Assertion (A): | Nitration of benzene is an example of an electrophilic substitution reaction. |
Reason (R): | It is a biomolecular reaction with an order of reaction 2. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion(A): | H—Br addition with propene in the presence of organic peroxide gives anti-Markovnikov's addition product. |
Reason(R): | Organic peroxide causes heterolytic cleavage of H—Br. |
1. | Both (A) and (R) are True, and (R) correctly explains (A). |
2. | Both (A) and (R) are True, but (R) does not correctly explain (A). |
3. | (A) is True, but (R) is False. |
4. | Both (A) and (R) are False. |
A. | \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CHO}\) |
B. | \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{C}=\mathrm{C} \left(\mathrm{CH}_{3}\right)_{2}\) |
C. | \( \ \mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\) |
D. | \( \mathrm{CH}_{3} \mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{2}-\mathrm{CH}_{3}\) |
E. | \( \mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}_{2}\) |
F. | \(\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}, \) |
Assertion (A): | Treatment of 1,2-dibromopropane with zinc produces cyclopropane. |
Reason (R): | The reaction of alkyl halides with any metal is called a substitution reaction. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Trans-but-2-ene has a higher boiling point than cis-but-2-ene. |
Reason (R): | Trans-but-2-ene is more polar than cis-but-2-ene. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion(A): | The addition of HBr on 2-butene gives two isomeric products. |
Reason(R): | The addition of HBr on 2-butene follows Markovnikov's rule. |
1. | Both (A) and (R) are True, and (R) correctly explains (A). |
2. | Both (A) and (R) are True, but (R) does not correctly explain (A).. |
3. | (A) is True, but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion (A): | 2-Bromobutane, in reaction with sodium ethoxide in ethanol, gives 1-butene as a major product. |
Reason (R): | 1-Butene is more stable than 2-butene. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |