |
St0IILnMneZTu0Ou | chemistry | hydrocarbons | reaction-of-alkenes | The reaction of propene with HOCl (Cl<sub>2</sub> + H<sub>2</sub>O) proceeds through the intermediate: | [{"identifier": "A", "content": "$$\\mathrm{CH}_{3}-\\mathrm{CH}^{+}-\\mathrm{CH}_{2}-\\mathrm{OH}$$"}, {"identifier": "B", "content": "$$\\mathrm{CH}_{3}-\\mathrm{CHCl}-\\mathrm{CH}_{2}^{+}$$"}, {"identifier": "C", "content": "CH<sub>3</sub> - CH<sup>+</sup> - CH<sub>2</sub> - OH"}, {"identifier": "D", "content": "$$\... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l86k7rdw/a7b3e192-5689-4f5a-b8bc-53254cdd594f/1b49a240-36e3-11ed-a850-732948a4753a/file-1l86k7rdx.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l86k7rdw/a7b3e192-5689-4f5a-b8bc-53254cdd594f/1b49a240-36e3-11ed-a850-732948a4753a/fi... | mcq | jee-main-2016-offline | 2,510 |
8tG1xfC3NlGemBgA1lBQW | chemistry | hydrocarbons | reaction-of-alkenes | The major product of the following reaction is :
<br/><br/><img src="data:image/png;base64,UklGRtQJAABXRUJQVlA4IMgJAABQeACdASoAA/MAP4G612W2LiwnIjD5ksAwCWlu8SAVuzhrC3+uH+qtX7NftX+Ws73bO7x9Bo0zjzf/96gTOoOrWEJEXCkzouHTa0v0dbSkzouHVrCEiLcX18nL2WZhHv75OXssyNl/fb5OXsszCPf3ycvopy9lmYR7++Tl7LMwj35i+g7++Tl7LMwj398nrWvUoebi0pmo... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l7748aw2/d78b8d60-eff7-4624-bed2-54e3e42ca9e1/298f0020-2365-11ed-8310-29b5e0e1f2bd/file-1l7748aw3.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l7748aw2/d78b8d60-eff7-4624-bed2-54e3e42ca9e1/298... | ["A"] | null | In the given reaction, $$\mathrm{AlCl}_{3}$$ acts as Lewis acid and helps in the generation of the carbocation. The resulting carbocation $$\left(1^{\circ}\right)$$ rearranges itself to stable carbocation $$\left(3^{\circ}\right)$$.<br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l77432at/325ff... | mcq | jee-main-2019-online-10th-january-morning-slot | 2,511 |
YUD8iIqGopDGAM9BpkbdN | chemistry | hydrocarbons | reaction-of-alkenes | The major product of the following reaction is
<br/><br/><img src="data:image/png;base64,UklGRnobAABXRUJQVlA4IG4bAAAQfACdASoAA8IAPm02l0kkIqUhIbNpqKANiWlu4XShG/OH8r/0L8dfAj+7/kr58/iny/+B/rP7R/2z25c0fXRqU/G/th91/L7+5fuF8a96/xn8ivgC/HP5d/bfyR/wX7re5bsmdM/zP7F+wF7c/U/8992Pot/yn5ge4/2I/5HuAf0X+z/7H7gvoDvdqAH9I/r3/a/w3uqfz/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264252/exam_images/jduz7imvuacks72e3gol.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Hydrocarbons Quest... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264821/exam_images/otrbqpsxuiucjif5uneo.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Hydrocarbons Question 102 English Explanation"> | mcq | jee-main-2019-online-12th-january-morning-slot | 2,512 |
GC5TlOhacimCgaXyLsyuW | chemistry | hydrocarbons | reaction-of-alkenes | The major product of the following reaction is –
<br/><br/><img src="data:image/png;base64,UklGRqALAABXRUJQVlA4IJQLAACwbgCdASqeAhoBP4HA2WU2MD+nItHJW/AwCWlu4XCBG/Pt8cf5LwiYcdoL2L7Xm7egA8AWYv+GaPPTDvdjzn/r5P/3r/58EsV18lyL5LkXyXIvkuRfJci+S5F8lwmWy2Wy2W0ZQ/H4/H4/H4/H4/H4/H4/SCrRImEwmEnIr9qy36Oyvnx2bbx05S9gLvWWy2Wy2Wy2Wy2W... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265836/exam_images/m9nypsxqxy1qo6s7qws5.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Quest... | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265274/exam_images/sqvs4ffqgzskdmpgsxaq.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 99 English Explanation"> | mcq | jee-main-2019-online-12th-january-evening-slot | 2,513 |
itX4w5nABnhW9uESmXjTE | chemistry | hydrocarbons | reaction-of-alkenes | Increasing order of reactivity of the following
compounds for S<sub>N</sub>1 substitution is:
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267539/exam_images/xtdk9blmtf4pngbertxq.webp"/><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dc... | [{"identifier": "A", "content": "(A) < (B) < (D) < (C)"}, {"identifier": "B", "content": "(B) < (C) < (D) < (A)"}, {"identifier": "C", "content": "(B) < (A) < (D) < (C)"}, {"identifier": "D", "content": "(B) < (C) < (A) < (D)"}] | ["C"] | null | In S<sub>N</sub>1 substitution reaction, reactivity of compound depends on the stability of carbocation formed in the rate determination step. Reactivity of compound will be more when it's carbocation is more stable.
<br><br><picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/... | mcq | jee-main-2019-online-9th-april-evening-slot | 2,514 |
Z1vaLGdgThZ7lsC7ZI3rsa0w2w9jx52svzv | chemistry | hydrocarbons | reaction-of-alkenes | But-2-ene on reaction with alkaline KMnO<sub>4</sub> at elevated temperature followed by acidification will give :
| [{"identifier": "A", "content": "one molecule of CH<sub>3</sub>CHO and one molecule of CH<sub>3</sub>COOH"}, {"identifier": "B", "content": "2 molecules of CH<sub>3</sub>COOH"}, {"identifier": "C", "content": "<picture><source media=\"(max-width: 320px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734... | ["B"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264234/exam_images/ltquhefbhglsoaaijawv.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267686/exam_images/deo8baq31gc4mb31ay4r.webp"><source media="(max-wid... | mcq | jee-main-2019-online-12th-april-morning-slot | 2,515 |
Y7sh8sIWQvmgtb36nDjgy2xukf2b3cdd | chemistry | hydrocarbons | reaction-of-alkenes | Which of the following compounds produces an optically inactive compound on hydrogenation? | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263544/exam_images/uqmzftypbiowjme1cb7u.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Hydrocarbons Questi... | ["D"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263561/exam_images/i2htw164c7siflzgvq9t.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267722/exam_images/ybgiseq02dtpos4pal37.webp"><source media="(max-wid... | mcq | jee-main-2020-online-3rd-september-morning-slot | 2,517 |
kQuVk8uW9JiSFluTAHjgy2xukevgkhp8 | chemistry | hydrocarbons | reaction-of-alkenes | The major product in the following reaction is :
<img src="data:image/png;base64,UklGRigLAABXRUJQVlA4IBwLAADQRwCdASp4AbkAPm00lkkkIqIhIVF5qIANiWlu/HyY4OtQyv0H/oH4zeA39L/JL0F8Y3jf2D/q/rJVcf8P/He6z9u/i/9K/0X9U/bj4P/vH8M/nv63+jvvX1AvUH9i/hX8w/yv5o+3b9Ef4n4FFbP0r/jXuF9uv8f/N/5R/3f7v57X8h/Q/2c9yPqz/h/Q3/w/8F/mPvt/nv8V4+nff+d... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267478/exam_images/pcxi6zgagh8x6ocpvmf0.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 2nd September Morning Slot Chemistry - Hydrocarbons Questi... | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264360/exam_images/nsbk0k1uig1zkw5jsjjs.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 2nd September Morning Slot Chemistry - Hydrocarbons Question 82 English Explanation"> | mcq | jee-main-2020-online-2nd-september-morning-slot | 2,518 |
EF0kuYV9ZTYprhOfnJ7k9k2k5hlskdw | chemistry | hydrocarbons | reaction-of-alkenes | The major product in the following reaction is:
<img src="data:image/png;base64,UklGRswGAABXRUJQVlA4IMAGAACwLACdASoPAY8APm02lkkkIqKhIRM6eIANiWlu4W8hG/OZ8G/zPs1/rn5M9Zn469tPQCq1L7/65/Nf3C9Sf8bwAXpD/GfzL9pPP1/gNsC7c/4T+Zfz7/YeYn/M+gHckf7z+H/y33S/x/6KeR94l7AH4//x/9E/kv6ge/T/YfxP+k/tH7evmf/lfzf+xfIz+nn+l/jf9Z/Yv5b/XH+uHs6f... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267196/exam_images/vceaheoupc1djsdezgtt.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Hydrocarbons Question... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264513/exam_images/muf0gmb0h1zmzfllrcje.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Hydrocarbons Question 86 English Explanation"> | mcq | jee-main-2020-online-8th-january-evening-slot | 2,519 |
vF4UJ7Sz4o0qmRMAeG1klrg3wjg | chemistry | hydrocarbons | reaction-of-alkenes | Identify products A and B.
<br/><br/><img src="data:image/png;base64,UklGRloUAABXRUJQVlA4IE4UAACwdgCdASoAA7QAPm02l0gkIyKhJLJ6AIANiWlu+F8U/JCGLZaveWf7r2vf6jxH/GvpP9T+ZfJ7iX/M/vH+u/v/ts/nu9H5lagX45/Tv81vLIAf0r+5/r/5G2p94S9gDgtfS/YA/ov+G9FrPb9Y+wx+wPprewD0hSLk0aLTtGX+Dtd5NLmom/iwtwS5GVu3NJzhAGAEHeKs1mk/Z9ebV5u95NPrzavN3vJ... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l9fozkl6/8c7b7e06-4392-4293-9231-9d0e1df70f62/0a6ec5a0-4fb5-11ed-88d9-abb495ae8a3e/file-1l9fozkl7.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l9fozkl6/8c7b7e06-4392-4293-9231-9d0e1df70f62/0a6... | ["B"] | null | In first step, KMnO<sub>4</sub>(dil.) help to break alkene in ketone and aldehyde and in second step, CrO<sub>3</sub> is used for selective over oxidation of aldehyde only. CrO<sub>3</sub> will form aldehyde to acid in product (B).
<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kxhfs6lr/cec4ed... | mcq | jee-main-2021-online-24th-february-morning-slot | 2,522 |
iUkWqMAH0xTL4z6Kp81kltba0ui | chemistry | hydrocarbons | reaction-of-alkenes | The major product of the following reaction is :<br/><br/><img src="data:image/png;base64,UklGRnwHAABXRUJQVlA4IHAHAABwLACdASruAGgAPm0yl0gkIqIhJBJ6mIANiWlu3WBpKJ+ln8L/GTwW/tX5Adiz5G9pfTUqs/gDu5fnP5r5o/p54z8AL0//cv4z+2PiQfyXwX6RegR6xfJP8x/Pf3M/pHo1fy3ea8rb+Ue1n+O/QDyN6An5f/6X9A/YD27P7X+S/3X9P/a58w/73+WfkB9g389/n/+u/kn9//... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263432/exam_images/zwybq0lnaokgpzwjybfw.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 25th February Evening Shift Chemistry - Hydrocarbons Quest... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l3qtcz7m/c7910d1e-b5ba-4fb3-8468-02c4014b1c00/76a27220-df09-11ec-a3bc-a5182a05604f/file-1l3qtcz7n.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l3qtcz7m/c7910d1e-b5ba-4fb3-8468-02c4014b1c00/76a27220-df09-11ec-a3bc-a5182a05604f/fi... | mcq | jee-main-2021-online-25th-february-evening-slot | 2,523 |
1krq6chqc | chemistry | hydrocarbons | reaction-of-alkenes | <img src="data:image/png;base64,UklGRqgZAABXRUJQVlA4IJwZAACwhgCdASr+ARwBPm0ylkkkIqIhIpHKKIANiWlu/HyY4OtQz/0R/jn4/d/P9e/s36+egf4t9D/ZvyH/tv7P++7/Zf070E88f2b+b92t7N/IP6F/sf7L+9HvZ/i/41/NP9f/ZPR/33/0H8e/qfuEem/7h/Iv5//sv7Z6U/9h/AP4/4QFaP9d/LfYI9tvkv9x/i/8v/4X9X85X93/lP9L/8PuB9Y/8d/Iv5R8gP6h/5H+Ofzb/l/v/9a/5z/c/wD+i+dP5v/s... | [{"identifier": "A", "content": "Both compound 'A' and compound 'B' are dicarboxylic acids"}, {"identifier": "B", "content": "Both compound 'A' and compound 'B' are diols"}, {"identifier": "C", "content": "Compound 'A' is diol and compound 'B' is dicarboxylic acid"}, {"identifier": "D", "content": "Compound 'A' is dica... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l2pjmr05/135d466b-a6bd-4b3b-94fc-6d2c1002d58f/6b10e650-ca8a-11ec-ab2b-7960e659c3b6/file-1l2pjmr06.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l2pjmr05/135d466b-a6bd-4b3b-94fc-6d2c1002d58f/6b10e650-ca8a-11ec-ab2b-7960e659c3b6/fi... | mcq | jee-main-2021-online-20th-july-morning-shift | 2,525 |
1krrizbsx | chemistry | hydrocarbons | reaction-of-alkenes | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265724/exam_images/en6ibb2sxpluthdc3iep.webp"/><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265529/exam_images/mjbavpzrwnzbb9imln6c.webp"/><img src="data:image/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265291/exam_images/jwldfdmv8xnytvgelvm7.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 20th July Evening Shift Chemistry - Hydrocarbons Question ... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266575/exam_images/wgt9i3jl43lutpv6f90z.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 20th July Evening Shift Chemistry - Hydrocarbons Question 63 English Explanation"> | mcq | jee-main-2021-online-20th-july-evening-shift | 2,526 |
1krutcjxz | chemistry | hydrocarbons | reaction-of-alkenes | An organic compound 'A' C<sub>4</sub>H<sub>8</sub> on treatment with KMnO<sub>4</sub>/H<sup>+</sup> yields compound 'B' C<sub>3</sub>H<sub>6</sub>O.<br/><br/>Compound 'A' also yields compound 'B' an ozonolysis. Compound 'A' is : | [{"identifier": "A", "content": "2-Methylpropene"}, {"identifier": "B", "content": "1-Methylcyclopropane"}, {"identifier": "C", "content": "But-2-ene"}, {"identifier": "D", "content": "Cyclobutane"}] | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265891/exam_images/ak1yjljsagcui9rp2vj7.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264444/exam_images/a9q3zjz780nclw3nbwxz.webp"><source media="(max-wid... | mcq | jee-main-2021-online-25th-july-morning-shift | 2,527 |
1krxbysly | chemistry | hydrocarbons | reaction-of-alkenes | <img src="data:image/png;base64,UklGRhILAABXRUJQVlA4IAYLAAAwQwCdASrxAWsAPm02mEgkIyKhJXIpeIANiWlu4W0RG/OT8L/yH8cvBz+q/kn4jfm37N+UHpnfxnSgfAHdZ/Efx7+sf6X0u/wH8M8efgDqBepP7R/P/6T/u/636QP9V/E/7H36Gf/1v0AvcX5B/l/4//bf1o86T+u/oHqR9OfYA/Un/X/xb9mPjn+1/o3/PPNM6l/UT4CvzX/wf5P/af1u9+D/U/i/9R/Z73E/MP/U/kv+K+Rj9R/95/JP63+tXy5eyz9p... | [] | null | 2 | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263766/exam_images/y5rwdlgzufnj2xrtfusu.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Hydrocarbons Question 58 English Explanation"><br>The total nu... | integer | jee-main-2021-online-25th-july-evening-shift | 2,528 |
1ktjxfmx4 | chemistry | hydrocarbons | reaction-of-alkenes | For the following sequence of reactions, the correct
products are :<br/><br/><img src="data:image/png;base64,UklGRlAQAABXRUJQVlA4IEQQAACwUgCdASqzAYAAPm00lkekIyIhJPPLCIANiWlu5IgA083b/0e/i/44eDH9i/HL0P8Svlj2a/s3sG/0v8Y6qz4Q82n1i+4fxn+m/6b+y+vH+P/g39Z/1/mj7kvhv2CPTP9s/jH9M/2v9k9OH+O/mf8g79unP+e/lHsBe0nzD/Ffxj+q/9/+7efx/Qf... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266023/exam_images/e6ctfowwk4fgdnfxz43p.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Hydrocarbons Questio... | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264861/exam_images/tnv6uaxhababbhonwqdx.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Hydrocarbons Question 55 English Explanation"> | mcq | jee-main-2021-online-31st-august-evening-shift | 2,529 |
1ktn113za | chemistry | hydrocarbons | reaction-of-alkenes | The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are : | [{"identifier": "A", "content": "2 enantiomers and 2 mesomers"}, {"identifier": "B", "content": "2 identical mesomers"}, {"identifier": "C", "content": "2 enantiomers"}, {"identifier": "D", "content": "1 racemic and 2 enantiomers"}] | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kwm0nqs1/fad75658-bd6f-4f3b-b863-0bff8b60715f/93068c10-51d0-11ec-a174-63e351a3f7d2/file-1kwm0nqs2.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1kwm0nqs1/fad75658-bd6f-4f3b-b863-0bff8b60715f/93068c10-51d0-11ec-a174-63e351a3f7d2/fi... | mcq | jee-main-2021-online-1st-september-evening-shift | 2,530 |
1l549k6lc | chemistry | hydrocarbons | reaction-of-alkenes | <p>Two isomers 'A' and 'B' with molecular formula C<sub>4</sub>H<sub>8</sub> give different products on oxidation with KMnO<sub>4</sub> in acidic medium. Isomer 'A' on reaction with KMnO<sub>4</sub>/H<sup>+</sup> results in effervescence of a gas and gives ketone. The compound 'A' is</p> | [{"identifier": "A", "content": "But-1-ene."}, {"identifier": "B", "content": "cis-But-2-ene."}, {"identifier": "C", "content": "trans-But-2-ene."}, {"identifier": "D", "content": "2-methyl propene."}] | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lc3xvqcx/1c429d41-7d0c-4e07-9dc6-b4c856bde6af/1028fa10-84a3-11ed-9935-c94109650755/file-1lc3xvqcy.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lc3xvqcx/1c429d41-7d0c-4e07-9dc6-b4c856bde6af/1028fa10-84a3-11ed-9935-c94109650755/fi... | mcq | jee-main-2022-online-29th-june-morning-shift | 2,531 |
1l5am2y86 | chemistry | hydrocarbons | reaction-of-alkenes | <p>The product formed in the following reaction.</p>
<p><img src="data:image/png;base64,UklGRvgHAABXRUJQVlA4IOwHAABwaQCdASoAA94AP4HA22Q2MS2movP5csAwCWlu4XNBG/Ph9FWldnD2z+f/S7BwVxJj/6mPv8T/bov0RFwpM6L9ERcKTOi/REXCkzov0PS8F9rUXahyJ4L7WosAanTlgKjmou1DkTwX2tRdqHIpIcieC+1qLtQ5E8F9rEX8jgjIFBzTjv15mUCweatFEXCkzov0RFwpMjW+OW93... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l5bs6o5c/065aae6b-4893-4d85-a7f4-437d0dd63c2f/8b1efc00-fe5d-11ec-b169-b5046c590266/file-1l5bs6o5d.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l5bs6o5c/065aae6b-4893-4d85-a7f4-437d0dd63c2f/8b1... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8mcngp7/3662ae95-c2ce-4c1e-bda4-0c2d4fbdd23e/115631b0-3f92-11ed-af9d-134e99e746ec/file-1l8mcngp8.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8mcngp7/3662ae95-c2ce-4c1e-bda4-0c2d4fbdd23e/115631b0-3f92-11ed-af9d-134e99e746ec/fi... | mcq | jee-main-2022-online-25th-june-morning-shift | 2,534 |
1l5bdhm42 | chemistry | hydrocarbons | reaction-of-alkenes | <p>Which of the following reagents / reactions will convert 'A' to 'B' ?</p>
<p><img src="data:image/png;base64,UklGRhoTAABXRUJQVlA4IA4TAAAwcACdASoAA8oAPm00l0kkIqIhItCZmIANiWlu4XPxG/Nv8jf1rtg/y/5X+I75//MfmL662Uu1D+Tfcv8x/bf8B6sd6/AF/Hv5l/bfzJ/s3Cr2y9AX2w+v/rr5B+pZ4b9gDvwPDR9O9gDxEs731f7CP68/7v14PXj6RoykZ9CmAd5VAJrMJD+l... | [{"identifier": "A", "content": "PCC oxidation"}, {"identifier": "B", "content": "Ozonolysis"}, {"identifier": "C", "content": "BH<sub>3</sub>, H<sub>2</sub>O<sub>2</sub>/<sup>$$-$$</sup>OH followed by PCC oxidation"}, {"identifier": "D", "content": "HBr, hydrolysis followed by oxidation by K<sub>2</sub>Cr<sub>2</sub>O... | ["C"] | null | BH<sub>3</sub>, H<sub>2</sub>O<sub>2</sub>/<sup>–</sup>OH followed by PCC oxidation. <br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8men1a4/3387bbf1-ec61-4dac-a478-dcec4030c866/d7af27c0-3f99-11ed-8593-f506a41bac9c/file-1l8men1a5.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net... | mcq | jee-main-2022-online-24th-june-evening-shift | 2,535 |
1l5c7e0cy | chemistry | hydrocarbons | reaction-of-alkenes | <p>The major product 'A' of the following given reaction has _____________ sp<sup>2</sup> hybridized carbon atoms.</p>
<p><img src="data:image/png;base64,UklGRkQSAABXRUJQVlA4IDgSAABQWwCdASoAA28APm00lkikIqIhIfDa0IANiWlu/FuZcetQyf0U/sv4++DP+U/J3z98HXnb3A9Z3JH19an3yr7Q/kf7j7b/2//JfkX51/FvUI/K/5h/kvzM/s3DigB/KP6Z/2P7542Wo1... | [] | null | 2 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8jq33om/065d2def-ff76-4fc0-815f-72c3b859153d/40f58060-3e20-11ed-a091-c17f46d6a0da/file-1l8jq33on.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8jq33om/065d2def-ff76-4fc0-815f-72c3b859153d/40f58060-3e20-11ed-a091-c17f46d6a0da/fi... | integer | jee-main-2022-online-24th-june-morning-shift | 2,536 |
1ldo169dy | chemistry | hydrocarbons | reaction-of-alkenes | <p>'$$\mathrm{X}$$' is : </p>
<p><img src="data:image/png;base64,UklGRsQIAABXRUJQVlA4ILgIAADQawCdASoAA/oAP4HA12W2MSwnIJQJusAwCWlu/BFYS0AnZ19/rd1NdswwXs1uzP4XKeCvnqASU+uZjzn/6HGyjVi9SmzNlW+yrfZOhKNafesbvWN3rG71jd6xuwiKHiJL//RG4/dFwNN6SCzsHI5pRbTbf5Uyy9+wpNMtZmtenDLFCBRKJzSi2azWazWazan2xLQhGc9/NGJWcRHW5+ga50E29oc6Q/SMurZ... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldobazsv/a350fac4-d7c1-4447-bcb4-3772cc90305e/73a36c00-a3a3-11ed-ba58-bbbbd3e496d9/file-1ldobazsw.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldobazsv/a350fac4-d7c1-4447-bcb4-3772cc90305e/73a... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1ldx5szzd/1dfa9a11-c386-4504-a13f-66cb84e5d108/ff696190-a880-11ed-99b3-79cb23978059/file-1ldx5szze.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1ldx5szzd/1dfa9a11-c386-4504-a13f-66cb84e5d108/ff696190-a880-11ed-99b3-79cb23978059/fi... | mcq | jee-main-2023-online-1st-february-evening-shift | 2,539 |
ldo9kl4l | chemistry | hydrocarbons | reaction-of-alkenes | A hydrocarbon ' $\mathrm{X}$ ' with formula $\mathrm{C}_{6} \mathrm{H}_{8}$ uses two moles of $\mathrm{H}_{2}$ on catalytic hydrogenation of its one mole. On ozonolysis, ' $\mathrm{X}$ ' yields two moles of methane dicarbaldehyde. The hydrocarbon ' $\mathrm{X}$ ' is: | [{"identifier": "A", "content": "hexa-1, 3, 5-triene"}, {"identifier": "B", "content": "cyclohexa-1, 4-diene"}, {"identifier": "C", "content": "cyclohexa - 1,3 - diene"}, {"identifier": "D", "content": "1-methylcyclopenta-1, 4-diene"}] | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lecv71tn/b6f44ebf-4470-4793-b575-e856895b1919/0c21bcb0-b124-11ed-a8fc-b3bd3ab31931/file-1lecv71to.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lecv71tn/b6f44ebf-4470-4793-b575-e856895b1919/0c21bcb0-b124-11ed-a8fc-b3bd3ab31931/fi... | mcq | jee-main-2023-online-31st-january-evening-shift | 2,540 |
1ldr3dhrt | chemistry | hydrocarbons | reaction-of-alkenes | <p>The major products 'A' and 'B', respectively, are</p>
<p><img src="data:image/png;base64,UklGRhgXAABXRUJQVlA4IAwXAABwdgCdASoAA5oAPm00lkkkIqIhIXGKaIANiWlu/FuZcetQxf1I/vXbR/g/y49FfEr6X+eP8zyDYlnyT7kfq/7d/fffB/O99vyX/vvUF/If5l/mvzW4PEAX5V/VP+J/ev3i90j8HzR8QD+g+gH+18KD0T2A/6H/l/Qz/8vMZ9Wf+73Df6D/cv+l67XsK/d/2pRwDu7u7u7u... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldrepx78/5faa880e-6aa9-4dd5-b1eb-404f101a94de/2819f140-a557-11ed-803e-f1576252b48d/file-1ldrepx79.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldrepx78/5faa880e-6aa9-4dd5-b1eb-404f101a94de/281... | ["A"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lepyujfv/d6471a77-4645-465e-8e9a-a24290e5021f/852e72c0-b858-11ed-8195-4f3c56fa1eb5/file-1lepyujfw.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lepyujfv/d6471a77-4645-465e-8e9a-a24290e5021f/852e72c0-b858-11ed-8195-4f3c56fa1eb5... | mcq | jee-main-2023-online-30th-january-morning-shift | 2,541 |
1ldstqqon | chemistry | hydrocarbons | reaction-of-alkenes | <p>17 mg of a hydrocarbon (M.F. $$\mathrm{C_{10}H_{16}}$$) takes up 8.40 mL of the H$$_2$$ gas measured at 0$$^\circ$$C and 760 mm of Hg. Ozonolysis of the same hydrocarbon yields</p>
<p><img src="data:image/png;base64,UklGRhAPAABXRUJQVlA4IAQPAAAwVACdASoAA1wAPm00l0ekIyIhJXMKkIANiWlu/GPYTMQer7RkpGeYv7l20/6To2/U37D+4PriZ... | [] | null | 3 | Moles of hydrocarbon $=\frac{17 \times 10^{-3}}{136}=1.25 \times 10^{-4}$
<br/><br/>
Mole of $\mathrm{H}_{2}$ gas
<br/><br/>
$\Rightarrow 1 \times \frac{8.40}{1000}=\mathrm{n} \times 0.0821 \times 273$
<br/><br/>
$\Rightarrow \mathrm{n}=3.75 \times 10^{-4}$
<br/><br/>
Hydrogen molecule used for 1 molecule of hydrocarbo... | integer | jee-main-2023-online-29th-january-morning-shift | 2,542 |
1ldwsgles | chemistry | hydrocarbons | reaction-of-alkenes | <p>Find out the major products from the following reactions.</p>
<p><img src="data:image/png;base64,UklGRmQUAABXRUJQVlA4IFgUAACwaQCdASoAA3QAPm0ylkgkIqKhJFFKyIANiWlu/HyY3JSHZ11/p5/Tu1D/Efkl6H+M32V7ecpR6/7Z/rv7h7af2T/Ofb36L8Aj8c/lv+X3oEAP5d/XP97/gvVc+X8zPtD7AP9C/uvFT+r/rv8A/8u/0XoSf+v+r/0/7M+336s/9/uJfzv+8fsV7Y3///+fwY9I... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldxinjdt/e9377d03-26b2-4d82-bd0f-8c8d939eb87e/3e390510-a8b3-11ed-a3d7-5b81580a6b38/file-1ldxinjdu.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldxinjdt/e9377d03-26b2-4d82-bd0f-8c8d939eb87e/3e3... | ["B"] | null | Mercuration-demercuration is a Markownikoff ’s addition while hydroboration-oxidation is an anti-Markownikoff ’s addition.
<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1leyq4avb/11a19c1b-ae47-433c-bfbe-d1af7abaf02f/70559880-bd29-11ed-b3fe-cdb5b674c004/file-1leyq4avc.png?format=png" data-orsr... | mcq | jee-main-2023-online-24th-january-evening-shift | 2,543 |
1ldyfxf8l | chemistry | hydrocarbons | reaction-of-alkenes | <p>In the following given reaction, 'A' is</p>
<p><img src="data:image/png;base64,UklGRpQHAABXRUJQVlA4IIgHAACwaQCdASoAAykBP4HA2Ga2L7+noLNpE/AwCWlu/CTwAxEqS7OZXr57s/7OfthlyqpT/+Cd4lxLiXEuJcS4lxLiXEuJcS4lxLiXEuJcGqsDVnDe1I77Shd0gbKHiXEuJcS4lxLiXEuJcS4lxLiXEf6+vl/wba78MPEq3y2/oSHkBjDGGMMYYwxhjDGGMMYYwxhjDGE5HNQCDgFpHOFHsO... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1le045ajg/86cea2e2-435f-4b64-b323-d09c8f66caea/dcf78dc0-aa20-11ed-941f-c1fe7282a96c/file-1le045ajh.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1le045ajg/86cea2e2-435f-4b64-b323-d09c8f66caea/dcf... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1le1mt50o/bf0a80ea-9d95-44fb-9201-aff400ed13e9/a1186280-aaf6-11ed-b086-b1e8db5b8b70/file-1le1mt50p.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1le1mt50o/bf0a80ea-9d95-44fb-9201-aff400ed13e9/a1186280-aaf6-11ed-b086-b1e8db5b8b70/fi... | mcq | jee-main-2023-online-24th-january-morning-shift | 2,544 |
lgnzzu3g | chemistry | hydrocarbons | reaction-of-alkenes | The product formed in the following multistep reaction is :
<br/><br/>
<img src="data:image/png;base64,UklGRtoNAABXRUJQVlA4IM4NAADwmwCdASoAAwkBP4G61mU2LiwnIbBqesAwCWlu/ELYhb0HZ17/sLaP6fafn6VfK39zzDTenn+f/+S5/L//vpvQkL2Og5chwsYKTYG2ZzmJZrh71NEjwFXEHa71lE8WwiwbR6MaHCxgpNgbbz6DWULvwayhd+DWULvuGWNatwNlI2EwRvl6vz1wuuU2GwjOU... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgo79rmr/2ee9fca1-32a7-4a85-ad68-94a462ac29b9/53234730-def8-11ed-ad4a-2fa2e50bb363/file-1lgo79rms.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgo79rmr/2ee9fca1-32a7-4a85-ad68-94a462ac29b9/532... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lgrlcyek/1acdbbf1-a9a6-44a0-b2fd-3421bf033828/c58d96c0-e0d5-11ed-ac7f-75b667b9d8cc/file-1lgrlcyel.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lgrlcyek/1acdbbf1-a9a6-44a0-b2fd-3421bf033828/c58d96c0-e0d5-11ed-ac7f-75b667b9d8cc/fi... | mcq | jee-main-2023-online-15th-april-morning-shift | 2,545 |
1lgq4wwdg | chemistry | hydrocarbons | reaction-of-alkenes | <p>For the given reaction</p>
<p><img src="data:image/png;base64,UklGRrIKAABXRUJQVlA4IKYKAABwkwCdASoAA1IBP4G+2mW2L60nIdDZUsAwCWlu/DqX2+tQ3P2TtVbOztfl/g1G3/x/Q+NtRSqL3wSpi72xBlJ3+2HFZ66C3+hiMyLi7zAEbBRJL1lY7KCQyf6GIzbUUqjARzWz4nR13n4zBmXaAew8XBGkHDeduoyVavieX7gqWoKpb9AQT90I9LyuCKubbGwO5Ow7HdwwOa2fE8v3DSp5fuGBxMEZY89mHQs... | [] | null | 4 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lh1pfuf9/e4422205-258f-4165-8de4-6b469979aed4/90ea8f50-e665-11ed-82d8-cd4856559c60/file-1lh1pfufa.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lh1pfuf9/e4422205-258f-4165-8de4-6b469979aed4/90ea8f50-e665-11ed-82d8-cd4856559c60/fi... | integer | jee-main-2023-online-13th-april-morning-shift | 2,546 |
1lgsz0udv | chemistry | hydrocarbons | reaction-of-alkenes | <p>The number of possible isomeric products formed when 3-chloro-1-butene reacts with $$\mathrm{HCl}$$ through carbocation formation is __________.</p> | [] | null | 4 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1libkdavo/fe44b148-8798-4aa3-acba-514ca1cce5f3/ca6d6a30-ff9d-11ed-bd74-05e0eb917e20/file-1libkdavp.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1libkdavo/fe44b148-8798-4aa3-acba-514ca1cce5f3/ca6d6a30-ff9d-11ed-bd74-05e0eb917e20/fi... | integer | jee-main-2023-online-11th-april-evening-shift | 2,547 |
1lh04xswe | chemistry | hydrocarbons | reaction-of-alkenes | <p>Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of $$\mathrm{O}_{3}$$ per mole of $$(\mathrm{X})$$ and gives one mole each of ethanal and propanone is _________ $$\mathrm{g}~ \mathrm{mol}^{-1}$$<br/><br/> (Molar mass of $$\mathrm{C}: 12 \mathrm{~g} \mathrm{~mol}^{-1}, \mathrm{H}: 1 \mathrm{~g... | [] | null | 70 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1ljeyb1ct/eb01fe40-fdcd-4b8c-ae52-2dedbda08139/dc9684d0-1546-11ee-a085-a368e58ec1a5/file-6y3zli1ljeyb1cu.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1ljeyb1ct/eb01fe40-fdcd-4b8c-ae52-2dedbda08139/dc9684d0-1546-11ee-a0... | integer | jee-main-2023-online-8th-april-morning-shift | 2,548 |
1lh3283kr | chemistry | hydrocarbons | reaction-of-alkenes | <p>In the following reaction, 'B' is</p>
<p><img src="data:image/png;base64,UklGRkIIAABXRUJQVlA4IDYIAABQcgCdASoAA/QAP4HA3GQ2Ma2mo/RY0sAwCWlu/ELYaL0HZ19/rn1OsQPvs893Z7+T/xeiogA+//qAVUPX/j/iGOZTZYZFYSqeRaDLFNlJ36/swCUPoZa2YBKH0MtbMAlD6GLk73UNDBv5OabLeyRxtv0541SSuLrIXsETw+H/XtROaWfM8wHFE5pZ8zzAcUTmlnzPQBBYVD2dsKK0Z+yrDuHl... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lh5ouv7x/ec972675-6206-4b75-94c6-860e279095cd/6c2313d0-e896-11ed-8179-292e62481b94/file-1lh5ouv7y.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lh5ouv7x/ec972675-6206-4b75-94c6-860e279095cd/6c2... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lmjwllng/5f0b8c8f-2413-4c59-b9aa-18dbab8689bb/c17b91c0-5364-11ee-a2ae-cb2b37ab948e/file-6y3zli1lmjwllnh.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lmjwllng/5f0b8c8f-2413-4c59-b9aa-18dbab8689bb/c17b91c0-5364-11ee-a2... | mcq | jee-main-2023-online-6th-april-evening-shift | 2,550 |
lsaonshl | chemistry | hydrocarbons | reaction-of-alkenes | <img src="data:image/png;base64,UklGRiAUAABXRUJQVlA4IBQUAACQcwCdASoAA8gAPm00lkkkIqIhIjGZcIANiWlu4XVRG/OH8x/0vtO/vP5X+gvjw9m+1nrX5K+yTUy+SfbD8b/efbJ/B/8fwP+TX9V6gX47/Pv9BvT9s/QC9Yvn3+w8LL5s9SvsN7AH8+9Au99/B/8f2Av6T/hv2F9jD629AH1b/8P9f8BX87/u//X9eb2F/vF7Nv7rCuPGaUFvQPGaUFvQPGaUFvQPGaUFvQPGaUFtDUWzQeGWhkwYE9oPzJbcd/7GloPp... | [{"identifier": "A", "content": "Malonic acid"}, {"identifier": "B", "content": "Oxalic acid"}, {"identifier": "C", "content": "Succinic acid"}, {"identifier": "D", "content": "Gluconic acid"}] | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsdrvr4f/1237ad9c-1cfe-464b-b1c1-f6a2152a7248/e68802e0-c6ce-11ee-bdc3-a3b4bb15f5f5/file-6y3zli1lsdrvr4g.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsdrvr4f/1237ad9c-1cfe-464b-b1c1-f6a2152a7248/e68802e0-c6ce-11ee-bd... | mcq | jee-main-2024-online-1st-february-evening-shift | 2,551 |
jaoe38c1lsd8qgsn | chemistry | hydrocarbons | reaction-of-alkenes | <p>Major product of the following reaction is -</p>
<p><img src="data:image/png;base64,UklGRtIKAABXRUJQVlA4IMYKAADQvQCdASoAAxACP4HA3GW2MT+nIZU5A/AwCWlu4W2iVmNwvVQLekeHbWw4ZnV8L/5GZL0Svcn/++v8jd2GtSdXGhegcJSimh9hrUnV3Q1qTq7oa1J1dzuxk2tOke6gtYS+m08cfai+T7mpIRbnYBeOniJNrTpHwTFjJtadI+CYsZOJ4sZNrTo93shyAl/4oVJc6LqtWQbGxKtxT... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lse4atug/e68ae74d-529f-466d-afad-3e765711f529/77528180-c6ff-11ee-be30-496b1c29fc5a/file-6y3zli1lse4atuh.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lse4atug/e68ae74d-529f-466d-afa... | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lskmtux6/bc2c6500-3d0c-481b-9dcd-934c6548bf27/a0bfa9b0-ca94-11ee-9a3e-d72ae7e965b7/file-6y3zli1lskmtux7.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lskmtux6/bc2c6500-3d0c-481b-9dcd-934c6548bf27/a0bfa9b0-ca94-11ee... | mcq | jee-main-2024-online-31st-january-evening-shift | 2,552 |
jaoe38c1lsfjc2c9 | chemistry | hydrocarbons | reaction-of-alkenes | <p>Identify product A and product B :</p>
<p><img src="data:image/png;base64,UklGRkIIAABXRUJQVlA4IDYIAACwbwCdASoAAxYBP4HA2WU2MD+nIjEpU/AwCWlu4W2lJmNwvV6VtP7PTs1l0W//P3knvP0poIW+TH1BD6gh9QQ+TjAcLM1594XJj6gh9QFgtGBTSrYjd90YFNKth+KCRhfC0rRK9UOmIKPuDu9l5STQYLRNGz6/OX3RgU0q2I3fdCSnEPRL4I8ko8Fz3Z8K2ULaJRO5GHn2EGzFxphVb6Qiekc... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsfmgz95/3eb9c77d-afa0-46b7-a2e9-6be3d76b1a23/4f543690-c7d3-11ee-a6e7-91ff3070e761/file-6y3zli1lsfmgz96.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lsfmgz95/3eb9c77d-afa0-46b7-a2e... | ["A"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lt2iou3w/986e5708-bdc8-4cf9-8878-6dc2c2cd0bea/8c3f3ac0-d46a-11ee-9398-959420dc8e1b/file-1lt2iou3x.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lt2iou3w/986e5708-bdc8-4cf9-8878-6dc2c2cd0bea/8c3f3ac0-d46a-11ee-9398-959420dc8e1b... | mcq | jee-main-2024-online-29th-january-morning-shift | 2,553 |
jaoe38c1lsfjosx2 | chemistry | hydrocarbons | reaction-of-alkenes | <p>The final product A formed in the following multistep reaction sequence is</p>
<p><img src="data:image/png;base64,UklGRqoLAABXRUJQVlA4IJ4LAAAQegCdASoAA9wAP4G01WU2LKunIzDKQsAwCWlu4WmC4mNwur5s73eJjZ0dqsv83r6K0nF7O//vf+DRjvAt2n8BZU+xj36HhU5t8G/R7/KhjQN+WPfo9/lQxoG7Vty+72fswVJql8taJpisafiG03s5kHzPmLAZbIe1V7IE6w2x+iTDE2O... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsfmnrzb/01cea061-a5d2-4a6d-822a-42c599534c58/0c5fe770-c7d4-11ee-a6e7-91ff3070e761/file-6y3zli1lsfmnrzc.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lsfmnrzb/01cea061-a5d2-4a6d-822... | ["A"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lt2m8ip9/97f6cb93-984b-4fc0-9e3b-b29dd0934340/6b0185d0-d478-11ee-8391-6700b82c09de/file-1lt2m8ipa.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lt2m8ip9/97f6cb93-984b-4fc0-9e3b-b29dd0934340/6b0185d0-d478-11ee-8391-6700b82c09de... | mcq | jee-main-2024-online-29th-january-morning-shift | 2,554 |
jaoe38c1lsfk330e | chemistry | hydrocarbons | reaction-of-alkenes | <p><img src="data:image/png;base64,UklGRvwXAABXRUJQVlA4IPAXAACwgwCdASoAA7QAPm02l0gkIyKhJHHaWIANiWlu/HA5cetQx/1C/uv9P7n/8N/benw9We5vLk6081P5P9m/4f9a9t/8d/qfC35a/5nqBfkn87/3W87gC/T/6b/1v8L4+mpN4s9gDyl/7XhM/kP+h7An6c9XX+2/bX0E/Wn7VfAf+vHpt+wb96vZmI0uArrEQ86D5KIrCi2oUsg43Bv5ZAmnoxABo8kia9FaDJiRUGTEioMmJFQZMSKgwBYGk5R8J5JmS... | [] | null | 1 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lt2ro1zl/f370ee31-5c58-4ed7-9d52-52c94252fe87/a8b00810-d48d-11ee-9383-19a774a872fb/file-1lt2ro1zm.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lt2ro1zl/f370ee31-5c58-4ed7-9d52-52c94252fe87/a8b00810-d48d-11ee-9383-19a774a872fb... | integer | jee-main-2024-online-29th-january-morning-shift | 2,555 |
1lsg7xgnj | chemistry | hydrocarbons | reaction-of-alkenes | <p>Products A and B formed in the following set of reactions are</p>
<p><img src="data:image/png;base64,UklGRqwRAABXRUJQVlA4IKARAABQYgCdASoAA5UAPm0ylkkkIqIhIvBpwIANiWlu4XMk/mNwqh5E/vf8K7if8p+VnXVexPbbksRL/kP25/N/2X2xfxvfL8r/8P1Avyj+Uf5j7dvUx2aG1eYL6xfT/91/ePGa1GvC3sAeYPfJUBv51/h/QnzzPUnsF/zr+6f8n+7dn/0nRsSG0qGQgJUOtlQy... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lshjxp9v/382889ce-3795-4d1d-9867-a26b411f6df8/f6495830-c8e2-11ee-8501-bb04786aa212/file-6y3zli1lshjxp9w.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lshjxp9v/382889ce-3795-4d1d-986... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lspv5fj5/f56a5bd1-a9f8-40e4-b99d-381a97da736c/16d99510-cd75-11ee-9be1-85ca54b9efcb/file-6y3zli1lspv5fj6.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lspv5fj5/f56a5bd1-a9f8-40e4-b99d-381a97da736c/16d99510-cd75-11ee-9b... | mcq | jee-main-2024-online-30th-january-evening-shift | 2,556 |
1lsgyasal | chemistry | hydrocarbons | reaction-of-alkenes | <p>In the given reactions, identify the reagent A and reagent B.</p>
<p><img src="data:image/png;base64,UklGRmINAABXRUJQVlA4IFYNAACwfACdASoAA9YAP4G41GU2LbcnIbOquuAwCWlu/CX3oetQ2P1873v8pj52dPZ/viNv4356ANAT7r0wccUeS//e/48v8bruUiOZNENAENeyUvUAhzBt1VeTsp3qq8nZTvVV5OyneqrydlNpXFC6Z76aatt24uthmEU+oqDVGwFimqnCSZmnplZeCzrBJZ2N... | [{"identifier": "A", "content": "$$\\mathrm{A}-\\mathrm{CrO}_3 \\quad \\mathrm{~B}-\\mathrm{CrO}_3$$\n"}, {"identifier": "B", "content": "$$\\mathrm{A}-\\mathrm{CrO}_3 \\quad \\mathrm{~B}-\\mathrm{CrO}_2 \\mathrm{Cl}_2$$\n"}, {"identifier": "C", "content": "A- $$\\mathrm{CrO}_2 \\mathrm{Cl}_2 \\quad \\mathrm{~B}-\\math... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsqmmg9q/854c206c-9c53-4c9b-89b8-1b7312f866e3/86a9d6f0-cde0-11ee-a0d3-7b75c4537559/file-6y3zli1lsqmmg9r.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsqmmg9q/854c206c-9c53-4c9b-89b8-1b7312f866e3/86a9d6f0-cde0-11ee-a0... | mcq | jee-main-2024-online-30th-january-morning-shift | 2,557 |
lv2es465 | chemistry | hydrocarbons | reaction-of-alkenes | <p><img src="data:image/png;base64,UklGRtAHAABXRUJQVlA4IMQHAABwXQCdASoAA9MAP4G01WY2LCunIfB5UsAwCWlu4WxhG/Pn87Wd9nf2RywwjnLC/bNNHGem9yedejNXZhRKyDPv5wqPaS6BSUKBSCNJ2mQcZrhgxqT6VTHx1pVFvqcYwME9EqeaYL3IZqQB6uBlTujuoipccHr2eEJBZ6w5TMHEDyefPEO9TrjFKLxTV/rVELnp1aBRXVsjay4yW4E6sQxTGiAdApKEkFDAp42O67Yhe2NUAZ+oYP5LdxRV7dYgXEoRQ... | [{"identifier": "A", "content": "$$\\mathrm{H}_2 \\mathrm{O}, \\mathrm{H}^{+}$$ and $$\\mathrm{NaOH}_{(\\mathrm{alc})} / \\mathrm{I}_2$$\n"}, {"identifier": "B", "content": "$$\\mathrm{O}_3, \\mathrm{Zn} / \\mathrm{H}_2 \\mathrm{O}$$ and $$\\mathrm{KMnO}_4$$\n"}, {"identifier": "C", "content": "$$\\mathrm{H}_2 \\mathrm... | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwhsj4bv/742dae83-a396-46b1-8a48-bf45d27c370a/707517b0-1835-11ef-9081-0ded966256d8/file-1lwhsj4bw.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwhsj4bv/742dae83-a396-46b1-8a48-bf45d27c370a/707517b0-1835-11ef-9081-0ded966256d8... | mcq | jee-main-2024-online-4th-april-evening-shift | 2,559 |
OR4TrBhIdxazt1Iy | chemistry | hydrocarbons | reaction-of-alkynes | Which of these will not react with acetylene ? | [{"identifier": "A", "content": "NaOH"}, {"identifier": "B", "content": "ammonical AgNO<sub>3</sub>\n "}, {"identifier": "C", "content": "Na"}, {"identifier": "D", "content": "HCl"}] | ["A"] | null | Acetylene reacts with the other three as :
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264334/exam_images/mfryqlsfhy2tpqhoamwm.webp" loading="lazy" alt="AIEEE 2002 Chemistry - Hydrocarbons Question 135 English Explanation"> | mcq | aieee-2002 | 2,560 |
WSTuR3sLMiCXMB7g | chemistry | hydrocarbons | reaction-of-alkynes | What is the product when acetylene reacts with hypochlorous acid ? | [{"identifier": "A", "content": "CH<sub>3</sub>COCI"}, {"identifier": "B", "content": "ClCH<sub>2</sub>CHO"}, {"identifier": "C", "content": "Cl<sub>2</sub>CHCHO"}, {"identifier": "D", "content": "ClCHCOOH"}] | ["C"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266735/exam_images/ukltyq1hvqmwtlkaqa95.webp" loading="lazy" alt="AIEEE 2002 Chemistry - Hydrocarbons Question 134 English Explanation"> | mcq | aieee-2002 | 2,561 |
lkk68ldp | chemistry | hydrocarbons | reaction-of-alkynes | Acetylene does not react with : | [{"identifier": "A", "content": "$\\mathrm{Na}$"}, {"identifier": "B", "content": "ammoniacal $\\mathrm{AgNO}_3$"}, {"identifier": "C", "content": "$\\mathrm{HCl}$"}, {"identifier": "D", "content": "$\\mathrm{NaOH}$"}] | ["D"] | null | 1. Acetylene reacts with sodium :
<br/><br/>$$\mathrm{2CH} \equiv \mathrm{CH} + 2\mathrm{Na} \longrightarrow 2\mathrm{CH} \equiv \mathrm{C}^{-}\mathrm{Na}^{+} + \mathrm{H}_2$$
<br/><br/> Here, acetylene reacts with sodium to produce sodium acetylide and hydrogen gas.
<br/><br/>2. Acetylene reacts with ammoniacal ... | mcq | aieee-2002 | 2,562 |
OKLyIwI4cqJQbksy | chemistry | hydrocarbons | reaction-of-alkynes | In the following sequence of reactions, the alkene affords the compound ‘B’ <br/>
CH<sub>3</sub> - CH = CH - CH<sub>3</sub> $$\buildrel {{O_3}} \over
\longrightarrow $$ A $$\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Zn}^{H{}_2O}} $$ B<br/>
The compound B is | [{"identifier": "A", "content": "CH<sub>3</sub>CH<sub>2</sub>CHO "}, {"identifier": "B", "content": "CH<sub>3</sub>COCH<sub>3</sub>"}, {"identifier": "C", "content": "CH<sub>3</sub>CH<sub>2</sub>COCH<sub>3</sub>"}, {"identifier": "D", "content": "CH<sub>3</sub>CHO"}] | ["D"] | null | Completing the sequence of given reactions,
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266729/exam_images/rf2p0ml0bk0dejxxhbyn.webp" loading="lazy" alt="AIEEE 2008 Chemistry - Hydrocarbons Question 124 English Explanation">
<br><br>Thus $$'B'\,\,$$ is $$\,\,C{H_3}C... | mcq | aieee-2008 | 2,564 |
yAYoC2i4YOD32txF | chemistry | hydrocarbons | reaction-of-alkynes | The treatment of $$C{H_3}MgX\,\,$$ with $$C{H_3}C \equiv C - H$$ produces | [{"identifier": "A", "content": "$$C{H_3} - CH = C{H_2}$$ "}, {"identifier": "B", "content": "$$C{H_3}C \\equiv C - C{H_3}$$ "}, {"identifier": "C", "content": "<img class=\"question-image\" src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264334/exam_images/dkphxngsvtpppf1q2ylp.webp\" loading=\"lazy\" alt=... | ["D"] | null | Writing the reaction we get
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266219/exam_images/rlrun53dtxo4g1klmaw7.webp" loading="lazy" alt="AIEEE 2008 Chemistry - Hydrocarbons Question 115 English Explanation">
<br><br>So we find that $$C{H_4}$$ is produced in this rea... | mcq | aieee-2008 | 2,565 |
MjCtO8sCU6fKyleK | chemistry | hydrocarbons | reaction-of-alkynes | Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the
presence of : | [{"identifier": "A", "content": "a vinyl group"}, {"identifier": "B", "content": "an isopropyl group "}, {"identifier": "C", "content": "an acetylenic triple bond"}, {"identifier": "D", "content": "two ethylenic double bonds"}] | ["A"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264413/exam_images/rzbl7npwbjffqjpcle5j.webp" loading="lazy" alt="AIEEE 2011 Chemistry - Hydrocarbons Question 122 English Explanation 1">
<br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734... | mcq | aieee-2011 | 2,566 |
87dWb2mHmAAnL6oz | chemistry | hydrocarbons | reaction-of-alkynes | 2–Hexyne gives trans–2–Hexene on treatment with : | [{"identifier": "A", "content": "Pt/H<sub>2</sub>"}, {"identifier": "B", "content": "Li/NH<sub>3</sub>"}, {"identifier": "C", "content": "Pd/BaSO<sub>4</sub>"}, {"identifier": "D", "content": "LiAlH<sub>4</sub>"}] | ["B"] | null | Anti addition of hydrogen atoms to the the triple bond occurs when alkynes are reduced with sodium (or lithium) metal in ammonia, ethylamine, or alcohol at low temperatures. This reaction called, a dissolving metal reduction, produces an $$(E)$$- or $$trans$$-alkene.
<br><br>Sodium in liq. $$N{H_3}$$ is used as a sour... | mcq | aieee-2012 | 2,567 |
1uaQNK5V7rC9P6SpYY4hI | chemistry | hydrocarbons | reaction-of-alkynes | The major product of the following reaction is :
<br/><br/><img src="data:image/png;base64,UklGRrQHAABXRUJQVlA4IKgHAABwaQCdASoAAzkBP4HA12a2L6wnoPJo+sAwCWlu4XPxG/Pt9Adpf+s2zPCWNCKNeEaJyyof2ZliPO+FMdbM+8Occ4tA5zUhHK24feHOOcc45xzjnHOOcc45xzjnHOONKUsw8S4lxLiXEuJcS4lxLiXEuJcS4kGVaMjLZn3hzjnHOOcc45xzjnHOOcc4tkUdflxLiXEuJcS4l... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265583/exam_images/tgk1xuous6ycccwwzqc5.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Hydrocarbons Question... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l3ofn606/1aa020a8-83cf-4c5b-be06-d9a71cfb463a/40dddc60-ddba-11ec-b7c7-a7ac6d9334e0/file-1l3ofn607.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l3ofn606/1aa020a8-83cf-4c5b-be06-d9a71cfb463a/40dddc60-ddba-11ec-b7c7-a7ac6d9334e0/fi... | mcq | jee-main-2017-online-9th-april-morning-slot | 2,568 |
ugGmqO369D7DD7QvWg2nO | chemistry | hydrocarbons | reaction-of-alkynes | The major product of the following reaction is :
<br/><br/><img src="data:image/png;base64,UklGRnQLAABXRUJQVlA4IGgLAAAwuwCdASoAA9cBP4HA3WS2Ma4nIlTpCsAwCWlu4WjxG/Pt9V/6r1lEIu1aHZ82/vzpj4APv/6P1U33Nf//qt+/w8XIcWeLfcF7gvcF7gvcF7gvcF7gvcF5BBMQm4doq4NN/X5NPFEH9isZreHMOKtujnjRbP1bNaIdXLhn5X+CelWktKmau7ZZfaO3Fs+Y5L+Scl4w0T2O... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l8g4b8dq/cdc49ac8-9de0-4d79-9651-9eea84bccc7f/c04574e0-3c24-11ed-8acd-3bfc6080b9d7/file-1l8g4b8dr.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l8g4b8dq/cdc49ac8-9de0-4d79-9651-9eea84bccc7f/c04... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8g4dcve/1d84aa7f-8dc7-4c77-b9eb-f4455f719024/fb5bcca0-3c24-11ed-8acd-3bfc6080b9d7/file-1l8g4dcvf.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8g4dcve/1d84aa7f-8dc7-4c77-b9eb-f4455f719024/fb5bcca0-3c24-11ed-8acd-3bfc6080b9d7/fi... | mcq | jee-main-2018-online-16th-april-morning-slot | 2,569 |
qtLXWIkmrkVi33znUIqhG | chemistry | hydrocarbons | reaction-of-alkynes | The major product of the following reaction is :<br/>
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264846/exam_images/i2juikicmhrmaag7r57m.webp"/><img src="data:image/png;base64,UklGRqIMAABXRUJQVlA4IJYMAAAQXwCdASqoAr8APm02mkikIyKhIzRpEIANiWlu+F6ouuABnZ10/pP/... | [{"identifier": "A", "content": "CH<sub>3</sub>CD<sub>2</sub>CH(Cl)(I)"}, {"identifier": "B", "content": "CH<sub>3</sub>CD(Cl)CHD(I)"}, {"identifier": "C", "content": "CH<sub>3</sub>C(I)(Cl)CHD<sub>2</sub>"}, {"identifier": "D", "content": "CH<sub>3</sub>CD(I)CHD(Cl)"}] | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lkk4ttbn/e0b06723-6d2a-4a3d-99ab-8efef20e7586/80283920-2bec-11ee-a8eb-4b6d21074d15/file-6y3zli1lkk4ttbo.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lkk4ttbn/e0b06723-6d2a-4a3d-99ab-8efef20e7586/80283920-2bec-11ee-a8... | mcq | jee-main-2019-online-9th-april-morning-slot | 2,570 |
5ZGoNa7UJTi1j69DDe3rsa0w2w9jx53hn0y | chemistry | hydrocarbons | reaction-of-alkynes | The major product of the following addition reaction is :
<br/>H<sub>3</sub>C–CH=CH<sub>2</sub> $$\buildrel {C{l_2}/{H_2}O} \over
\longrightarrow $$ | [{"identifier": "A", "content": "<picture><source media=\"(max-width: 320px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266301/exam_images/e3smcydvv8qaay1adwvw.webp\"><img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267801/exam_images/ufsjk28eeuvvuero9kbb.webp\" style=\"max-width... | ["B"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265875/exam_images/lqnyurwjro8xjen4j8m8.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265814/exam_images/i0ikhgtg7kc6nm60ynov.webp"><source media="(max-wid... | mcq | jee-main-2019-online-12th-april-morning-slot | 2,571 |
B6rnc3FnyhJQQheeoU7k9k2k5hm9f0t | chemistry | hydrocarbons | reaction-of-alkynes | In the following sequence of reactions the
maximum number of atoms present in
molecule 'C' in one plane is _________.
<img src="data:image/png;base64,UklGRuQJAABXRUJQVlA4INgJAABQOwCdASr0AVYAPm02mEgkIyKhJdZpYIANiWlu/HyYbOtQzP08/j3bN/aujw8ge0fp2Va/8V23HxH8l/s//F9L/73/KP6N5U+7P9N9Q71H/lv47/XPLv/kO6LAH+Y/zH/Nfxj+m/rb51v7z/... | [] | null | 13 | As A is a lowest molecular weight alkyne. So A is H - C $$ \equiv $$ C - H.
<img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264068/exam_images/hu6u7x0s5b6riwintgeo.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 8th January Evening Sl... | integer | jee-main-2020-online-8th-january-evening-slot | 2,574 |
6lxpqlBGGAgzHpffeZ1klscckw5 | chemistry | hydrocarbons | reaction-of-alkynes | Consider the following chemical reaction.<br/><br/><img src="data:image/png;base64,UklGRmwMAABXRUJQVlA4IGAMAAAQPQCdASqtAT4APm00lUekIyIhJlVbCIANiWlu/HvvPG198i/wDtO/r34/ehP4r87/evyi/sG703z/3j+bftx6X/33+jeKvuh/jP4B7BHpX/Cf079y/PH/e/4p3XQAPyL+Pf4H+d/3n/pf2LzjP5D+l+o/05/sX5Y/QB+o3+R/oP7kf235Z/wH6RfxTzRfD/YD/mn9K/w38g/rn/F/w... | [] | null | 7 | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264767/exam_images/w2lidv45898xilzlhwvh.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266687/exam_images/hahfaf9yapfwthvlm4hl.webp"><img src="https://res.c... | integer | jee-main-2021-online-25th-february-morning-slot | 2,575 |
ditAYlp468Ihw58lXJ1kmhtjw42 | chemistry | hydrocarbons | reaction-of-alkynes | Which of the following is Lindlar catalyst? | [{"identifier": "A", "content": "Partially deactivated palladised charcoal"}, {"identifier": "B", "content": "Zinc chloride and HCl"}, {"identifier": "C", "content": "Sodium and Liquid NH<sub>3</sub>"}, {"identifier": "D", "content": "Cold dilute solution of KMnO<sub>4</sub>"}] | ["A"] | null | Lindlar's catalyst $$ \Rightarrow $$ Pd/CaCO<sub>3</sub> + (CH<sub>3</sub>COO)<sub>2</sub> Pb + quinolene | mcq | jee-main-2021-online-16th-march-morning-shift | 2,576 |
Gb8Z7p5W51tXHm4AvD1kmiry11k | chemistry | hydrocarbons | reaction-of-alkynes | An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammonical silver nitrate forms a bright silver mirror along the sides of the test tube. The unsaturated hydrocarbon X is : | [{"identifier": "A", "content": "HC $$ \\equiv $$ C $$-$$ CH<sub>2</sub> $$-$$ CH<sub>3</sub>"}, {"identifier": "B", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265922/exam_images/xampbxr7zhmewpjtcckw.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=... | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266470/exam_images/segwitmxbcqqwbkpm034.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 16th March Evening Shift Chemistry - Hydrocarbons Question 68 English Explanation"> | mcq | jee-main-2021-online-16th-march-evening-shift | 2,577 |
1krrhtybh | chemistry | hydrocarbons | reaction-of-alkynes | Metallic sodium does not react normally with : | [{"identifier": "A", "content": "gaseous ammonia"}, {"identifier": "B", "content": "But-2-yne"}, {"identifier": "C", "content": "Ethyne"}, {"identifier": "D", "content": "tert-butyl alcohol"}] | ["B"] | null | Metallic sodium does not react with 2-butyne because 2-butyne does not have acidic hydrogen. | mcq | jee-main-2021-online-20th-july-evening-shift | 2,578 |
1l56xwjwn | chemistry | hydrocarbons | reaction-of-alkynes | <p>What will be the major product of following sequence of reactions?</p>
<p> <img src="data:image/png;base64,UklGRgIJAABXRUJQVlA4IPYIAACQfACdASoAA/EAP4G+2mQ2MCymotJ5ysAwCWlu/A04putQ2v10/2lr7Z8dwuJQguq/+a5//r5a1N//+q47mVDIQEqNwXbUq/DHXHE8vkqoLtqWgRcXr8u2paBKjXoV4R/pMXdtMV4R/GgDnN5kK+FFZFJwnC8CVwvET7J7pMN09FPPk6eWmbnLke... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l58nehg3/92cf5cf9-0bd0-4306-88d2-24f2a563ff7f/7cd2d230-fca4-11ec-af50-7b1dc1e93a30/file-1l58nehg4.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l58nehg3/92cf5cf9-0bd0-4306-88d2-24f2a563ff7f/7cd... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l9bnkvw4/384590a1-e47f-4897-8d2b-3211c22d4019/664d0340-4d7c-11ed-8be8-3ff328877179/file-1l9bnkvw5.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l9bnkvw4/384590a1-e47f-4897-8d2b-3211c22d4019/664d0340-4d7c-11ed-8be8-3ff328877179/fi... | mcq | jee-main-2022-online-27th-june-evening-shift | 2,579 |
