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ujLi6thFLgRK0Ufpxw7k9k2k5epoqsq | chemistry | haloalkanes-and-haloarenes | haloalkanes | For the following reactions<br/><br/>
<img src="data:image/png;base64,UklGRgIYAABXRUJQVlA4IPYXAABwegCdASqtASQBPm02mEikIyKhIfK54IANiWlu/HyZcetQxv0N/j35J99v9r/uX7U+hf4l8y/Y/7L+zX919df94/kHUM/G39E75r37+Wf1D/nf2j10/yv8c/nX/Q/wHon7s/kD2CPT/+S/kv9T/W/42fY/9V/IP494QFj/0A9gL3O+Zf53+Q/179cfO//kP5D/OP+17n/Uv/S/y/4A/0//zX8U/pP/n/... | [{"identifier": "A", "content": "$${\\mu _B} > {\\mu _A}$$ and K<sub>e</sub>(A) > K<sub>e</sub>(B) "}, {"identifier": "B", "content": "$${\\mu _A} > {\\mu _B}$$ and K<sub>e</sub>(B) > K<sub>e</sub>(A) "}, {"identifier": "C", "content": "$${\\mu _B} > {\\mu _A}$$ and K<sub>e</sub>(B) > K<sub>e</sub>(A)... | ["B"] | null | For 1<sup>o</sup> alkayl halide rate of substitute reaction is more than rate of elimination reaction.
<br><br>When Z = A, then k<sub>s</sub> $$>$$ k<sub>e</sub> and
<br><br>when Z = B, then k<sub>s</sub> $$<$$ k<sub>e</sub>
<br><br>$$ \therefore $$ $$\mu $$<sub>A</sub> $$>$$ $$\mu $$<sub>B</sub>
<br><br>As B ... | mcq | jee-main-2020-online-7th-january-evening-slot | 2,340 |
sSYPLm5miYNmix2WqG7k9k2k5dz2mc7 | chemistry | haloalkanes-and-haloarenes | haloalkanes | 1- methyl ethylene oxide when treated with an excess of HBr produces :
| [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265846/exam_images/jdmwsenankqndxjzrjid.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Haloalkanes and Haloa... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265421/exam_images/spmocr8jl9gbwerxjwno.webp"><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264035/exam_images/rcxmwsktsjzw0ulvhzce.webp" style="max-width: 100%;height: auto;display: block;margi... | mcq | jee-main-2020-online-7th-january-morning-slot | 2,341 |
fle61OqBeWId3MqtE91klrf9elk | chemistry | haloalkanes-and-haloarenes | haloalkanes | What is the major product formed by HI on reaction with<br/><br/> <img src="data:image/png;base64,UklGRkILAABXRUJQVlA4IDYLAABwrwCdASoAA48BP4HA3GS2Ma2nIhT5OsAwCWlu/DZ3170HZ19/tR/v/V3dDr+iv/b7ikYkKv/nx1Avc3//+tgrYe2YA7p+3+gp7ZgDun7f6CntmAO6fs3oOaqQMrHapA6vaxcLPzReUkqt41XtAzAsQCsQGNsGlv0baRdY17HktD7FlV17ReUkqt5AWLwf1OtyJ4... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l9fotthz/7ed76597-da89-4266-a25e-0b52e1998fb5/6a762a70-4fb4-11ed-88d9-abb495ae8a3e/file-1l9fotti0.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l9fotthz/7ed76597-da89-4266-a25e-0b52e1998fb5/6a7... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kxhf1i3x/7445a091-14f9-4724-bbc4-3f68a47ffedf/1d98a9d0-6315-11ec-b1e6-f1aee4474c98/file-1kxhf1i3y.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1kxhf1i3x/7445a091-14f9-4724-bbc4-3f68a47ffedf/1d98a9d0-6315-11ec-b1e6-f1aee4474c98/fi... | mcq | jee-main-2021-online-24th-february-morning-slot | 2,342 |
ZwyvPwEQPk1tyvs63T1kls8zk0d | chemistry | haloalkanes-and-haloarenes | haloalkanes | Identify A and B in the chemical reaction.<br/><br/><img src="data:image/png;base64,UklGRpoMAABXRUJQVlA4II4MAADwSgCdASrcAZMAPm02l0kkIqIhItHZkIANiWlu/E844OtQ0P0I/mH4i+Yb9L/m/5Aef/4b8z/dvzD3S7U4+U/W77b/P/6n/qP7l6u/63+O+Nvtf1AvUP+D/k/9k/2n9e9Mf9r7hKkX6Afxr3CPbD5t/pP5v/av198+D+O/mf7K+5P0x9gP9NP73/Jv6V/1f7X8d/2j9I/6J5wngH+I... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265369/exam_images/fopgjwsj6xpvha6bpgob.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Haloalkanes and Ha... | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267815/exam_images/fetvd8w4xr7ve1sg6t41.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 86 English Explanation... | mcq | jee-main-2021-online-25th-february-morning-slot | 2,344 |
dMSAl9UY4rzBS43UQT1kludmcsw | chemistry | haloalkanes-and-haloarenes | haloalkanes | For the given reaction :<br/><br/><img src="data:image/png;base64,UklGRlwOAABXRUJQVlA4IFAOAABwRwCdASriAUsAPm00lkekIyKhJhT6uIANiWlu/HvvPG258S/zbtM/uP5Teev4T81/bf6n+z/9V9hmqt/yfJP9Zftf8v/aj+l+u3+f/pP9A8lfcZ8cewF6e/wP9H/qX6zeJX3plZPQC9pPoX+a/mH9c/7X9d89T9s/of7P+6H1A9gT+dfyv/L/x/+s/9j+o/Mn99/Sv+Z+cz4n7An8t/mn+m/mH9f/6/9X+A... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264907/exam_images/f9gsgebcaztnkvhcekdl.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Ha... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267812/exam_images/mutq0pmtgcainjubvc0b.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267201/exam_images/eavohmb1wpg9o6kphwd9.webp"><source media="(max-wid... | mcq | jee-main-2021-online-26th-february-morning-slot | 2,345 |
UvFjzbK9ZBbA73lguJ1kmhum2z3 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <img src="data:image/png;base64,UklGRgIVAABXRUJQVlA4IPYUAAAQaQCdASq1ApAAPm02l0ikIyIhI1IKUIANiWlu/HyYsF9ZMo5bwh/JPyL8yP6b/X/yf8Sfzz9y/Kj1Oqx/+w/k/do/C/yH+xf8T+/ewH+b/lP9V/z/9D9Jfej/b/x/2AvTf+G/mn9s/VT4k/cP9H/AP8N4FFUf0z9gL28+a/6H+Qf1n/mf4Tzxf4j+N/2n9Zfgn6x/6L8o/oB/Uf/G/yD+sf87+3f//5//vf/Q/h/9l82/zH9FPgC/pH8//x/8m/t//M/q... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266641/exam_images/h1huxm0hyjplv1cb5qjk.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Haloalkanes and Haloa... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263726/exam_images/zrrom4cmpvjxkuvwqhng.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 82 English Explanation"> | mcq | jee-main-2021-online-16th-march-morning-shift | 2,346 |
RE6l7z2cbCKAixju8T1kmiulz5l | chemistry | haloalkanes-and-haloarenes | haloalkanes | <img src="data:image/png;base64,UklGRtAEAABXRUJQVlA4IMQEAACwJACdASoAAZsAPm02l0ikIyIhIGpggA2JaW7hbcEb83vxD/E+3T/P8ogb1/QD/D+tX6AeKPu8+LfMZ/d9dz+gHjS/T7vbuJm9Hv6x+i38j8waMb/IfwD+O+uR/n/xD+q/sd7KflL/n/xn+pfIN+nX+7/jv9b/Xn5GPXx6PX64jGK4Mi1lP6uAqJHcI+BfVxRka2CsPFeGPIGmmN5gCcUaK4Mixjw+Efi6GWbd1X5IczZdSCUqM9axvRwmlJ6CCs+LdLYs... | [{"identifier": "A", "content": "A = HCl, ZnCl<sub>2</sub>"}, {"identifier": "B", "content": "A = HCl; Anhydrous AlCl<sub>3</sub>"}, {"identifier": "C", "content": "A = Cl<sub>2</sub>; UV light"}, {"identifier": "D", "content": "A = Cl<sub>2</sub>; dark, Anhydrous AlCl<sub>3</sub>"}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266427/exam_images/bx64muvadqbdt37sjtm7.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 16th March Evening Shift Chemistry - Haloalkanes and Haloarenes Question 81 English Explanation"> | mcq | jee-main-2021-online-16th-march-evening-shift | 2,347 |
p0cOIqlOwawtyrmmlO1kmj7cuvv | chemistry | haloalkanes-and-haloarenes | haloalkanes | <img src="data:image/png;base64,UklGRjoIAABXRUJQVlA4IC4IAADQLwCdASpPAU8APm0wlUgkIqIhJZDrYIANiWkA2Myqrwv/IfxD8GP7J+PXYC+hfaTJ/vhP6b+4/pr/kvAH2v/xnqBeof7h/OfHn+ind+THeoF7MfN/9j/Hv6P4zf7d+YHuP9JP8z6JP92/L3+m/Lv+V/2P8d8kXuv2A/5b/Ov7l/LP5t/o/9l79n9X/Gv65/4f8v7U/lP/cfyH+7/Ib/P/51/pf5B/S//Z/jflp9g/7IezV+oxioVbx49UhbuXq/rd3ap+... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264295/exam_images/za96tyanjctxmtb6m80t.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Haloalkanes and Haloa... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267822/exam_images/rcrom3eca9t1xqwyjvst.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 80 English Explanation"> | mcq | jee-main-2021-online-17th-march-morning-shift | 2,348 |
uBw8ql4QsONZPxHM2K1kmki9q4m | chemistry | haloalkanes-and-haloarenes | haloalkanes | The correct pair(s) of the ambident nucleophiles is(are)<br/><br/>(A) AgCN/KCN<br/><br/>(B) RCOOAg/RCOOK<br/><br/>(C) AgNO<sub>2</sub>/KNO<sub>2</sub><br/><br/>(D) AgI/KI | [{"identifier": "A", "content": "(B) and (C) only"}, {"identifier": "B", "content": "(B) only"}, {"identifier": "C", "content": "(A) and (C) only"}, {"identifier": "D", "content": "(A) only"}] | ["C"] | null | Ambident ligands are those which have two donor sites but at once it has the ability to donate either site.<br>
Hence in AgCN/KCN, AgNO<sub>2</sub>/KNO<sub>2</sub>, CN<sup>-</sup>, NO<sub>2</sub><sup>-</sup> have two donar sites act as ambident Nu<sup>-</sup>. | mcq | jee-main-2021-online-17th-march-evening-shift | 2,349 |
1CGYQBs9UHwaoHcHUt1kmlmbn0i | chemistry | haloalkanes-and-haloarenes | haloalkanes | Reaction of Grignard reagent, C<sub>2</sub>H<sub>5</sub>MgBr with C<sub>8</sub>H<sub>8</sub>O followed by hydrolysis gives compound "A" which reacts instantly with Lucas reagent to give compound B, C<sub>10</sub>H<sub>13</sub>Cl. The Compound B is : | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265370/exam_images/vqehlkpdyecflildnml8.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Haloalkanes and Haloa... | ["C"] | null | Reaction occur through formation of carbocation.<br><br>
<img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264055/exam_images/uwbxq4gofxwzwplvrsq1.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 18th March Morning Shift Chemistry - Halo... | mcq | jee-main-2021-online-18th-march-morning-shift | 2,350 |
1ktb3xk07 | chemistry | haloalkanes-and-haloarenes | haloalkanes | The major product formed in the following reaction is :<br/><br/><img src="data:image/png;base64,UklGRuQUAABXRUJQVlA4INgUAAAwbwCdASoAA7YAPm00l0kkIqIhITGp6IANiWlu4XShG/OH8Uf0f8ePBr/Pfk74l/pH8v/Vv3I5T3XPmf/I/uj+k/vnts/me9ngEfjn8x/vn5kf2zhmQAfnn9c/YHx8dT7wf7AHfTeF56B7An6i9CfPR9T+wj+wX/J7AfpKC0kKQmaSFITM7uMIbvZ0880PvWBOoMc... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l76lu8pm/dcb2c803-5b31-4b1a-92cf-14b99b2f8ede/3e38ffa0-231d-11ed-8e19-bdbecdc0f718/file-1l76lu8pn.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l76lu8pm/dcb2c803-5b31-4b1a-92cf-14b99b2f8ede/3e3... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l76m078b/03b50f78-ca0b-4beb-9176-91f79f5833fc/e3ef06b0-231d-11ed-8e19-bdbecdc0f718/file-1l76m078c.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l76m078b/03b50f78-ca0b-4beb-9176-91f79f5833fc/e3ef06b0-231d-11ed-8e19-bdbecdc0f718/fi... | mcq | jee-main-2021-online-26th-august-morning-shift | 2,351 |
1ktb5o8x3 | chemistry | haloalkanes-and-haloarenes | haloalkanes | Excess of isobutane on reaction with Br<sub>2</sub> in presence of light at 125$$^\circ$$C gives which one of the following, as the major product? | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265927/exam_images/qumviemxmw6jbbju4kmj.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 26th August Morning Shift Chemistry - Haloalkanes and Halo... | ["D"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264329/exam_images/pmcemckzgac8ybrf5meq.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264495/exam_images/mr1ccbahl5ogqd0sxolw.webp"><img src="https://res.c... | mcq | jee-main-2021-online-26th-august-morning-shift | 2,352 |
1ktctgwvp | chemistry | haloalkanes-and-haloarenes | haloalkanes | A chloro compound "A".<br/><br/>(i) forms aldehydes on ozonolysis followed by the hydrolysis.<br/><br/>(ii) when vaporized completely 1.53 g of A, gives 448 mL of vapour at STP.<br/><br/>The number of carbon atoms in a molecule of compound A is ___________. | [] | null | 3 | 448 ml of A $$\Rightarrow$$ 1.53 gm A<br><br>22400 ml of A $$\Rightarrow$$ $${{1.53} \over {448}}$$ $$\times$$ 22400 gm A = 76.5 Agm<br><br>$$\mathop {{H_3}CHC - CH - Cl}\limits_{It\,has\,3\,carbon\,atoms} \mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Zn/{H_2}O}^{{O_3}}} \mathop {C{H_3} - CH = O}\limits_{Aldehyde}... | integer | jee-main-2021-online-26th-august-evening-shift | 2,353 |
1ktfsau6u | chemistry | haloalkanes-and-haloarenes | haloalkanes | The major product (A) formed in the reaction given below is :<br/><br/><picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265743/exam_images/sthuiabfqkqryn37pcpt.webp"/><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267577/exam_images/za4dq5yijhexs5ptykwy.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 27th August Evening Shift Chemistry - Haloalkanes and Halo... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267735/exam_images/buqdmf60fvocujljw1bb.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 27th August Evening Shift Chemistry - Haloalkanes and Haloarenes Question 66 English Explanation"> | mcq | jee-main-2021-online-27th-august-evening-shift | 2,355 |
1ktia35n9 | chemistry | haloalkanes-and-haloarenes | haloalkanes | The correct order of reactivity of the given chlorides with acetate in acetic acid is : | [{"identifier": "A", "content": "<picture><source media=\"(max-width: 320px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266930/exam_images/jh5mvm7vipzqmqy4yki7.webp\"><source media=\"(max-width: 500px)\" srcset=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263549/exam_images/ogmsmpgbml... | ["D"] | null | Acetate in acetic acid with R-X cause S<sub>N</sub>1
<br><br>Allylic halides undergo faster S<sub>N</sub>1
<br><br>$$ \therefore $$ Correct order is
<br><br><picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266329/exam_images/dvfelhhptg7u7ntl1twv.webp"><source me... | mcq | jee-main-2021-online-31st-august-morning-shift | 2,356 |
1ktjxce0b | chemistry | haloalkanes-and-haloarenes | haloalkanes | The major product of the following reaction is :<br/><br/><img src="data:image/png;base64,UklGRlIUAABXRUJQVlA4IEYUAAAweACdASoAA8UAPm02mUikIyKhI9NJWIANiWlu4XYBG/OH8Uf2HtU/zX9u6gX2J+1efjlH7If7D0R/kv28/g/3r2u/yfe78gv8n1CPyf+o/6Les4ZvYC91/rv7EePRqa+B/9l7gH65+oPfsed+wV+h/Q5/8/MZ9dewp+v//d9eT2P/vR7OY0gU/wvHhzAGUWOZyStNGAMr+E... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lf937n9s/10aaa430-4dc7-4eae-b366-a26cb5cb4993/7a83b900-c2dc-11ed-83cf-b796c5362aaf/file-1lf937n9t.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lf937n9s/10aaa430-4dc7-4eae-b366-a26cb5cb4993/7a8... | ["D"] | null | NaOH + EtOH is known as alcoholic NaOH, so it give E<sup>2</sup> reaction with given alkyl halide.<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lf93c3r6/b0f711f0-b7c5-4a09-a183-024f087bf106/f67bde20-c2dc-11ed-83cf-b796c5362aaf/file-1lf93c3r7.png?format=png" data-orsrc="https://app-content.cdn... | mcq | jee-main-2021-online-31st-august-evening-shift | 2,357 |
1ktn16z1m | chemistry | haloalkanes-and-haloarenes | haloalkanes | In the following sequence of reactions,<br/><br/><img src="data:image/png;base64,UklGRpIPAABXRUJQVlA4IIYPAACwVQCdASoAA2cAPm0ylkikIqIhIvCacIANiWlu4XKRG/Np8mf2z8Y/Cf/F/k76I+VL017Vcqjq3zT/jn2e/P/3r9uvkL2O8Aj2D/rvzC4Lq1voBe2f1z/f+FrqleDPYA/Wv0877z1L2BP5//jfQwz4PWXsGfsR1kvSEITSsgJE+tjUgAEifWxqQACRPrY1IABIn1sakAAkSxxSnXrVGTz... | [{"identifier": "A", "content": "CI<sub>3</sub>COOK, HCOOH"}, {"identifier": "B", "content": "CI<sub>3</sub>COOK, CH<sub>3</sub>I"}, {"identifier": "C", "content": "CH<sub>3</sub>I, HCOOK"}, {"identifier": "D", "content": "CHI<sub>3</sub>, CH<sub>3</sub>COOK"}] | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kwnd5eq6/74b0675e-530a-4a06-aea6-be02e5159b14/347acee0-528e-11ec-abd6-71073e7e9797/file-1kwnd5eq7.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1kwnd5eq6/74b0675e-530a-4a06-aea6-be02e5159b14/347acee0-528e-11ec-abd6-71073e7e9797/fi... | mcq | jee-main-2021-online-1st-september-evening-shift | 2,358 |
1l54ynhrs | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p><img src="data:image/png;base64,UklGRpgWAABXRUJQVlA4IIwWAABQeACdASoAA8cAPm02lkkkIqKhIbEJsIANiWlu4XVRG/Nj8tfy/s//wn9t/bD0B/FPnf7/+Y/r+5C+sT/S9EP4n9m/0H979wn8t3y/F7UF/Fv5V/ivza/vXCmal5gXr19g/53+D8bvUm8L+wB+u3/S/sXnpeEl5T7Af9P/zXqvf33jl/SP897Bf62/9vsJ/vL7SAsD2hi/ae72CfH/VL1FoOrX5SZ0X6Ii4UmdF+iIuFJnRc/qdvVv3ArV19zjtTrZn... | [{"identifier": "A", "content": "$$C{H_3}C{H_2}\\mathop C\\limits^ \\oplus {H_2}$$"}, {"identifier": "B", "content": "$$C{H_3}\\mathop C\\limits^ \\oplus {H_2}$$"}, {"identifier": "C", "content": "$$C{H_3} - \\mathop C\\limits^ \\oplus H - C{H_3}$$"}, {"identifier": "D", "content": "<img src=\"https://app-content.cd... | ["C"] | null | Initially $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}^{+}$ is formed. On rearrangement $\mathrm{CH}_{3}-\mathrm{CH}-\mathrm{CH}_{3}$ stable carbocation is formed. | mcq | jee-main-2022-online-29th-june-evening-shift | 2,359 |
1l56b4ljh | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Which one of the following compounds is inactive towards S<sub>N</sub>1 reaction?</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l577v56y/11d775f6-af60-4cc0-9d0d-4dc65081fd17/f165b6a0-fbda-11ec-a656-a1c0c7b2ee13/file-1l577v56z.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l577v56y/11d775f6-af60-4cc0-9d0d-4dc65081fd17/f16... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l577x5lo/7dee4a6b-6359-4f55-b335-421ec1683e71/2954ddc0-fbdb-11ec-a656-a1c0c7b2ee13/file-1l577x5lp.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l577x5lo/7dee4a6b-6359-4f55-b335-421ec1683e71/2954ddc0-fbdb-11ec-a656-a1c0c7b2ee13/fi... | mcq | jee-main-2022-online-28th-june-morning-shift | 2,361 |
1l5am58bt | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>The major product in the reaction</p>
<p><img src="data:image/png;base64,UklGRr4JAABXRUJQVlA4ILIJAABwdgCdASoAA9sAP4G01WW2LLenIdB6GvAwCWlu6dBXqWGsLP6//5i1Zs5+0vFDwou9YvOeZ//fUydn5JBBKt2naXXEuD1YUGOVnkkEo6Fv3LmpX7Ty5ozxjy8pnpHHw49OPgW+cT8kfvkGrn8PFwoR/Uqzi8YOi1MrEm9QN9cGRayk47EK0G7XF9B8FZINEF+W12xEnQKPRUmbYQauf9xHB1c/... | [{"identifier": "A", "content": "t-Butyl ethyl ether"}, {"identifier": "B", "content": "2,2-Dimethyl butane"}, {"identifier": "C", "content": "2-Methyl pent-1-ene"}, {"identifier": "D", "content": "2-Methyl prop-1-ene"}] | ["D"] | null | We have been given a bulky base, hence elimination will take place & not substitution.<br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8mcr4ts/1136869d-9f5c-4b0d-93b5-c7b98aa06096/7766e300-3f92-11ed-af9d-134e99e746ec/file-1l8mcr4tt.png?format=png" data-orsrc="https://app-content.cdn.examgo... | mcq | jee-main-2022-online-25th-june-morning-shift | 2,362 |
1l6kpzdje | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Major product '$$\mathrm{B}$$' of the following reaction sequence is :</p>
<p><img src="data:image/png;base64,UklGRmITAABXRUJQVlA4IFYTAACQaQCdASoAA4EAPm00lkkkIqIhIdC6UIANiWlu4XNBG/N18j/0v8g/Bb/C+JflS9U+y/rQfxfiP6r/4Xol/J/sN+V/vv7o/GL9//0H5K+ffyC1CPy/+W/4f7YuJfAN+a/17/mf3zxsv8f0O+wv/C9wD+Z/1P/d+vHfsek+wV/TP7/6D3/f/tP... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6qqzx4d/4b8fe7e6-e049-41bc-97d0-1b45f63ff574/df6121d0-1a64-11ed-9fca-fdfa82878a71/file-1l6qqzx4e.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6qqzx4d/4b8fe7e6-e049-41bc-97d0-1b45f63ff574/df6... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7oiszxl/f58787ec-4490-45be-b4e4-e41cf44d8cce/7bef2d90-2cf7-11ed-a627-29822045a51b/file-1l7oiszxm.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7oiszxl/f58787ec-4490-45be-b4e4-e41cf44d8cce/7bef2d90-2cf7-11ed-a627-29822045a51b/fi... | mcq | jee-main-2022-online-27th-july-evening-shift | 2,363 |
1l6p7ds9i | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p><img src="data:image/png;base64,UklGRoITAABXRUJQVlA4IHYTAACwWQCdASoAA0oAPm0ylUgkIqIhI/CbkIANiWlu/HyYputQy/0f/r34q+CX9w/Lb+wem/h59F/tP7hf3D2kf67wu9SeaH8W+wf4j+2/vB/XPaj/L/1nxR+Pn9r6gX5h/Mv8b9wXC8AA/Kf6d/yv734kv9H/dPUX62/8X3AP5R/V/9z6uf8nwaPuv+4/Xf4Av5t/cv+5/pPdh/p//Z/pPPv+g/6T/2/6r4DP55/af+f/h+1V6Q5b1SCjX0X2R5fNJrxY6... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6se7246/ee946ec5-d41c-4507-ab29-b9fba07d1db0/60858160-1b4c-11ed-8d4d-21aa0aaa21ed/file-1l6se7247.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6se7246/ee946ec5-d41c-4507-ab29-b9fba07d1db0/608... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7w0lm3x/2c1929fb-1969-4c2e-bc8e-0b47cd158f74/8f764dd0-3116-11ed-aea7-cb6fb344ee54/file-1l7w0lm3y.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7w0lm3x/2c1929fb-1969-4c2e-bc8e-0b47cd158f74/8f764dd0-3116-11ed-aea7-cb6fb344ee54/fi... | mcq | jee-main-2022-online-29th-july-morning-shift | 2,365 |
1l6rkruce | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Compound 'A' undergoes following sequence of reactions to give compound 'B'.</p>
<p>The correct structure and chirality of compound 'B' is</p>
<p>[where Et is $$\left.-\mathrm{C}_{2} \mathrm{H}_{5}\right]$$</p>
<p><img src="data:image/png;base64,UklGRvoJAABXRUJQVlA4IO4JAACwfACdASoAA94AP4G812Q2L6wmoxGKIsAwCWlu4W3BG/P... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6tbstf9/83eef8de-f093-463c-83ba-a133aeba22aa/cadec250-1bcf-11ed-bd9f-71db3a4811b2/file-1l6tbstfa.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6tbstf9/83eef8de-f093-463c-83ba-a133aeba22aa/cad... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7npzrbs/0998fa83-6a61-47ec-a1c0-8eb37588b1ec/cf34b090-2c86-11ed-a521-1f85f535c206/file-1l7npzrbt.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7npzrbs/0998fa83-6a61-47ec-a1c0-8eb37588b1ec/cf34b090-2c86-11ed-a521-1f85f535c206/fi... | mcq | jee-main-2022-online-29th-july-evening-shift | 2,366 |
1ldpofz2g | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>The correct order of melting points of dichlorobenzenes is</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldq0q25h/e3291284-23a3-4a54-8f27-c781d6cff1fc/a377f950-a493-11ed-8eb4-ef270ed2fedb/file-1ldq0q25i.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldq0q25h/e3291284-23a3-4a54-8f27-c781d6cff1fc/a37... | ["A"] | null | Out of o, m, p-dichlorobenzene para isomer has
maximum melting point due to symmetrical nature.
<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lexial6x/41043e8b-1972-4b2f-a0ce-f8f121201ebb/0d7adb90-bc7e-11ed-bc04-c99c667d63ec/file-1lexial6y.png?format=png" data-orsrc="https://app-content.cdn.e... | mcq | jee-main-2023-online-31st-january-morning-shift | 2,367 |
1ldsr6wu7 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Identify the correct order for the given property for following compounds.</p>
<p><img src="data:image/png;base64,UklGRvAWAABXRUJQVlA4IOQWAADQ9ACdASoAA/UBP4G812W2LqsnIXPpwsAwCWlu/BmZVOtQ2/1s/4X9v8W38l/zNrBwP03W//30f4vgv8307xwX568/yhF+Z6QOR/PG//nf0iQvylRfJH7OKxyIuFKi+SP2cVjjtyQbkzm6mvHF9nmpERUWVU8ZIyy0DS0cZrahxGYiOFW... | [{"identifier": "A", "content": "(A), (B) and (E) only"}, {"identifier": "B", "content": "(A), (C) and (D) only"}, {"identifier": "C", "content": "(A), (C) and (E) only"}, {"identifier": "D", "content": "(B), (C) and (D) only"}] | ["C"] | null | Boiling point of alkyl halide increases with
increase in size, mass of halogen atom and size of
alkyl group.<br/><br/>
Boiling point of isomeric alkyl halide decreases
with increase in branching. But we know boiling point of alkyl halide increases with
increase in mass of halogen atom and here halogen atom Br has atomi... | mcq | jee-main-2023-online-29th-january-morning-shift | 2,369 |
1ldu0kss8 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>The isomeric deuterated bromide with molecular formula $$\mathrm{C_4H_8DBr}$$ having two chiral carbon atoms is</p> | [{"identifier": "A", "content": "2 - Bromo - 1 - deuterobutane"}, {"identifier": "B", "content": "2 - Bromo - 1 - deutero - 2 - methylpropane"}, {"identifier": "C", "content": "2 - Bromo - 3 - deuterobutane"}, {"identifier": "D", "content": "2 - Bromo - 2 - deuterobutane"}] | ["C"] | null | <p>The isomeric deuterated bromide with molecular formula $\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{DBr}$ having two chiral carbon atoms is</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1ledu4jjh/e2000728-483f-4188-a47f-b406e7d46fc7/a5e939d0-b1ac-11ed-8e7a-cdae5879fb93/file-1ledu4jji.png?format=pn... | mcq | jee-main-2023-online-25th-january-evening-shift | 2,370 |
1ldyfs5ir | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Assertion A : Hydrolysis of an alkyl chloride is a slow reaction but in the presence of NaI, the rate of the hydrolysis increases.</p>
<p>Reason R : I$$^{-}$$ is a good nucleophile as well as a good leaving group.</p>
<p>In the light of the above statements, choose the correct answer from the options given below</p> | [{"identifier": "A", "content": "A is true but R is false"}, {"identifier": "B", "content": "A is false but R is true"}, {"identifier": "C", "content": "Both A and R are true and R is the correct explanation of A"}, {"identifier": "D", "content": "Both A and R are true but R is NOT the correct explanation of A"}] | ["C"] | null | The rate of hydrolysis of alkyl chloride improves because of better Nucleophilicity of I<sup>–</sup>. | mcq | jee-main-2023-online-24th-january-morning-shift | 2,371 |
1lgq3zgvn | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>In the following reaction 'X' is</p>
<p><img src="data:image/png;base64,UklGRqoXAABXRUJQVlA4IJ4XAACwfACdASoAA7EAPm02l0ikIqIhIZJqaIANiWlu/DZ5UJfnZ11fpx/bPyK8Df8D/cfIH8Y+b/yv9s/aLlH9Q+an8h+2H5z+1+2L+J/3fg78kf6z7ZPkF/Hv5v/pv7lvotmfQF9jPof+v/xHjm6jviH/o+4B+q/o7/2fDK9c9gT+k/5b0Lf/T/UegP6o/aj4EP53/dP+72GvSSHIO7u7u7u7u7u7u... | [{"identifier": "A", "content": "$$\\mathrm{CH}_{3}\\left(\\mathrm{CH}_{2}\\right)_{4} \\mathrm{CH}_{2} \\mathrm{Cl}$$"}, {"identifier": "B", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgqywlb2/746b3135-4718-4875-ba6b-9d194c4a6ac7/f5a5efe0-e07d-11ed-baf9-87204e3a7c88/file-1lgqywlb3.pn... | ["B"] | null | $\mathrm{n}$-alkanes on heating in this presence of anhydrous $\mathrm{AlCl}_3$ and hydrogen chloride gas isomerise to branched chain alkanes. The major product has one methyl side chain.<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lh1pni8u/e3737538-d08b-4929-b807-db07c9569200/65fb63e0-e666-... | mcq | jee-main-2023-online-13th-april-morning-shift | 2,372 |
1lguz2mff | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p><img src="data:image/png;base64,UklGRsgNAABXRUJQVlA4ILwNAADwlwCdASoAAz0BP4G+12U2L6wnIrHZisAwCWlu4WxhG/Pn9Hfq1j62A9n72k+fXRUt7edtJ56csiK//RJ9u+TCpd84ciql+yADcv1NWbga3ILSL1EmXfJhUu+cN3a3EQ9seM+pgLt1UrWSEi3RRfDdqoMwBz1bm6kTO5w64f0o7ZoflAuBZkq7UlzrsJou6MrpjmXcdTdgi/OyyqlqQ5xjfktvS7/8JQYahvb4rVj5Hh1VJJ1hov8NGpuz//usSq8un... | [{"identifier": "A", "content": "Reaction (I) is of $$1^{\\text {st }}$$ order and reaction (II) is of $$2^{\\text {nd }}$$ order"}, {"identifier": "B", "content": "Reaction (I) is of $$2^{\\text {nd }}$$ order and reaction (II) is of $$1^{\\text {st }}$$ order"}, {"identifier": "C", "content": "Reactions (I) and (II) ... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1liw3ua5e/7981a247-11fb-41c3-bf94-0b4327a19de3/9d0fcc20-0ae9-11ee-90ad-4fcf9f0e5686/file-6y3zli1liw3ua5f.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1liw3ua5e/7981a247-11fb-41c3-bf94-0b4327a19de3/9d0fcc20-0ae9-11ee-90... | mcq | jee-main-2023-online-11th-april-morning-shift | 2,373 |
1lgyhghbp | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>The pair from the following pairs having both compounds with net non-zero dipole moment is</p> | [{"identifier": "A", "content": "cis-butene, trans-butene"}, {"identifier": "B", "content": "CH$$_2$$Cl$$_2$$, CHCl$$_3$$"}, {"identifier": "C", "content": "Benzene, anisidine"}, {"identifier": "D", "content": "1,4-Dichlorobenzene, 1,3-Dichlorobenzene"}] | ["B"] | null | <p>The correct option from the pairs having both compounds with a net non-zero dipole moment is:</p>
<p><b>Option A</b>: $\text{cis-butene, trans-butene}$
cis-butene has a net dipole moment because the two alkyl groups are on the same side of the molecule, causing an imbalance in the distribution of electrons. However,... | mcq | jee-main-2023-online-10th-april-morning-shift | 2,374 |
1lgyrsyoh | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Major product '$$\mathrm{P}$$' formed in the following reaction is:</p>
<p><img src="data:image/png;base64,UklGRjgSAABXRUJQVlA4ICwSAABwYACdASoAA5EAPm02l0kkIqIhIrDZkIANiWlu6dBYPeGsJn6cfzztc/wP5X+h/kh9Qe13rj5L+wbU4+V/cX9D/cfQjvR4BH5D/Lf7v+Zn9k4Y6bj1C/XH6p/zf7T47mp9kAcFr6B7A/6F9Wz+88cv1h7BX66f8v/C9p/96BdM8UKmGeKFTDPFCp... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgznwpmi/a3a2d32c-99f5-4508-ad2f-ae21db8495f6/026861a0-e546-11ed-8d50-d941312069b0/file-1lgznwpmj.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgznwpmi/a3a2d32c-99f5-4508-ad2f-ae21db8495f6/026... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lken7gv8/e11026d0-5856-4031-beeb-32d88fa484eb/ac4abe40-28e7-11ee-ba1e-e5c480a50420/file-6y3zli1lken7gv9.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lken7gv8/e11026d0-5856-4031-beeb-32d88fa484eb/ac4abe40-28e7-11ee-ba... | mcq | jee-main-2023-online-8th-april-evening-shift | 2,375 |
lsbmmtp5 | chemistry | haloalkanes-and-haloarenes | haloalkanes | Given below are two statements : one is labelled as <b>Assertion (A)</b> and the other is labelled as <b>Reason (R)</b>.<br/><br/>
<b>Assertion (A)</b> : Haloalkanes react with KCN to form alkyl cyanides as a main product while with $\mathrm{AgCN}$ form isocyanide as the main product.
<br/><br/>
<b>Reason (R)</b> : $\m... | [{"identifier": "A", "content": "(A) is correct but $(\\mathbf{R})$ is not correct"}, {"identifier": "B", "content": "Both (A) and (R) are correct and (R) is the correct explanation of (A)"}, {"identifier": "C", "content": "(A) is not correct but (R) is correct"}, {"identifier": "D", "content": "Both (A) and (R) are co... | ["A"] | null | $\begin{aligned} & \mathrm{R}-\mathrm{X}+\mathrm{KCN} \longrightarrow \mathrm{R}-\mathrm{CN}+\mathrm{KX} \\\\ & \mathrm{R}-\mathrm{X}+\mathrm{AgCN} \longrightarrow \mathrm{R}-\mathrm{NC}+\mathrm{AgX}\end{aligned}$
<br/><br/>$\mathrm{KCN}$ is ionic so it provides cyanide ions in solution and attacks from carbon side on ... | mcq | jee-main-2024-online-1st-february-morning-shift | 2,378 |
jaoe38c1lsc6672b | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is ;</p> | [{"identifier": "A", "content": "Retention occurs in $$S_N 1$$ reaction and inversion occurs in $$\\mathrm{S}_{\\mathrm{N}} 2$$ reaction.\n"}, {"identifier": "B", "content": "Racemisation occurs in $$\\mathrm{S}_{\\mathrm{N}} 1$$ reaction and retention occurs in $$\\mathrm{S}_{\\mathrm{N}} 2$$ reaction.\n"}, {"identifi... | ["D"] | null | <p>The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is Option D. Let's break down why this is the case by understanding both the $$S_N 1$$ and $$S_N 2$$ reactions and their effects on the chirality of the alkyl halide.</p>
<p><b>$$S_N 2$$ Reaction:</b></p>
<p>The $$S_N 2$$ (... | mcq | jee-main-2024-online-27th-january-morning-shift | 2,379 |
jaoe38c1lscrny9s | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Which among the following halide/s will not show $$\mathrm{S_N 1}$$ reaction:</p>
<p>(A) $$\mathrm{H}_2 \mathrm{C}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{Cl}$$</p>
<p>(B) $$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{Cl}$$</p>
<p>(C) <img src="data:image/png;base64,UklGRgQKAABXRUJQVlA4IPgJAACQnACdASoAA4wBP4HA22U2MS2nIj... | [{"identifier": "A", "content": "(B) and (C) only"}, {"identifier": "B", "content": "(A), (B) and (D) only"}, {"identifier": "C", "content": "(B) only"}, {"identifier": "D", "content": "(A) and (B) only"}] | ["C"] | null | <p>Since $$\mathrm{CH}_3-\mathrm{CH}=\stackrel{+}{\mathrm{C}} \mathrm{H}$$ is very unstable, $$\mathrm{CH}_3-\mathrm{CH}= \mathrm{CH}-\mathrm{Cl}$$ cannot give $$\mathrm{S}_{\mathrm{N}^1}$$ reaction.</p> | mcq | jee-main-2024-online-27th-january-evening-shift | 2,381 |
jaoe38c1lsd9mdgj | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Identify A and B in the following reaction sequence.</p>
<p><img src="data:image/png;base64,UklGRoIRAABXRUJQVlA4IHYRAADQZQCdASoAA7oAPm00lkkkIqKhITDJoIANiWlu/DqZh0qPPG2H8r/33th/vvRVec/afmGdP+Zf8o+0n7b+yf3X0o/5XhH8f9QL8d/mX+a3pXZvMF9lfp/fBalOQBwN/pfsCf0b/GerT/Uf/b/af6X07/o3+p9gz+ef3P/r/33tLej0J2iVAQHNigb7U7zUj7KWIaiLK... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lse4zm3a/a5ac03a7-0f6d-4f79-a226-f1b497f41cd0/288f8360-c702-11ee-be30-496b1c29fc5a/file-6y3zli1lse4zm3b.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lse4zm3a/a5ac03a7-0f6d-4f79-a22... | ["C"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lskmofju/7ff7b2e4-5edb-4b9f-b65c-f2ac6594e31e/09d441a0-ca94-11ee-9a3e-d72ae7e965b7/file-6y3zli1lskmofjv.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lskmofju/7ff7b2e4-5edb-4b9f-b65c-f2ac6594e31e/09d441a0-ca94-11ee... | mcq | jee-main-2024-online-31st-january-evening-shift | 2,382 |
jaoe38c1lse7c0dv | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>The product (C) in the below mentioned reaction is :</p>
