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Q. No.A reaction among the following can generate isonitriles as a major product.
A. \(R-X + HCN \rightarrow \)
B. \(R-X + AgCN \rightarrow \)
C. \(R-X + KCN \rightarrow \)
D. \(R-X + NaCN \xrightarrow [C_2H_5OH] {H_2O} \)
Choose the most appropriate answer from the options given below:
1.
(D) only
2.
(C) and (D) only
3.
(B) only
4.
(A) and (B) only
Subtopic: Chemical Properties |
76%
Level 2: 60%+
NEET - 2023
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Given below are two statements:
In light of the above statements, choose the correct answer from the options given below :
1. Statement I is incorrect but statement II is correct.
2. Both statement I and Statement II are correct.
3. Both statement I and Statement II are incorrect.
4. Statement I is correct but statement II is incorrect.
| Statement I: | Diphenyl is obtained from chlorobenzene using the Fittig reaction. |
| Statement II: | Chlorobenzene does not undergo Friedel Craft's reaction. |
In light of the above statements, choose the correct answer from the options given below :
1. Statement I is incorrect but statement II is correct.
2. Both statement I and Statement II are correct.
3. Both statement I and Statement II are incorrect.
4. Statement I is correct but statement II is incorrect.
Subtopic: Haloarenes: Directive Influence of Halogen |
69%
Level 2: 60%+
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The correct order for the rate of \(\alpha\) , \(\beta\)-dehydrohalogenation for the following compounds is:
(i)  |
(ii)  |
(iii)  |
| 1. | (i) < (ii) < (iii) | 2. | (ii) < (i) < (iii) |
| 3. | (iii) < (ii) < (i) | 4. | (ii) < (iii) < (i) |
Subtopic: Chemical Properties |
56%
Level 3: 35%-60%
NEET - 2023
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The following compound would be classified as:
| 1. | Vinylic halide | 2. | Benzylic halide |
| 3. | Aryl halide | 4. | Allylic halide |
Subtopic: Introduction and Physical Properties |
69%
Level 2: 60%+
NEET - 2023
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Subtopic: Isomerism & Chirality |
62%
Level 2: 60%+
JEE
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In which of the following option the reaction does not match with their correct product?
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
Subtopic: Chemical Properties |
87%
Level 1: 80%+
JEE
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Match the organic compound given in Column I with their names in Column II. Select the correct option.
1. a=ii; b=iii; c=i; d=iv
2. a=iv; b=i; c=ii; d=iii
3. a=iv; b=iii; c=i; d=ii
4. a=ii; b=iv; c=i; d=iii
| Column I | Column II | |
| (a) CH2Cl2 | (i) | neo-Pentyl chloride |
| (b) (CH3)3CCH2Cl | (ii) | Ethylidene chloride |
| (c) CH3CHCl2 | (iii) | Ethylene dichloride |
(d)  |
(iv) | Methylene chloride |
2. a=iv; b=i; c=ii; d=iii
3. a=iv; b=iii; c=i; d=ii
4. a=ii; b=iv; c=i; d=iii
Subtopic: Introduction and Physical Properties |
91%
Level 1: 80%+
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Subtopic: Chemical Properties |
79%
Level 2: 60%+
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Which of the following methods is incorrect for the synthesis of alkenes?
1. Treatment of alkynes with Na in liquid NH3
2. Heating alkyl halides with alcoholic KOH
3. Treating alkyl halides in aqueous KOH solution
4. Treating vicinal dihalides with Zn metal
1. Treatment of alkynes with Na in liquid NH3
2. Heating alkyl halides with alcoholic KOH
3. Treating alkyl halides in aqueous KOH solution
4. Treating vicinal dihalides with Zn metal
Subtopic: Chemical Properties |
78%
Level 2: 60%+
NEET - 2022
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Predict the order of reactivity of the following four isomers towards SN2 reaction.
(I) CH3CH2CH2CH2Cl
(II) CH3CH2CH(Cl)CH3
(III) (CH3)2CHCH2Cl
(IV) (CH3)3CCl
(I) CH3CH2CH2CH2Cl
(II) CH3CH2CH(Cl)CH3
(III) (CH3)2CHCH2Cl
(IV) (CH3)3CCl
| 1. | (IV) > (III) > (II) > (I) |
| 2. | (I) > (II) > (III) > (IV) |
| 3. | (I) > (III) > (II) > (IV) |
| 4. | (IV) > (II) > (III) > (I) |
Subtopic: Chemical Properties |
68%
Level 2: 60%+
NEET - 2022
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