Consider the given two statements:
| Assertion (A): | KCN reacts with methyl chloride to give methyl isocyanide. |
| Reason (R): | \(CN^-\) is an ambident nucleophile. |
| 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. | (A) is False but (R) is True. |
Hint: Nucleophilic substitution reaction.
Explanation:
KCN reacts with methyl chloride to give methyl cyanide as a major product. Hence, the assertion is wrong
The ambident nucleophile is an anionic nucleophile whose negative charge is delocalized by resonance over two, unlike atoms. Thus, CN- is an ambident nucleophile. Hence, fourth is the correct answer.
The reaction is as follows:
CH3Cl + KCN ----> CH3CN + KCl
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