<p>$$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br} \xrightarrow[\Delta]{\mathrm{KOH}_{(\text {alc) }}} \mathrm{A} \xrightarrow{\mathrm{HBr}} \mathrm{B} \xrightarrow[\mathrm{KOH}_{(\mathrm{aq})}]{\Delta} \mathrm{C}$$</p> | [{"identifier": "A", "content": "Propan-1-ol"}, {"identifier": "B", "content": "Propyne"}, {"identifier": "C", "content": "Propan-2-ol"}, {"identifier": "D", "content": "Propene"}] | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsoffebs/b307e6b6-5ac2-426c-93a5-dec20f62678e/d14b8c80-ccaa-11ee-aa98-13f456b8f7af/file-6y3zli1lsoffebt.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsoffebs/b307e6b6-5ac2-426c-93a5-dec20f62678e/d14b8c80-ccaa-11ee-aa... | mcq | jee-main-2024-online-31st-january-morning-shift | 2,383 |
jaoe38c1lse8isr0 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p><img src="data:image/png;base64,UklGRqQWAABXRUJQVlA4IJgWAAAQfgCdASoAA8cAPm02mEikIyKhIdF56IANiWlu4XXl7mNwq94+/r3a1/b/y8/u3kc+n/z3l+5m+wnVB+PfZ781/cPcn/Md9vAI/IP5//r95js//bfzQ+AL19+lf47+4fkb6hmo14f9gD+h+aHfh/ff99+zHwD/on0G//Dy6fVf7YfAf/PP7h/1Owj6Tv7jDGVE3y6ft8Apw6VAkPsGWo4gAvS5mi7bAlRc5mqzGIGp+YWYoBOfzYEfx7M0uDutsj+XU... | [] | null | 10 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsof7po6/1fedd433-36ac-43a8-8e44-d98a346c5551/fb959e50-cca9-11ee-aa98-13f456b8f7af/file-6y3zli1lsof7po7.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsof7po6/1fedd433-36ac-43a8-8e44-d98a346c5551/fb959e50-cca9-11ee... | integer | jee-main-2024-online-31st-january-morning-shift | 2,384 |
1lsg7n4xi | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Given below are two statements:</p>
<p>Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky substituents will follow $$\mathrm{S}_{\mathrm{N}}{ }^2$$ mechanism.</p>
<p>Statement - II: A secondary alkyl halide when treated with a large excess of ethanol... | [{"identifier": "A", "content": "Both Statement I and Statement II are true.\n"}, {"identifier": "B", "content": "Statement I is true but Statement II is false.\n"}, {"identifier": "C", "content": "Both Statement I and Statement II are false.\n"}, {"identifier": "D", "content": "Statement I is false but Statement II is... | ["A"] | null | <p>Statement - I: Rate of $$\mathrm{S}_{\mathrm{N}} 2 \propto[\mathrm{R}-\mathrm{X}]\left[\mathrm{Nu}^{-}\right]$$</p>
<p>$$\mathrm{S}_{\mathrm{N}} 2$$ reaction is favoured by high concentration of nucleophile $$(\mathrm{Nu}^{-})$$ & less crowding in the substrate molecule.</p>
<p>Statement - II: Solvolysis follows $$\... | mcq | jee-main-2024-online-30th-january-evening-shift | 2,386 |
1lsg8qc5e | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>2-chlorobutane $$+\mathrm{Cl}_2 \rightarrow \mathrm{C}_4 \mathrm{H}_8 \mathrm{Cl}_2$$ (isomers)</p>
<p>Total number of optically active isomers shown by $$\mathrm{C}_4 \mathrm{H}_8 \mathrm{Cl}_2$$, obtained in the above reaction is _________.</p> | [] | null | 6 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lspv21vg/b1bb45be-0a3e-4559-a4df-5656a3ae13a9/b8df33c0-cd74-11ee-9be1-85ca54b9efcb/file-6y3zli1lspv21vh.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lspv21vg/b1bb45be-0a3e-4559-a4df-5656a3ae13a9/b8df33c0-cd74-11ee... | integer | jee-main-2024-online-30th-january-evening-shift | 2,387 |
1lsgxo04a | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Example of vinylic halide is :</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lshfmqnj/65877ebb-ebbe-4ada-874e-9043a148f104/20ef5ff0-c8d2-11ee-adc8-974b9031006b/file-6y3zli1lshfmqnk.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lshfmqnj/65877ebb-ebbe-4ada-874... | ["D"] | null | <p>Vinyl carbon is $$\mathrm{sp}^2$$ hybridized aliphatic carbon</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsqn1ew7/f7a664e7-b29f-46ac-80ae-e458cb213864/26bcbb70-cde2-11ee-a0d3-7b75c4537559/file-6y3zli1lsqn1ew8.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y... | mcq | jee-main-2024-online-30th-january-morning-shift | 2,388 |
1lsgxqdvu | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>The final product A, formed in the following multistep reaction sequence is :</p>
<p><img src="data:image/png;base64,UklGRvILAABXRUJQVlA4IOYLAADQigCdASoAA/QAP4HA2WO2MKymoxFZ8sAwCWlu4W/RG/PP9E7ltkkbx7ZZe9uv0LTJL/+FgtXpJNYSxYpQNIUvggRaNx0o/15ToosVQ2nQUdljB8LReDmXIW0v2k9A04Uck7unnmCSCm47uO7ju46sMzopPB5C3VCuzhyFGRURYlUg... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lshfsuek/a0b1b2cc-80ab-494a-af93-26e37648e627/caaff2c0-c8d2-11ee-adc8-974b9031006b/file-6y3zli1lshfsuel.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lshfsuek/a0b1b2cc-80ab-494a-af9... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsqn3xz6/bb898b3c-9e5d-4f9c-8735-cb8e5aa44808/6d18aa20-cde2-11ee-a0d3-7b75c4537559/file-6y3zli1lsqn3xz7.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsqn3xz6/bb898b3c-9e5d-4f9c-8735-cb8e5aa44808/6d18aa20-cde2-11ee-a0... | mcq | jee-main-2024-online-30th-january-morning-shift | 2,389 |
1lsgygvg4 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).</p>
<p>Assertion (A) : $$\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{Cl}$$ is an example of allyl halide.</p>
<p>Reason (R) : Allyl halides are the compounds in which the halogen atom is attached to $$\math... | [{"identifier": "A", "content": "(A) is true but (R) is false"}, {"identifier": "B", "content": "(A) is false but (R) is true"}, {"identifier": "C", "content": "Both (A) and (R) are true but (R) is not the correct explanation of (A)"}, {"identifier": "D", "content": "Both (A) and (R) are true and (R) is the correct exp... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsqmk2c9/87d2c61a-9ce3-40ae-9f4b-66f7e2c255e9/4448e3a0-cde0-11ee-a0d3-7b75c4537559/file-6y3zli1lsqmk2ca.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lsqmk2c9/87d2c61a-9ce3-40ae-9f4b-66f7e2c255e9/4448e3a0-cde0-11ee-a0... | mcq | jee-main-2024-online-30th-january-morning-shift | 2,390 |
luz2ux53 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).</p>
<p>Assertion (A) : $$\mathrm{S}_{\mathrm{N}} 2$$ reaction of $$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}$$ occurs more readily than the $$\mathrm{S}_{\mathrm{N}} 2$$ reaction of $$\mathrm{CH}_3 \m... | [{"identifier": "A", "content": "Both (A) and (R) are correct but (R) is not the correct explanation of (A)"}, {"identifier": "B", "content": "Both (A) and (R) are correct and (R) is the correct explanation of (A)"}, {"identifier": "C", "content": "(A) is not correct but (R) is correct"}, {"identifier": "D", "content":... | ["B"] | null | <p>To determine the correct answer, we need to analyze both the Assertion (A) and the Reason (R) independently, as well as see if the Reason (R) provides the correct explanation for the Assertion (A).</p>
<p><strong>Assertion (A) Analysis:</strong><br>
<p>Assertion (A) states that $$\mathrm{S}_{\mathrm{N}} 2$$ reacti... | mcq | jee-main-2024-online-9th-april-morning-shift | 2,391 |
lv0vyv19 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Identify the correct set of reagents or reaction conditions '$$X$$' and '$$Y$$' in the following set of transformation.</p>
<p><img src="data:image/png;base64,UklGRkQOAABXRUJQVlA4IDgOAACwTACdASoAA2YAPm00l0ikIqIhIdKKSIANiWlu/Eb4/etQzf1K/sPo68BPw3Rxel/cHk9xL/j/3U/Teur9w72/V56hH5R/M/9L/Zd93sF6AXq59Q/3/918cHUv8P+wB+s/E7... | [{"identifier": "A", "content": "$$\\mathrm{X}=$$ dil.aq. $$\\mathrm{NaOH}, 20^{\\circ} \\mathrm{C}, \\quad \\mathrm{Y}=\\mathrm{HBr} /$$ acetic acid\n"}, {"identifier": "B", "content": "$$\\mathrm{X}=$$ conc.alc. $$\\mathrm{NaOH}, 80^{\\circ} \\mathrm{C}, \\mathrm{Y}=\\mathrm{Br}_2 / \\mathrm{CHCl}_3$$\n"}, {"identifi... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lx57nzme/f8719947-9efd-4e9a-a556-c6aff2650ee4/a7bd8b60-2516-11ef-bc6a-a789f24d0620/file-6y3zli1lx57nzmf.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lx57nzme/f8719947-9efd-4e9a-a556-c6aff2650ee4/a7bd8b60-2516-11ef-bc... | mcq | jee-main-2024-online-4th-april-morning-shift | 2,392 |
lv2es3pv | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p><img src="data:image/png;base64,UklGRrQRAABXRUJQVlA4IKgRAADwYwCdASoAA7oAPm0ylkkkIqIhIrBZUIANiWlu4XVRG/ON8e/2v8gPA3/Uf3PyH8bfsH259f3JH5l/Z+Z38e+4X57yX/U/xd+QWoF+N/zD/D/mjwNuvf6D9gPYC9g/sX/U/xHjd6jWQBwO3oPsDfqT1Yf6/xp/WH7X/AN/Qf7Z/vf8J2fvSTFjx4zOyDgVD3BwJpC9KmVUrZnZBwKh7xiBwKh7xiBwKh7wk6B23A3XYDN4FQ94xA4FQ94xA4FQ94uDX... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lv1tipvc/598e28ad-37ff-4363-9b8e-3aa473da7b17/8ca5cf80-fba0-11ee-aecf-73c37d9c3a58/file-1lv1tipvd.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lv1tipvc/598e28ad-37ff-4363-9b8e-3aa473da7b17/8ca... | ["D"] | null | <p>More stable double bond will be formed.</p>
<p>In <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwht2mny/c57e6457-bd6b-4a16-b61a-42b88c39238f/8efedcf0-1837-11ef-9081-0ded966256d8/file-1lwht2mnz.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwht2mny/c57e6457-bd6b-4a16-b61a... | mcq | jee-main-2024-online-4th-april-evening-shift | 2,393 |
lv2es3h7 | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Find out the major product formed from the following reaction. $$[\mathrm{Me}:-\mathrm{CH}_3]$$</p>
<p><img src="data:image/png;base64,UklGRnYQAABXRUJQVlA4IGoQAABwaQCdASoAA8EAPm02mEikIyKhIpFZmIANiWlu/BmZN+tQxf1c/o3bN/of7h+zfX7+35WBxn8r++X7f+9e27+S/4/grwAvyn+U/4feqQAfof9j87b7XzM8QLgtfVPYG8UXPg9Y+wZ+wPpl+vj96PadFNHy+p... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lv1u3nc9/812e8102-fd33-4706-825e-2fc0b4ad3055/d2af6d90-fba2-11ee-aecf-73c37d9c3a58/file-1lv1u3nca.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lv1u3nc9/812e8102-fd33-4706-825e-2fc0b4ad3055/d2a... | ["A"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwhrlvz9/bea56a30-8675-4505-9349-90b1b6cf9ad7/d4581060-1831-11ef-9081-0ded966256d8/file-1lwhrlw13.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwhrlvz9/bea56a30-8675-4505-9349-90b1b6cf9ad7/d4581060-1831-11ef-9081-0ded966256d8... | mcq | jee-main-2024-online-4th-april-evening-shift | 2,395 |
lv5gt4vr | chemistry | haloalkanes-and-haloarenes | haloalkanes | <p>Which among the following compounds will undergo fastest S<sub>N</sub>2 reaction.</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lv5a4ldq/28c2891f-26ca-4d64-b2b4-05b55203c953/d8fee5e0-fd87-11ee-8734-99d466581eee/file-1lv5a4ldr.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lv5a4ldq/28c2891f-26ca-4d64-b2b4-05b55203c953/d8f... | ["C"] | null | <p>Rate of $$\mathrm{S}_{\mathrm{N} 2}$$ reaction depends on steric hindrance, less the steric hindrance more will be rate of reaction <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lw91f5w0/48bfc8c1-df63-4e1d-a624-c1e9535368b2/26be11f0-1365-11ef-be09-0704d0bfee2a/file-1lw91f5w1.png?format=png" data-o... | mcq | jee-main-2024-online-8th-april-morning-shift | 2,396 |
jTckFpJDgkfdLvSi | chemistry | haloalkanes-and-haloarenes | haloarenes | Fluorobenzene (C<sub>6</sub>H<sub>5</sub>F) can be synthesized in the laboratory | [{"identifier": "A", "content": "by heating phenol with HF and KF "}, {"identifier": "B", "content": "from aniline by diazotisation followed by heating the diazonium salt with HBF<sub>4</sub>"}, {"identifier": "C", "content": "by direct fluorination of benzene with F<sub>2</sub> gas"}, {"identifier": "D", "content": "b... | ["B"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266668/exam_images/uuzfom0g9ppnbdwakqj6.webp" loading="lazy" alt="AIEEE 2006 Chemistry - Haloalkanes and Haloarenes Question 148 English Explanation"> | mcq | aieee-2006 | 2,399 |
18H08g7twOfrwKZgWLwG5 | chemistry | haloalkanes-and-haloarenes | haloarenes | Which of the following compounds will not undergo Friedel Craft’s reaction with benzene ?