1ldoimizo | chemistry | hydrocarbons | reaction-of-alkynes | <p>But-2-yne is reacted separately with one mole of Hydrogen as shown below :</p>
<p><img src="data:image/png;base64,UklGRuwRAABXRUJQVlA4IOARAADwYgCdASoAA30APm02l0gkIyKhJNOqWIANiWlu/ELY+sADOzro/TX+8fjN4Ef5XxB8X/q/2o4/L2v22/Leur93/0nhj6svUL/Iv5X/m/tV4h2bD1BfW76Z/tvSJ+u8z/sv7AH8+/uHF2+dewH/L/9b6H//p91XuG+q/2j+BX+d/3b/s9i... | [{"identifier": "A", "content": "A and B only"}, {"identifier": "B", "content": "A, C & D only"}, {"identifier": "C", "content": "B, C & D only"}, {"identifier": "D", "content": "C and D only"}] | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1leywsbat/0f041d5f-eac1-4098-ae93-83ee6789dd05/82dcf290-bd43-11ed-925b-0b030bfa420d/file-1leywsbay.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1leywsbat/0f041d5f-eac1-4098-ae93-83ee6789dd05/82dcf290-bd43-11ed-925b-0b030bfa420d/fi... | mcq | jee-main-2023-online-1st-february-morning-shift | 2,580 |
lsanxx7f | chemistry | hydrocarbons | reaction-of-alkynes | In the given reactions identify $A$ and $B$
<br/><br/><img src="data:image/png;base64,UklGRhYMAABXRUJQVlA4IAoMAACwfwCdASoAA+sAP4G21WW2LSunIVCaIsAwCWlu8VycjzPuAkcy/4fQ2L6X/2eHaPK7hi8QZo0PJf/wmi62VamHZUcOiZK243Eai+8Ii39095gsiTdRkIGDh0YCcRRUvdHj6ciEMVwKu7lVUc7uuxn/OOQf3BkHrDFeliCbG3jzEMj1Khvd67cT39ggzp58mrTjqaHxufR7x5jvSU... | [{"identifier": "A", "content": "A : n-Pentane\u00a0\u00a0\u00a0\u00a0B : Cis - 2 - butene"}, {"identifier": "B", "content": "A : 2-Pentyne\u00a0\u00a0\u00a0\u00a0\u00a0B : Cis-2-butene"}, {"identifier": "C", "content": "A : n-Pentane\u00a0\u00a0\u00a0\u00a0\u00a0B : trans-2-butene"}, {"identifier": "D", "content": "A ... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsdoli42/241cb600-22a0-439b-b855-371f809494ba/0e17cd20-c6c2-11ee-8e15-4779d13ce79c/file-6y3zli1lsdoli43.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsdoli42/241cb600-22a0-439b-b855-371f809494ba/0e17cd20-c6c2-11ee-8e... | mcq | jee-main-2024-online-1st-february-evening-shift | 2,581 |
1lsgxurp8 | chemistry | hydrocarbons | reaction-of-alkynes | <p>Compound A formed in the following reaction reacts with B gives the product C. Find out A and B.</p>
<p><img src="data:image/png;base64,UklGRuAOAABXRUJQVlA4INQOAACwTACdASoAA1kAPm00l0gkIqIhJVFp+IANiWlu4XSOABnZ12/pz/X+07/Hf2rp1PVnt1ylOmfNb+V/aT9t/b/QzvJ+L2oL68/1G9ZgB/Ov6f/1/Bh/sfRf7F/7f3AOBv8q9gP+e/5b1Z/7n/4eYz6w9hH9h... | [{"identifier": "A", "content": "$$\\mathrm{A}=\\mathrm{CH}_3-\\mathrm{C} \\equiv \\stackrel{-}{\\mathrm{C}} \\mathrm{Na}^{+}, \\mathrm{B}=\\mathrm{CH}_3-\\mathrm{CH}_2-\\mathrm{CH}_2-\\mathrm{Br}$$"}, {"identifier": "B", "content": "$$\\mathrm{A}=\\mathrm{CH}_3-\\mathrm{CH}=\\mathrm{CH}_2, \\mathrm{~B}=\\mathrm{CH}_3-... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsqmv8mz/e1f8fe76-73a0-4574-a78c-54c230b5349a/7b0cb4b0-cde1-11ee-a0d3-7b75c4537559/file-6y3zli1lsqmv8n0.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsqmv8mz/e1f8fe76-73a0-4574-a78c-54c230b5349a/7b0cb4b0-cde1-11ee-a0... | mcq | jee-main-2024-online-30th-january-morning-shift | 2,582 |
lvc58esl | chemistry | hydrocarbons | reaction-of-alkynes | <p>The major products from the following reaction sequence are product A and product B.</p>
<p><img src="data:image/png;base64,UklGRhQSAABXRUJQVlA4IAgSAABwYQCdASoAA4YAPm00lkikIqIhItDqeIANiWlu+Dz0/JIWLZbA+U/7J2r/4f8qvQfxf+o/cflR9YeZv8f+wf6X+1+enenwCPyL+gf5XxUdkzbT0C/Y/61/u/Cv1He+XsA/mhxvtAX+j/4j1Z/7L/4f7bz7/Uv/u9w3+d/3D... | [] | null | 8 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwd95hgd/bd3d16ba-34d9-4d91-b3c8-c5db438e6d2d/85374dc0-15b6-11ef-8f21-b95769ba70d3/file-1lwd95hge.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwd95hgd/bd3d16ba-34d9-4d91-b3c8-c5db438e6d2d/85374dc0-15b6-11ef-8f21-b95769ba70d3... | integer | jee-main-2024-online-6th-april-morning-shift | 2,584 |
c3vmcQ1iVZostSCZ | chemistry | hydrogen | hard-and-soft-water | Which one of the following process will produce hard water? | [{"identifier": "A", "content": "Saturation of water with MgCO<sub>3</sub>"}, {"identifier": "B", "content": "Saturation of water with CaSO<sub>4</sub>"}, {"identifier": "C", "content": "Addition of Na<sub>2</sub>SO<sub>4</sub> to water"}, {"identifier": "D", "content": "Saturation of water with CaCO<sub>3</sub>"}] | ["B"] | null | Permanent hardness of water is due to chlorides and sulphates of calcium and magnesium i.e. $$CaC{l_2},CaS{O_4},MgC{l_2}\,$$ and $$\,\,MgS{O_4}.$$ | mcq | aieee-2003 | 2,585 |
kOa1aT8CRLRZ215l0FAUI | chemistry | hydrogen | hard-and-soft-water | The temporary hardness of water is due to : | [{"identifier": "A", "content": "Na<sub>2</sub>SO<sub>4</sub>"}, {"identifier": "B", "content": "NaCl"}, {"identifier": "C", "content": "Ca(HCO<sub>3</sub>)<sub>2</sub>"}, {"identifier": "D", "content": "CaCl<sub>2</sub>"}] | ["C"] | null | Ca(HCO<sub>3</sub>)<sub>2</sub> is responsible for temporary hardness of water. | mcq | jee-main-2019-online-9th-january-evening-slot | 2,586 |
NQGlTHHx9VEEWpXPmf4hW | chemistry | hydrogen | hard-and-soft-water | 100 mL of a water sample contains 0.81 g of calcium bicrabonate and 0.73 g of magnesium
bicarbonate. The hardness of this water sample expressed in terms of equivalents of CaCO<sub>3</sub> is :
(Molar mass of calcium bicarbonate is 162 g mol<sup>–1</sup> and magnesium bicarbonate is 146 g mol<sup>–1</sup>) | [{"identifier": "A", "content": "1,000 ppm"}, {"identifier": "B", "content": "100 ppm"}, {"identifier": "C", "content": "10,000 ppm"}, {"identifier": "D", "content": "5,000 ppm"}] | ["C"] | null | Here hardness of water is expressed in terms of CaCO<sub>3</sub>.
<br><br>$$ \therefore $$ Equivalent of CaCO<sub>3</sub>
<br><br>= Equivalent of Ca(HCO<sub>3</sub>)<sub>2</sub> + Equivalent of Mg(HCO<sub>3</sub>)<sub>2</sub>
<br><br>$$ \Rightarrow $$ 2 $$ \times $$ $${W \over {100}}$$ = $${{0.81} \over {162}} \times 2... | mcq | jee-main-2019-online-8th-april-morning-slot | 2,587 |
6iRo5dnzEeuyoRpq0c3rsa0w2w9jx96rnbl | chemistry | hydrogen | hard-and-soft-water | The temporary hardness of a water sample is due to compound X. Boiling this sample converts X to
compound Y. X and Y, respectively, are : | [{"identifier": "A", "content": "Mg(HCO<sub>3</sub>)<sub>2</sub> and MgCO<sub>3</sub>"}, {"identifier": "B", "content": "Ca(HO<sub>3</sub>)<sub>2</sub> and CaO"}, {"identifier": "C", "content": "Ca(HCO<sub>3</sub>)<sub>2</sub> and Ca(OH)<sub>2</sub>"}, {"identifier": "D", "content": "Mg(HCO<sub>3</sub>)<sub>2</sub> and... | ["D"] | null | Accoring to NCERT this is the right reaction
<br>Mg(HCO<sub>3</sub>)<sub>2</sub> $$\buildrel \Delta \over
\longrightarrow $$ Mg(OH)<sub>2</sub> $$ \downarrow $$ + CO<sub>2</sub> $$ \uparrow $$ + H<sub>2</sub>O
<br><br>But right reaction should be,
<br>Mg(HCO<sub>3</sub>)<sub>2</sub> $$\buildrel \Delta \over
\longri... | mcq | jee-main-2019-online-12th-april-evening-slot | 2,588 |
8tUg0a63BEI8RgQVDz7k9k2k5dz9yug | chemistry | hydrogen | hard-and-soft-water | In comparison to the zeolite process for the removal of permanent hardness, the synthetic resins
method is : | [{"identifier": "A", "content": "less efficient as the resins cannot be regenerated.\n"}, {"identifier": "B", "content": "more efficient as it can exchange only cations."}, {"identifier": "C", "content": "more efficient as it can exchange both cations as well as anions."}, {"identifier": "D", "content": "less efficient... | ["C"] | null | Synthetic resin method is more efficient because it can exchange both cation & anion. | mcq | jee-main-2020-online-7th-january-morning-slot | 2,589 |
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