| [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l83mukkc/2977e5ab-61b4-4d0a-bbee-e62f31fd685c/0df084d0-3547-11ed-8c5c-f3f0850e6b94/file-1l83mukkd.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l83mukkc/2977e5ab-61b4-4d0a-bbee-e62f31fd685c/0df... | ["B"] | null | <p>Friedel Craft’s reaction is an electrophilic substitution reaction. In this reaction, the intermediate carbocation formed acts as an electrophile and attacks the benzene ring. Vinyl chloride does not react with benzene as its intermediate carbocation is too unstable.</p> | mcq | jee-main-2017-online-8th-april-morning-slot | 2,401 |
DsyTvow7AnQSYU8yPTPm4 | chemistry | haloalkanes-and-haloarenes | haloarenes | The major product of the following reaction is :
<br/><br/><img src="data:image/png;base64,UklGRlwMAABXRUJQVlA4IFAMAADwoACdASoAAx4BP4HA2WQ2MKymotR52sAwCWlu8p8dd6kCN+er6Y/2PWY8sbQeO7bp7VfmhPd2uV//QL8/+eLUC9z///6g/v8WoQEjzfddF3E0KRPoWcdVTo5iDu/36xrw85292CR5vyE/HZUclI835CfjsjJR5lYgikTXquBzoUZVkds1UwRb/EDhLszeo5+69B5lYgo5... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l8mhy01u/4ed694f5-309f-48b7-ab06-79d7cfe2e4c6/c405aa20-3fa6-11ed-835d-8b6c97a43374/file-1l8mhy01v.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l8mhy01u/4ed694f5-309f-48b7-ab06-79d7cfe2e4c6/c40... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8mhuwvc/3aa132a3-da76-43b0-9c9b-2f6ee2fecdfc/6e234680-3fa6-11ed-835d-8b6c97a43374/file-1l8mhuwvd.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8mhuwvc/3aa132a3-da76-43b0-9c9b-2f6ee2fecdfc/6e234680-3fa6-11ed-835d-8b6c97a43374/fi... | mcq | jee-main-2019-online-9th-january-morning-slot | 2,402 |
Fc1OzkqyTnebFycznOjAu | chemistry | haloalkanes-and-haloarenes | haloarenes | The compounds A and B in the following reaction are, respectively :
<br/><br/><img src="data:image/png;base64,UklGRuIQAABXRUJQVlA4INYQAABwYwCdASoAA7cAPm02l0kkIqIhIRDpwIANiWlu4XShG/N181f1vtx/0n5R+ifmm9NZ+OWe0v+afeP9r5o99PAF/Jf5r/ct69AD+af1n/n/231p/mfMz+g9QDvqvD0oCfzL/Heg3nwes/YO/NbsOCek+Je3pU1cmcKT84Un5wpPzhSfnCk/OFJ+c... | [{"identifier": "A", "content": "A = Benzyl alcohol, B = Benzyl cyanide"}, {"identifier": "B", "content": "A = Benzyl chloride, B = Benzyl cyanide"}, {"identifier": "C", "content": "A = Benzyl alcohol, B = Benzyl isocyanide"}, {"identifier": "D", "content": "A = Benzyl chloride, B = Benzyl isocyanide"}] | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8mi6uo5/76e50064-3e98-4a27-9dd9-204d951776a1/ba25ef50-3fa7-11ed-835d-8b6c97a43374/file-1l8mi6uo6.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8mi6uo5/76e50064-3e98-4a27-9dd9-204d951776a1/ba25ef50-3fa7-11ed-835d-8b6c97a43374/fi... | mcq | jee-main-2019-online-9th-january-morning-slot | 2,404 |
8RcNet8zwe4RTSGNFNuZJ | chemistry | haloalkanes-and-haloarenes | haloarenes | Which of the following compounds will produce a precipitate with AgNO<sub>3</sub> ? | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267044/exam_images/aycmojbn5mmpl0ipmf1s.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Haloalkanes and Ha... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265115/exam_images/x8bkgwirpbees62r2qlf.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 117 English Explanation"... | mcq | jee-main-2019-online-11th-january-evening-slot | 2,405 |
evFLLem3k8ZbqRQ0Kjb2V | chemistry | haloalkanes-and-haloarenes | haloarenes | The major product in the following conversion is –
<br/><br/><img src="data:image/png;base64,UklGRgQVAABXRUJQVlA4IPgUAACQYwCdASoAA3sAPm02lkikIqIhIfQ6aIANiWlu/Gf4putQzv02/tX4l9/v9o/Jz9uPXP8Y+d/vv9n/Zn95Pepxj9UH+B6Hfxn6y/c/7j+zv5bffj+L/0HhD6svUC/HP5l/dvyd/LjjxQAfkv9K/xv+B/en/Gel3/J+hn13/4nuAfxj+l/7P7h/kLvw/un+v9gP+a/23/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734265884/exam_images/drmgx1ievhulkqzabhw2.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Haloalkanes and Ha... | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266805/exam_images/j3nhwteizkpjlujqaukl.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 116 English Explanatio... | mcq | jee-main-2019-online-12th-january-evening-slot | 2,406 |
WwOKVgesqjKMVoM414iNi | chemistry | haloalkanes-and-haloarenes | haloarenes | The major product of the following reaction is:
<img src="data:image/png;base64,UklGRrwMAABXRUJQVlA4ILAMAAAwgQCdASoxAsIBP4HA2mY2MK0nITRY8sAwCWlu/Fd5FptHZ1+frB/nbUu0c7EeAF0Xb7aAD8w892Zf9fMQx5TvSfvX/r/f/ipBn3BGogZjDGGMMYYwxhjDGGGpgyf85C+l2Caw8YWMGT/Jugu3QE1h4r4FBpBeuG1WVXXIevUlsLIjd+SxhYwZP8m6C7BNYgTjCxgw7nlRsTyfF7+69bOI... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734264146/exam_images/op22bkqvjccgl84wizgg.webp\" style=\"max-width: 100%; height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2019 (Online) 8th April Evening Slot Chemistry - Haloalkanes and Haloa... | ["C"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267637/exam_images/fep7ynylun9elgligsch.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263363/exam_images/c58htccx51u6q8ljlbxx.webp"><source media="(max-wid... | mcq | jee-main-2019-online-8th-april-evening-slot | 2,407 |
JJoW2cnTl8civviy8n3rsa0w2w9jwuo7608 | chemistry | haloalkanes-and-haloarenes | haloarenes | Increasing rate of S<sub>N</sub>1 reaction in the following compounds is :
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265133/exam_images/qxf6ybakcbaxxusemijv.webp"/><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/uploa... | [{"identifier": "A", "content": "(B) < (A) < (D) < (C)"}, {"identifier": "B", "content": "(A) < (B) < (C) < (D)"}, {"identifier": "C", "content": "(A) < (B) < (D) < (C)"}, {"identifier": "D", "content": "(B) < (A) < (C) < (D)"}] | ["D"] | null | The rate of S<sub>N</sub>1 is decided by the stability of
carbocation which is formed when leaving group I(Iodine) leave from the compound.
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263637/exam_images/nslhqh6genasdzbom9aw.webp"><source media="(max-width: ... | mcq | jee-main-2019-online-10th-april-morning-slot | 2,408 |
YavpVgSpNnsmmtiC9pjgy2xukf3l9z5w | chemistry | haloalkanes-and-haloarenes | haloarenes | The decreasing order of reactivity of the
following compounds towards nucleophilic
substitution (S<sub>N</sub>2) is :
<img src="data:image/png;base64,UklGRqAOAABXRUJQVlA4IJQOAACQcwCdASqqAZsBP4HA2mU2MKynIhEpgsAwCWlu/HyYT+tQ3P1N/3PcBs8V9NoL2GyjoZTIs+39IPDXHlv/XyhfuG/BFH5XIvyuRflci/K5F+QrC/wlKWxfRB1VZpO3lX72646fL5e9GD5Kjq... | [{"identifier": "A", "content": "(IV) > (II) > (III) > (I)"}, {"identifier": "B", "content": "(II) > (III) > (IV) > (I)"}, {"identifier": "C", "content": "(II) > (III) > (I) > (IV)"}, {"identifier": "D", "content": "(III) > (II) > (IV) > (I)"}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263380/exam_images/wcwfqxjbnzzxgfwuvyto.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Haloalkanes and Haloarenes Question 95 English Explanation"... | mcq | jee-main-2020-online-3rd-september-evening-slot | 2,409 |
R17Owbz5Pp9laeznxp7k9k2k5id7pn5 | chemistry | haloalkanes-and-haloarenes | haloarenes | Which of these will produce the highest yield
in Friedel Crafts reaction? | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lklwrioi/171e8265-a1a1-4cf3-99fc-b054fff98e8d/88957320-2ce6-11ee-bc68-eb1ab951bc36/file-6y3zli1lklwrioj.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lklwrioi/171e8265-a1a1-4cf3-99f... | ["A"] | null | Friedel-Crafts reaction is an electrophilic substitution reaction. In general, the rate of these reactions is highest when benzene have some electron releasing groups, (i.e. $-\mathrm{NH}_2-\mathrm{OH}$ ) attached to the nucleus.<br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lklwt6ke/ba... | mcq | jee-main-2020-online-9th-january-morning-slot | 2,410 |
detR51mNZbwjwjJaG67k9k2k5eoij92 | chemistry | haloalkanes-and-haloarenes | haloarenes | Consider the following reactions :
<img src="data:image/png;base64,UklGRjYMAABXRUJQVlA4ICoMAACwSQCdASqRAa4APm00lkikIqIhI/OqCIANiWlu/GQmz/AH8AucDADWhA8J5PxT/MO1z/C/0bpqvOHtb6cfwB/JfPxzH/tf496pfPB9B/Hf2+/sfsl/p/5R468Aj1n/n/5V+KfkJ/3bwHbAegF27/1/8g/cTzB/5/+ceqP1L/w/uBfpH/of4N/ZP/F60P6V+VBQD/K/+6/l39v/Uv3+/7/+I/1z/1/6L24/M... | [{"identifier": "A", "content": "(b), (c) and (d)"}, {"identifier": "B", "content": "(a) and (b) "}, {"identifier": "C", "content": "(a) and (d)\n"}, {"identifier": "D", "content": "(b) and (d)"}] | ["D"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265774/exam_images/qknzxvqgk495zkvznovg.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 7th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 104 English Explanation 1... | mcq | jee-main-2020-online-7th-january-evening-slot | 2,411 |
2wKz6rJGqBZP9jufpP1kluc60hc | chemistry | haloalkanes-and-haloarenes | haloarenes | For the given reaction<br/><br/><img src="data:image/png;base64,UklGRioPAABXRUJQVlA4IB4PAABwTACdASqbAXoAPm02l0ikIyIhIzGqYIANiWlu/HyYbOtQzv0A/lX4t+6jwT+tfkp4j/m373+WXrKVs/9V5Lvqb9x/lX9A/2Xpt/u/59/SPJX4IelHuBemf7z/Jf6v/w/7x6X/8J/Ve7FAD+WfyP+0/zD+x/+H/GedP+4/z7+pf9b3U+mX+Z9wL+Y/zj/B/xz+r/+L/D/NH+t/uniReT+wH/Nv55/h/5n/QP+z... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734267840/exam_images/ljjg2tgbylo7pzftce9q.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Ha... | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266082/exam_images/uavmoygjijnvb09j3alw.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 85 English Explanation... | mcq | jee-main-2021-online-26th-february-morning-slot | 2,412 |
0waZvheKJvBtoKmW521klus6eqw | chemistry | haloalkanes-and-haloarenes | haloarenes | Match List - I with List - II.<br/><br/><img src="data:image/png;base64,UklGRogeAABXRUJQVlA4IHweAAAwiACdASr0AeAAPm00lkekIyIhJhK6+IANiWlu/HA4wMNDOzrv/gH8K/jX5UeZH9H/sH9V/b30F/FfoX7l/W/2t9P7+v/m3TSf1H8d/tPsn8130n8X/rP/S/v3r5/i/4T/Tv+r/XvQv3K/y38t/m/uEenv8r/F/61+q/px/2/8a/nPf+V+/Rr2BfeP5X/n/49/Wv2S86f9u/lH9b/5n9g////1+h/q... | [{"identifier": "A", "content": "(a) $$ \\to $$ (ii), (b) $$ \\to $$ (iv), (c) $$ \\to $$ (i), (d) $$ \\to $$ (iii)"}, {"identifier": "B", "content": "(a) $$ \\to $$ (iii), (b) $$ \\to $$ (iv), (c) $$ \\to $$ (i), (d) $$ \\to $$ (ii)"}, {"identifier": "C", "content": "(a) $$ \\to $$ (iii), (b) $$ \\to $$ (i), (c) $$ \\... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263330/exam_images/hkzxxs5bfnv4g5uxef9f.webp"><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266708/exam_images/resieehj1idkvbtwhiva.webp" style="max-width: 100%;height: auto;display: block;margi... | mcq | jee-main-2021-online-26th-february-evening-slot | 2,413 |
7NudWE0Pd6VRZKz21W1kmj8cx36 | chemistry | haloalkanes-and-haloarenes | haloarenes | Which of the following reaction is an example of ammonolysis? | [{"identifier": "A", "content": "C<sub>6</sub>H<sub>5</sub>COCl + C<sub>6</sub>H<sub>5</sub>NH<sub>2</sub> $$ \\to $$ C<sub>6</sub>H<sub>5</sub>CONHC<sub>6</sub>H<sub>5</sub>"}, {"identifier": "B", "content": "C<sub>6</sub>H<sub>5</sub>CH<sub>2</sub>CN $$\\buildrel {[H]} \\over\n \\longrightarrow $$ C<sub>6</sub>H<sub>... | ["D"] | null | Ammonolysis of alkyl halides is the reaction of an alkyl
halide with NH<sub>3</sub> which leads to the preparation of
amines.<br><br>
C<sub>6</sub>H<sub>5</sub>CH<sub>2</sub>Cl + NH<sub>3</sub> $$ \to $$ C<sub>6</sub>H<sub>5</sub>CH<sub>2</sub>NH<sub>2</sub> | mcq | jee-main-2021-online-17th-march-morning-shift | 2,415 |
1krus5stv | chemistry | haloalkanes-and-haloarenes | haloarenes | <img src="data:image/png;base64,UklGRmwNAABXRUJQVlA4IGANAABwVwCdASqpAeUAPm02mEikIqKhItM5cIANiWlu4XEeIPOLXypugn/Bn8Z/GjwD/uH5D+hP4p9A/YPyI/rvsOfyv8A6l7+H7e/2v+P/1f/qfmB8Af6P+R/2zyJ9zH8t/K/YI9Lf0/+Qf0n/S/0f0v/6P+J/yj/AeNZKr6gXuv8m/wX8T/q//p/xXoJ/uf85/ar3P+YD3Av1g/x38Z/FD55/4v+V/gH8A80Xxv/FfyX1pf6f+Pf0r9ZPhD/vP4p/N/2+9uPz... | [{"identifier": "A", "content": "(b) and (d) only"}, {"identifier": "B", "content": "(a) and (c) only"}, {"identifier": "C", "content": "(b), (c) and (d) only"}, {"identifier": "D", "content": "(a), (b) and (d) only"}] | ["C"] | null | Bromine water gives tribromo products, other gives monobromo products in which para is major product. | mcq | jee-main-2021-online-25th-july-morning-shift | 2,418 |
1ktb4qore | chemistry | haloalkanes-and-haloarenes | haloarenes | Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. HNO<sub>3</sub> (iii) AgNO<sub>3</sub>?<br/><br/><picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267698/exam_images/aymkzlyrrbppf6ujzm4b.we... | [{"identifier": "A", "content": "II"}, {"identifier": "B", "content": "IV"}, {"identifier": "C", "content": "I"}, {"identifier": "D", "content": "III"}] | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264707/exam_images/r8fargtfz7baivebgkzd.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 26th August Morning Shift Chemistry - Haloalkanes and Haloarenes Question 72 English Explanation">... | mcq | jee-main-2021-online-26th-august-morning-shift | 2,419 |
1ktcreyzn | chemistry | haloalkanes-and-haloarenes | haloarenes | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267058/exam_images/vic1nditmtd6im2bvfei.webp"/><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264967/exam_images/swofcshd8w5tvjdgzmrt.webp"/><img src="data:image/... | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263762/exam_images/jgvwhfugl2mf0w7refo1.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 26th August Evening Shift Chemistry - Haloalkanes and Halo... | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265245/exam_images/nfkkwsiodms2mb7wah5j.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 26th August Evening Shift Chemistry - Haloalkanes and Haloarenes Question 69 English Explanation"> | mcq | jee-main-2021-online-26th-august-evening-shift | 2,420 |
1l549l3h8 | chemistry | haloalkanes-and-haloarenes | haloarenes | <p><img src="data:image/png;base64,UklGRugXAABXRUJQVlA4INwXAAAweQCdASoAA6MAPm00l0ikIqKhI5H6AIANiWlu4XExG/OT8Y/178g/Aj/W/kx6G/ifzf+l/tv7Yeq9/h+ETrv/l+iP8i/C34v+0e1z+V71fl3qC/jn8g/vP5tf1ThYt18wv2w+vfsB6233HmV9k/91/X/gA/MbjkvM/YI/pX+L9Wr+38cv1J7BP65/9XsH+mKPiIiIh9tfpa983YSJXjqHOsu6rToIiIiIiIiIiIiIe6mmuJiZx/5D7bAQDG8ayqnLR... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l56if2ja/e6af6889-7795-4502-affd-d7dcbdfcff72/6e2b3c50-fb77-11ec-a001-e15673d6a9a2/file-1l56if2jb.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l56if2ja/e6af6889-7795-4502-affd-d7dcbdfcff72/6e2... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lc3xxevc/9cfb79dc-446c-40ee-baa8-c23231c78096/3ee76080-84a3-11ed-a933-b186ba7d5038/file-1lc3xxevd.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lc3xxevc/9cfb79dc-446c-40ee-baa8-c23231c78096/3ee76080-84a3-11ed-a933-b186ba7d5038/fi... | mcq | jee-main-2022-online-29th-june-morning-shift | 2,421 |
1l54ypcre | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Two isomers (A) and (B) with Molar mass 184 g/mol and elemental composition C, 52.2%; H, 4.9% and Br 42.9% gave benzoic acid and p-bromobenzoic acid, respectively on oxidation with KMnO<sub>4</sub>. Isomer 'A' is optically active and gives a pale yellow precipitate when warmed with alcoholic AgNO<sub>3</sub>. Isomer... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l55goxb9/4e827da1-45d0-4d16-943e-93cd7236ac58/e5518d50-fae3-11ec-b8f8-f787cc45caa2/file-1l55goxba.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l55goxb9/4e827da1-45d0-4d16-943e-93cd7236ac58/e55... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l97wxk7m/17748261-bee4-4018-99d2-fe42e761afa3/d65c8720-4b6d-11ed-9399-cda4ba1d6994/file-1l97wxk7n.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l97wxk7m/17748261-bee4-4018-99d2-fe42e761afa3/d65c8720-4b6d-11ed-9399-cda4ba1d6994/fi... | mcq | jee-main-2022-online-29th-june-evening-shift | 2,422 |
1l55nhhg3 | chemistry | haloalkanes-and-haloarenes | haloarenes | <p> <img src="data:image/png;base64,UklGRqAVAABXRUJQVlA4IJQVAABweQCdASoAA7EAPm02l0kkIqKhIbK6EIANiWlu/Fd5ir0HZ11/ph/U/x693vgJ+f/u3kf+O/Sf538xPWIyp9WWp38v+zf6T+0/u78Yv3r/U/ld/S/R/1e+oX+T/0D/SfmJwV4A/0L+1f9Lwr9Sz3C/Df9P+4fAB/Mf7j6Rf8Dw5vOfYF/pP+a/ZT2JP/bzK/U//u/03wNdJkYGpC4C9mCqsyGLRaekC0n1mIoVGvSVlRWUjzfkGQgYKykeb8gyEDBW... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l57f1y0z/a51136ee-2e27-4e97-b627-3d23d4de0b92/0e6e0d30-fbf7-11ec-9122-e7a63a6c1cfe/file-1l57f1y10.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l57f1y0z/a51136ee-2e27-4e97-b627-3d23d4de0b92/0e6... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l99veqsk/b8a19854-6ed9-44f3-b80d-9a348afdeb64/733dde40-4c81-11ed-aba3-e33a2f44b599/file-1l99veqsl.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l99veqsk/b8a19854-6ed9-44f3-b80d-9a348afdeb64/733dde40-4c81-11ed-aba3-e33a2f44b599/fi... | mcq | jee-main-2022-online-28th-june-evening-shift | 2,423 |
1l55o8v10 | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>The major product of the following reaction contains ____________ bromine atom(s).</p>
<p> <img src="data:image/png;base64,UklGRuYJAABXRUJQVlA4INoJAACQgwCdASoAAyEBP4G812W2LqwnIdKZWsAwCWlu4Wo0NmNwvV51xhjCvU5jlfHP3/Q2QAff/07Khn4v/N///f/h8ZGReLJSjXnn2KPo1FA4Er3lyX3wTYc+jqPuLhns+4uGez7i4Z7PuLhnHQxvXK/5y/jG7ky8HgAZ/BljYi... | [] | null | 1 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l5dwkfem/47060c05-0e04-4935-a1ed-79d5304396a8/3f82e1e0-ff88-11ec-9933-ef22a1309b30/file-1l5dwkfen.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l5dwkfem/47060c05-0e04-4935-a1ed-79d5304396a8/3f82e1e0-ff88-11ec-9933-ef22a1309b30... | integer | jee-main-2022-online-28th-june-evening-shift | 2,424 |
1l57sa1jo | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>The major product of the following reaction is :</p>
<p> <img src="data:image/png;base64,UklGRj4PAABXRUJQVlA4IDIPAADwAwGdASrqAgADP4HA3GW2MS2nIZT44sAwCWlu8p8dgUQCN+fn6R/3f999oPQrzl/EMJP/q8+XZ3+M/v/7y9DTBr6I//+gR589NOsx7m///wLP/+FzcmqpF1qeJUWAsBYCwFgLAWAsBYCwFgLAV+QTXHzYvtOwaP0E1ya47YNH6Ca5NcdsGj9BNdRHjBn59HbeDaRo/QTX... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l58p7c2t/7ea0ca46-cc8b-4422-b73e-f08cc6b78488/88454150-fcab-11ec-b3ff-876bf9d6c2bb/file-1l58p7c2u.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l58p7c2t/7ea0ca46-cc8b-4422-b73e-f08cc6b78488/884... | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l9xkbisd/efd2d97b-df67-43d9-88b5-6fd71b77a3ea/e4cbcfe0-5988-11ed-aea2-a1da9caa44e6/file-1l9xkbise.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l9xkbisd/efd2d97b-df67-43d9-88b5-6fd71b77a3ea/e4cbcfe0-5988-11ed-aea2-a1da9caa44e6/fi... | mcq | jee-main-2022-online-27th-june-morning-shift | 2,425 |
1l58jrl1s | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Halogenation of which one of the following will yield m-substituted product with respect to methyl group as a major product?</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l5ahskqh/f7d8ef32-92b8-404b-8a2d-fbbe3c10273b/1f373e90-fda8-11ec-9895-953d7c4166fb/file-1l5ahskqi.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l5ahskqh/f7d8ef32-92b8-404b-8a2d-fbbe3c10273b/1f3... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l9bm3j71/e1a03583-83f5-4782-9a0e-d2c5c7773c72/9a9bb9d0-4d76-11ed-8605-07329b7ce2fb/file-1l9bm3j72.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l9bm3j71/e1a03583-83f5-4782-9a0e-d2c5c7773c72/9a9bb9d0-4d76-11ed-8605-07329b7ce2fb/fi... | mcq | jee-main-2022-online-26th-june-evening-shift | 2,426 |
1l5be58cx | chemistry | haloalkanes-and-haloarenes | haloarenes | <p><img src="data:image/png;base64,UklGRpQIAABXRUJQVlA4IIgIAACwcQCdASoAA+EAP4G82GW2LqynIlCpQsAwCWlu4W0RG/Pn882oMdPFR2zu//P2Mlf//1OFrLXOhuFUQDoIVRAOghVEA6CFUQDoIVRAN/sBKGy7fs3RXCKwtM+ULeNV3QeUkqt41XdB5SSq3jVd0HlJKrx/HYXaJqJqdzcLcwvKSVW8arug8pJVbxqu6DyklVvGq7oTWREaOwzkYjoPKSVW8arug8pJVbxqu6DyklVvGq7praMU8HR7JVu8jTwheUkqt... | [] | null | 2 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8mf5vml/ca136105-eec6-4b4e-b73c-cec329ace866/e3b0d0d0-3f9b-11ed-9f98-894b173395fa/file-1l8mf5vmm.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8mf5vml/ca136105-eec6-4b4e-b73c-cec329ace866/e3b0d0d0-3f9b-11ed-9f98-894b173395fa/fi... | integer | jee-main-2022-online-24th-june-evening-shift | 2,427 |
1l5c6pwnh | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>In the given reaction sequence, the major product 'C' is :</p>
<p><img src="data:image/png;base64,UklGRt4RAABXRUJQVlA4INIRAACQYQCdASoAA2QAPm00lkgkIqKhJPGauIANiWlu4W5xG/N78p/3Hti/wv5ZehPjp93e3vrNZH+wP/S9E/5d9s/z39j/df40/u3+08G/lT/geoF+U/0H/B722AD9E/p3/W/vfjif4Pob4gP8y/uHpL39vo3sB/of0Lf/bzE/VvsLdJ0ngTKckb0ZaLCJDbEHbVU... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l5d0t1q1/a8ef216c-9b4c-4253-85ae-7170a1b32ef9/0b174e90-ff0c-11ec-834d-4120b930ffb4/file-1l5d0t1q2.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l5d0t1q1/a8ef216c-9b4c-4253-85ae-7170a1b32ef9/0b1... | ["B"] | null | C<sub>8</sub>H<sub>10</sub> DU = 9 – 5 = 4 <br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l8joyasn/19a79de5-7578-4843-b596-00b9cb921550/d2472370-3e1b-11ed-8603-87462af9f301/file-1l8joyaso.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l8joyasn/19a79de5-7578-4843-b596-0... | mcq | jee-main-2022-online-24th-june-morning-shift | 2,428 |
1l6gspr6x | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>In the presence of sunlight, benzene reacts with Cl<sub>2</sub> to give product, X. The number of hydrogens in X is _____________.</p> | [] | null | 6 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lc5mski3/85c37a10-7b28-47f6-beed-3ff82b5e73a0/451639b0-8591-11ed-a4e1-239777dab634/file-1lc5mski4.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lc5mski3/85c37a10-7b28-47f6-beed-3ff82b5e73a0/451639b0-8591-11ed-a4e1-239777dab634... | integer | jee-main-2022-online-26th-july-morning-shift | 2,429 |
1l6p7cuoy | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l6sdyn2l/2c62e7f2-969c-44f6-8e7d-216a8f4e00ef/766d5fd0-1b4b-11ed-8d4d-21aa0aaa21ed/file-1l6sdyn2m.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l6sdyn2l/2c62e7f2-969c-44f6-8e7d-216a8f4e00ef/766... | ["C"] | null | O–xylene has different resonating structures which will produce different ozonolysis products. <br/><br/>m–xylene
p–xylene and toluene have identical resonating structures which will give identical ozonolysis products. | mcq | jee-main-2022-online-29th-july-morning-shift | 2,430 |
1ldr45a93 | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Match List I with List II</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;bo... | [{"identifier": "A", "content": "A - IV, B - II, C - III, D - I"}, {"identifier": "B", "content": "A - II, B - I, C - IV, D - III"}, {"identifier": "C", "content": "A - II, B - I, C - III, D - IV"}, {"identifier": "D", "content": "A - III, B - II, C - IV, D - I"}] | ["B"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lfq8sny7/ca6abd79-4921-4ebc-8361-191f3e4fdb3a/a3b735e0-cc4b-11ed-a23b-d9d85339be62/file-1lfq8sny8.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lfq8sny7/ca6abd79-4921-4ebc-8361-191f3e4fdb3a/a3b735e0-cc4b-11ed-a23b-d9d85339be62... | mcq | jee-main-2023-online-30th-january-morning-shift | 2,432 |
1ldukhi7m | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with OH$$^-$$ is</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldvbdwa7/84edeca7-0429-4029-9553-1832664c4917/40e4a3f0-a77d-11ed-a5e3-ff739bca566a/file-1ldvbdwa8.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldvbdwa7/84edeca7-0429-4029-9553-1832664c4917/40e... | ["B"] | null | Aryl halides having E.W.G at O-or P-position have greater rate than the m-isomers towards nucleophilic aromatic substitution.
<br/><br/>
Hence the correct answer is (B) | mcq | jee-main-2023-online-25th-january-morning-shift | 2,433 |
1ldyhkrbs | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Number of moles of AgCl formed in the following reaction is _____________</p>
<p><img src="data:image/png;base64,UklGRmYHAABXRUJQVlA4IFoHAADQXwCdASoAA+8AP4G62GY2LaynIdE5EsAwCWlu/HyYMutQ3P17s97OXtFl7w6GIR9/SIUFBgh3n2jq1XOJp8riafK4mnyuJp8ZFBBdYNG1g0W3L/3r7YMN+elpCC6waNrBo2sGjawaOFmjnpaQgusGi6Nk4REzJfoj3xpA+iggusGjawaN... | [] | null | 2 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1le1xqr8j/eda81c3d-bc59-4c4a-988e-07ca3ded3363/63409240-ab21-11ed-b00f-ddbbe8b1b51b/file-1le1xqr8k.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1le1xqr8j/eda81c3d-bc59-4c4a-988e-07ca3ded3363/63409240-ab21-11ed-b00f-ddbbe8b1b51b/fi... | integer | jee-main-2023-online-24th-january-morning-shift | 2,434 |
1lgsyif5i | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Compound from the following that will not produce precipitate on reaction with $$\mathrm{AgNO}_{3}$$ is :</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lgtuprd5/22077dc6-ad51-4556-9d59-072ed7c6be26/ed186b90-e213-11ed-a71b-5bec0e8df462/file-1lgtuprd6.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lgtuprd5/22077dc6-ad51-4556-9d59-072ed7c6be26/ed1... | ["B"] | null | Compounds which results in the formation of stable
carbocation upon rating with AgNO<sub>3</sub> will produce
precipitate.
<br><br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1licm1tcy/a838cc3b-421f-4302-9fc6-60da14b56978/25e6e330-0031-11ee-a99f-43454a56aaa3/file-1licm1tcz.png?format=png" data-orsrc... | mcq | jee-main-2023-online-11th-april-evening-shift | 2,436 |
1lgyhf41e | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Identify the correct order of reactivity for the following pairs towards the respective mechanism</p>
<p><img src="data:image/png;base64,UklGRi4UAABXRUJQVlA4ICIUAABQ7ACdASpZAgADP4HA2WW2L7mnIfOJKzAwCWlu/C0P6ZgTERNF2/1w/X7vR/WbJ1PId3H+953uy/5off3rd7iTfz0AvP/oSUMf0vT/x6B4X//8D38/w7ZrxfB1yDmYsp6FxZYXuC9pnbdOkNuFhGnSVE9C... | [{"identifier": "A", "content": "(A), (B) and (D) only"}, {"identifier": "B", "content": "(A), (B), (C) and (D)"}, {"identifier": "C", "content": "(B), (C) and (D) only"}, {"identifier": "D", "content": "(A), (C) and (D) only"}] | ["B"] | null | All are correct<br/><br/>
(A) $\mathrm{S}_{\mathrm{N}} 2$ reaction decreases with increase in steric crowding.<br/><br/>
(B) $\mathrm{S}_{\mathrm{N}} 1$ reaction increases with stability of carbocation.<br/><br/>
(C) EAS reaction decreases with decrease in electron density.<br/><br/>
(D) Presence of electron withdrawin... | mcq | jee-main-2023-online-10th-april-morning-shift | 2,437 |
1lgysbbxq | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous $$\mathrm{NaOH}$$ is :</p>
<p><img src="data:image/png;base64,UklGRlALAABXRUJQVlA4IEQLAABQjwCdASoXAQADP4HA2mO2MS0mpHL5UsAwCWlu/C43nQ2HZ18/r/aV6jedftJ+a33npZ27fRRqB/luuhjf+Q8LlwCmIP2+AUxA8y8y9tZsUYg5LE9nJn/ugJNZitDH... | [{"identifier": "A", "content": "$$\\mathrm{C}>\\mathrm{A}>\\mathrm{D}>\\mathrm{B}$$"}, {"identifier": "B", "content": "$$\\mathrm{D}>\\mathrm{B}>\\mathrm{A}>\\mathrm{C}$$"}, {"identifier": "C", "content": "$$\\mathrm{A}>\\mathrm{B}>\\mathrm{D}>\\mathrm{C}$$"}, {"identifier": "D", "content": "$$\\mathrm{D}>\\mathrm{C}>... | ["B"] | null | Aryl halides are less reactive towards nucleophilic aromatic substitution with aqueous $\mathrm{NaOH}$. <br/><br/>Introduction of electron releasing group like $\mathrm{OCH}_3$ group further decreases its reactivity towards nucleophilic substitution. But the introduction of electron-withdrawing groups like $\mathrm{NO}... | mcq | jee-main-2023-online-8th-april-evening-shift | 2,438 |
jaoe38c1lsfjymym | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :</p>
<p><b>Assertion A</b> : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom.</p>
<p><b>Reason R</b> : Phenols react with halogen acids violently.</p>
<p>In the light of t... | [{"identifier": "A", "content": "A is true but R is false"}, {"identifier": "B", "content": "Both A and R are true but R is NOT the correct explanation of A"}, {"identifier": "C", "content": "A is false but R is true"}, {"identifier": "D", "content": "Both A and R are true and R is the correct explanation of A"}] | ["A"] | null | <p>Assertion (A): Given statement is correct because in phenol hydroxyl group cannot be replaced by halogen atom.</p>
<p>Reason (R) :</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lt2i8yfs/a3b3a91a-c1c8-4e29-ae60-b87749685129/d2a54d80-d468-11ee-9398-959420dc8e1b/file-1lt2i8yft.png?format=png" ... | mcq | jee-main-2024-online-29th-january-morning-shift | 2,439 |
luz2v3lv | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>In the following sequence of reaction, the major products B and C respectively are :</p>
<p><img src="data:image/png;base64,UklGRuQKAABXRUJQVlA4INgKAACQiwCdASoAAyEBP4HA2mS2MCynInLpesAwCWlu/D63gI3HZ19/sjam2ffbPux7zgM5ulf/4REzg0Fdy5NpM4NBnwaDPg0GfBoM+DQZ8GgzjM6Gg6tKaetdEXCTD4ps3FSvlTP5ahAIH9Zrw7sUjC35SLuDGM1DZUFiHv8Kx... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1luz252tk/2d55a92b-b28f-45e6-87aa-8ec6cf03696c/e989b080-fa1b-11ee-852e-b396d948e595/file-1luz252tl.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1luz252tk/2d55a92b-b28f-45e6-87aa-8ec6cf03696c/e98... | ["B"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lw3ng4gj/d9e2262e-515d-468e-986b-3fdb7447dc8c/96647e30-106e-11ef-86a3-8f076b6421f1/file-1lw3ng4gk.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lw3ng4gj/d9e2262e-515d-468e-986b-3fdb7447dc8c/96647e30-106e-11ef-86a3-8f076b6421f1... | mcq | jee-main-2024-online-9th-april-morning-shift | 2,440 |
lv7v4rht | chemistry | haloalkanes-and-haloarenes | haloarenes | <p>The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is _________</p>
<p><img src="data:image/png;base64,UklGRhIKAABXRUJQVlA4IAYKAADwagCdASoAA9MAP4HA2WS2ML+nIdRaC/AwCWlu8p9XgMm+VXRkpr/NP8Z+uPel49667CH9p3hf8Vnq7M/P/omm//TsoA/5lHOzRf/vmc/fv/+KiR/rm1FrHDBJW3cvMfREede3846VsYxfY5y19M... | [] | null | 2 | <p>Only II and III can be prepared from Sandmeyer’s
reaction.</p> | integer | jee-main-2024-online-5th-april-morning-shift | 2,442 |
lvb2acrn | chemistry | haloalkanes-and-haloarenes | haloarenes | <p><img src="data:image/png;base64,UklGRsAJAABXRUJQVlA4ILQJAADQbgCdASoAA9wAP4G+2GQ2MCympHIpSsAwCWlu/EsZGutQ1v1a7V8j+N9OV0//O/L/8fgW5IgUy1233BZphSbuzyr6yXP3R70zp8G059pfMBGmHt7K0l2yzRV/GIPytJdss0BC9ITo3aANoukxhpIXNd2yBWm8eD63dLO7DyzAHCaNr6XLUxB+VpLtlmir+MQflaS7ZZoqzsncQfvNUs6oB+VpLtlmir+MQflaS7ZZoq/i1hj1U76B+VpLtlmir+MQf... | [] | null | 15 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwbn1tjk/6e4eead1-60a6-4f18-b682-bd836a186aa0/4dd3dd00-14d3-11ef-8218-dfd8f7832166/file-1lwbn1tjl.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwbn1tjk/6e4eead1-60a6-4f18-b682-bd836a186aa0/4dd3dd00-14d3-11ef-8218-dfd8f7832166... | integer | jee-main-2024-online-6th-april-evening-shift | 2,443 |
rktozxqKIS8O2y9i | chemistry | haloalkanes-and-haloarenes | some-important-polyhalogens-compounds | The compound formed on heating chlorobenzene with chloral in the presence concentrated
sulphuric acid is | [{"identifier": "A", "content": "gammexene"}, {"identifier": "B", "content": "hexachloroethane "}, {"identifier": "C", "content": "Freon"}, {"identifier": "D", "content": "DDT"}] | ["D"] | null | $$DDT$$ is prepared by heating chlorbenzene and chloral with concentrated sulphuric acid
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265799/exam_images/nxwiiw2eywptcliwvgxo.webp" loading="lazy" alt="AIEEE 2004 Chemistry - Haloalkanes and Haloarenes Question 152 Engli... | mcq | aieee-2004 | 2,444 |
1NDiQGdoBtjRd5jW | chemistry | haloalkanes-and-haloarenes | some-important-polyhalogens-compounds | Which of the following on heating with aqueous KOH, produces acetaldehyde ? | [{"identifier": "A", "content": "CH<sub>3</sub>COCl"}, {"identifier": "B", "content": "CH<sub>3</sub>CH<sub>2</sub>Cl"}, {"identifier": "C", "content": "CH<sub>2</sub>ClCH<sub>2</sub>Cl"}, {"identifier": "D", "content": "CH<sub>3</sub>CHCl<sub>2</sub>"}] | ["D"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267170/exam_images/p83golpsc2xjpf61maek.webp" loading="lazy" alt="AIEEE 2009 Chemistry - Haloalkanes and Haloarenes Question 139 English Explanation"> | mcq | aieee-2009 | 2,445 |
uvAs196tZzWdZf85 | chemistry | haloalkanes-and-haloarenes | some-important-polyhalogens-compounds | What is DDT among the following? | [{"identifier": "A", "content": "Greenhouse gas"}, {"identifier": "B", "content": "A fertilizer"}, {"identifier": "C", "content": "Biodegradable pollutant"}, {"identifier": "D", "content": "Non\u2013biodegradable pollutant\n"}] | ["D"] | null | $$DDT$$ is a non-biodegradable pollutant. | mcq | aieee-2012 | 2,446 |
QKjkxVH5bPaZitm7 | chemistry | haloalkanes-and-haloarenes | some-important-polyhalogens-compounds | The major organic compound formed by the reaction of 1, 1, 1– trichloroethane with silver powder is:
| [{"identifier": "A", "content": "2- Butyne"}, {"identifier": "B", "content": "2- Butene"}, {"identifier": "C", "content": "Acetylene"}, {"identifier": "D", "content": "Ethene"}] | ["A"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267245/exam_images/z3pgqp3hohmuscmc8eus.webp" loading="lazy" alt="JEE Main 2014 (Offline) Chemistry - Haloalkanes and Haloarenes Question 141 English Explanation"> | mcq | jee-main-2014-offline | 2,448 |
Upud2y2sCAOmjWB3 | chemistry | hydrocarbons | aromatic-hydrocarbons | Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so
obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed
contains | [{"identifier": "A", "content": "mixture of o\u2212 and p\u2212bromotoluenes "}, {"identifier": "B", "content": "mixture of o\u2212 and p\u2212dibromobenzenes "}, {"identifier": "C", "content": "mixture of o\u2212 and p\u2212bromoanilines "}, {"identifier": "D", "content": "mixture of o\u2212 and m\u2212bromotoluenes"}... | ["A"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267109/exam_images/g9qmxfgms5skssqsrq3v.webp" loading="lazy" alt="AIEEE 2008 Chemistry - Hydrocarbons Question 125 English Explanation 1">
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v... | mcq | aieee-2008 | 2,450 |
NnU9I4K1GO3gTEvoyc6bJ | chemistry | hydrocarbons | aromatic-hydrocarbons | Which compound (s) out of the following is/are not aromatic ?
<br/><br/><img src="data:image/png;base64,UklGRnwOAABXRUJQVlA4IHAOAAAwiwCdASoAAxoBP4G+12U2L6wnIvMpisAwCWlu/EsYEYcHZ19/rF/uu4XHTs/Oyf9+4y1958UL15Sv12ydHrP/rwdxSTDsz4WVWZ8LKrM+FlVmfCyqzPhZVZnty9lIgRb/OThyIEW/zk4ciBFv85OHIgRb/OTeLbAfecsO6SCDkWE9YXadlFQZpXWph1k... | [{"identifier": "A", "content": "(A) and (C)"}, {"identifier": "B", "content": "(C) and (D)"}, {"identifier": "C", "content": "(B) "}, {"identifier": "D", "content": "(B), (C) and (D)"}] | ["D"] | null | Compounds which follow (4n + 2)$$\pi $$ rule, are aromatic.
Hence, compounds in option B, C, D are not aromatic. | mcq | jee-main-2019-online-11th-january-morning-slot | 2,451 |
xKhGbyEQcX5RqWnbUw1klrthpi0 | chemistry | hydrocarbons | aromatic-hydrocarbons | The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is :<br/><br/>
<img src="data:image/png;base64,UklGRlASAABXRUJQVlA4IEQSAACwAQGdASprAgADP4HA3GU2MK2nItGY+sAwCWlu8p9Xoco/sZ51K+VN0Hb5+9Edwqv6w71As9nbX8gvvDoMoe6v/oA07vtj+R//vTp+JiB+yLb4EMQGQPSFkL2VWg1pntM9p... | [{"identifier": "A", "content": "(iv) < (i) < (ii) < (iii)"}, {"identifier": "B", "content": "(iv) < (iii) < (ii) < (i)"}, {"identifier": "C", "content": "(iv) < (i) < (iii) < (ii)"}, {"identifier": "D", "content": "(i) < (ii) < (iii) < (iv)"}] | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l3veua4b/5e599ad3-8b29-4523-8b01-802644914a11/9a2048b0-e190-11ec-881d-11951e163da2/file-1l3veua4c.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l3veua4b/5e599ad3-8b29-4523-8b01-802644914a11/9a2048b0-e190-11ec-881d-11951e163da2/fi... | mcq | jee-main-2021-online-24th-february-evening-slot | 2,453 |
mmGUwBBHnUbWiqmGtM1kltac45k | chemistry | hydrocarbons | aromatic-hydrocarbons | The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is : | [{"identifier": "A", "content": "$$C{H_3}COCl/AlC{l_3},B{r_2}/AlB{r_3},HN{O_3}/{H_2}S{O_4},Zn/HCl$$"}, {"identifier": "B", "content": "$$C{H_3}COCl/AlC{l_3},Zn - Hg/HCl,B{r_2}/AlB{r_3},HN{O_3}/{H_2}S{O_4}$$"}, {"identifier": "C", "content": "$$B{r_2}/AlB{r_3},C{H_3}COCl/AlC{l_3},HN{O_3}/{H_2}S{O_4},Zn/HCl$$"}, {"identi... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263840/exam_images/nhgr4ogcrqkvf6fnocbw.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 Question 72 English Explanation"> | mcq | jee-main-2021-online-25th-february-evening-slot | 2,454 |
1krrixp9z | chemistry | hydrocarbons | aromatic-hydrocarbons | Benzene on nitration gives nitrobenzene in presence of HNO<sub>3</sub> and H<sub>2</sub>SO<sub>4</sub> mixture, where : | [{"identifier": "A", "content": "both H<sub>2</sub>SO<sub>4</sub> and HNO<sub>3</sub> act as a bases"}, {"identifier": "B", "content": "HNO<sub>3</sub> acts as an acid and H<sub>2</sub>SO<sub>4</sub> acts as a base"}, {"identifier": "C", "content": "both H<sub>2</sub>SO<sub>4</sub> and HNO<sub>3</sub> act as an acids"}... | ["D"] | null | Reagent for nitration of Benzene<br><br>$$\mathop {{H_2}S{O_4}}\limits_{(Acid)} + \mathop {HN{O_3}}\limits_{(Base)} \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over
{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} HSO_4^\Theta + {H_2}\mathop N\limits^ \oplus {O_3}$$<br><br>$${H_2}\mathop N\limi... | mcq | jee-main-2021-online-20th-july-evening-shift | 2,455 |
1ks1ionyw | chemistry | hydrocarbons | aromatic-hydrocarbons | The correct sequence of correct reagents for the following transformation is :<br/><br/><img src="data:image/png;base64,UklGRowKAABXRUJQVlA4IIAKAAAQQACdASpzAZ0APm0ylkkkIqIhIfEqiIANiWlu5KgW8J1qGd+gH8W/EDwX/tn5EeJH6j+0fkB6OOdPnj+Je7l9s/l38+/Wz2L/2/9A8afbj/QeSL+m/xb9g/6/6Nf0d/mHiCVm9AL2M+Tf4D+Q/zv/zf275C/c/8l6AeIF+UnlY/op... | [{"identifier": "A", "content": "(i) Fe, HCl<br><br>(ii) Cl<sub>2</sub>, HCl<br><br>(iii) NaNO<sub>2</sub>, HCl, 0$$^\\circ$$C<br><br>(iv) H<sub>2</sub>O/H<sup>+</sup>"}, {"identifier": "B", "content": "(i) Fe, HCl<br><br>(ii) NaNO<sub>2</sub>, HCl, 0$$^\\circ$$C<br><br>(iii) H<sub>2</sub>O/H<sup>+</sup><br><br>(iv) Cl... | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263672/exam_images/ome4crofkn1h4np367os.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 27th July Evening Shift Chemistry - Hydrocarbons Question 56 English Explanation"> | mcq | jee-main-2021-online-27th-july-evening-shift | 2,456 |
jaoe38c1lscrx897 | chemistry | hydrocarbons | aromatic-hydrocarbons | <p>The final product A, formed in the following reaction sequence is:</p>
<p><img src="data:image/png;base64,UklGRhYdAABXRUJQVlA4IAodAACQjQCdASoAA7EAPm00l0gkIqIhIzJKiIANiWlu/HyZq+tQyf1S/r/2b+JP9u/J7xOfRv4H+3/tnyqOq/NL+R/Yn8z/Xfb5+7/5v+1+PPyy/u/UC/Jf55/jfuE4aS2H/D9QX22+u/6b/Aflf6ZX/L/d/VL7RewB/OvOT/neGVQE/ov+N/aH2If/T/T... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lsd35208/ee176b59-483a-4522-a52e-b7519688d7f2/24fe1e80-c66e-11ee-9e75-ed145f26bf63/file-6y3zli1lsd35209.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1lsd35208/ee176b59-483a-4522-a52... | ["C"] | null | <p>$$\mathrm{PhCH}=\mathrm{CH}_2 \xrightarrow{\mathrm{B}_2 \mathrm{H}_6 / \mathrm{H}_2 \mathrm{O}_2 \mathrm{OH}^{-}} \mathrm{PhCH}_2 \mathrm{CH}_2 \mathrm{OH}$$</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lt1lp3e4/bd3d6fc4-0b56-4e6e-9b06-87d4e280c88e/86281ac0-d3e9-11ee-999e-8967c8762139/file... | mcq | jee-main-2024-online-27th-january-evening-shift | 2,457 |
lv5gt4xf | chemistry | hydrocarbons | aromatic-hydrocarbons | <p>Major product B of the following reaction has ________ $$\pi$$-bond.</p>
<p><img src="data:image/png;base64,UklGRqYUAABXRUJQVlA4IJoUAACQcQCdASoAA7AAPm00lkkkIqIhIbE6GIANiWlu4XYBG/OH8l/23tE/vH5beJf51/GfmDyIYmXyP7T/ov7t58f838lfNf5cagX5X/Ov8pvWYAPzv+vf77/BfkH6YmpH4Q/5nuAcEX6h7Af9N/x3/m9RX6x8+/1T+1fwH/zv+3/9X+/e3D6+f3p9n... | [] | null | 5 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/jaoe38c1lw94a1ne/6a35eba7-e357-4ec1-a08a-d9b20fceb491/53cf63a0-1370-11ef-ac66-753153db1bf0/file-jaoe38c1lw94a1nf.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/jaoe38c1lw94a1ne/6a35eba7-e357-4ec1-a08a-d9b20fceb491/53cf63a0-1370-1... | integer | jee-main-2024-online-8th-april-morning-shift | 2,458 |
lv7v4rpy | chemistry | hydrocarbons | aromatic-hydrocarbons | <p>Given below are two statements :</p>
<p>Statement I :
Nitration of benzene involves the following step -</p>
<p><img src="data:image/png;base64,UklGRnwRAABXRUJQVlA4IHARAAAQaACdASoAA6MAPm02mEikIyKhIzLJ8IANiWlu4XQuArdbjn5a/2Pa7/nPyk7CH2z7VcsZ6b7i/xvXb/Nd7PAL9nf6redwAfon9a/2fiK6l+QBwXnqvsD/p/0MM/T1t7Cv7C9YcbqVwKPrQVXG9... | [{"identifier": "A", "content": "Both Statement I and Statement II are incorrect\n"}, {"identifier": "B", "content": "Statement I is correct but Statement II is incorrect\n"}, {"identifier": "C", "content": "Statement I is incorrect but Statement II is correct\n"}, {"identifier": "D", "content": "Both Statement I and S... | ["B"] | null | <p>Due to Lewis base formation electrophile stops/greatly slowed. Hence statement 2 is false
while statement 1 is true.</p> | mcq | jee-main-2024-online-5th-april-morning-shift | 2,459 |
TbB49EEyllHLCA4I | chemistry | hydrocarbons | properties-and-preparation-of-alkanes | Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of
mono substituted alkyl halide ? | [{"identifier": "A", "content": "Tertiary butyl chloride"}, {"identifier": "B", "content": "Neopentane"}, {"identifier": "C", "content": "Isohexane"}, {"identifier": "D", "content": "Neohexane"}] | ["B"] | null | <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264205/exam_images/kte403rfh8dbuni3gvnn.webp" loading="lazy" alt="AIEEE 2012 Chemistry - Hydrocarbons Question 121 English Explanation"> | mcq | aieee-2012 | 2,461 |
ipjGSX6f0qTqN81aZasAz | chemistry | hydrocarbons | properties-and-preparation-of-alkanes | Consider the reaction sequence below :
<br/><br/><img src="data:image/png;base64,UklGRvALAABXRUJQVlA4IOQLAAAQhgCdASoAA/gAP4G82GS2LyynI9GpesAwCWlu+F8UooyeLZbueabR+OZu370JvDz4jI7/+FIizLgyW5Xm0a6oSUlNdcNzICY8CJHM6d9g6BQ0OXPaRupS6CBImH5dGVEw/LoyomH5dGVEAVroOAhFm2aR5mlqsv3Awx+rcC4CaNMYrMJj1+AibKEE2UIJsoQTZQgmyhBNlCCbKEGDt2p... | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1l82y3c1q/7f377705-6c85-4845-b820-4159210390ab/3d69cde0-34e6-11ed-b84c-a3c7c2456516/file-1l82y3c1r.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1l82y3c1q/7f377705-6c85-4845-b820-4159210390ab/3d6... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l82y0g7g/9e26c7cf-1a01-4246-aa69-ecf1fcb2ca16/ed32d4c0-34e5-11ed-b84c-a3c7c2456516/file-1l82y0g7h.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l82y0g7g/9e26c7cf-1a01-4246-aa69-ecf1fcb2ca16/ed32d4c0-34e5-11ed-b84c-a3c7c2456516/fi... | mcq | jee-main-2016-online-10th-april-morning-slot | 2,462 |
1lgsy1ntw | chemistry | hydrocarbons | properties-and-preparation-of-alkanes | <p>The major product formed in the following reaction is</p>
<p><img src="data:image/png;base64,UklGRmIRAABXRUJQVlA4IFYRAADwWgCdASoAA4EAPm02mEikIyKhIdLJwIANiWlu4XShG/OZ87/2DtF/tP5Dedfj+9TSNfAbUj+V/bD77/T/3Y9nf1Y8VfkR/afkl8Bf5N/L/8/vT4Afzf+qf8Lw/dTXv97AH8v/rH/R9Zf+h4RdAL+k/471a/7r/5f6X0DfWXsF/rZ/3fXh9lHoxC48qQgAHhZVWKFT... | [{"identifier": "A", "content": "D only"}, {"identifier": "B", "content": "B only"}, {"identifier": "C", "content": "A only"}, {"identifier": "D", "content": "C only"}] | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1licni452/5101ffb2-914e-45c2-ac57-6402a0094239/d44e0160-0036-11ee-bcb6-bdff5ecf1695/file-1licni453.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1licni452/5101ffb2-914e-45c2-ac57-6402a0094239/d44e0160-0036-11ee-bcb6-bdff5ecf1695/fi... | mcq | jee-main-2023-online-11th-april-evening-shift | 2,464 |
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