Question
Question: Which of the following on heating with chloroform and alcoholic potassium hydroxide yields carbylami...
Which of the following on heating with chloroform and alcoholic potassium hydroxide yields carbylamines?
A
Phenylmethanamine
B
N-Methylethanamine
C
N,N-Dimethylbenzenamine
D
N-Phenylaniline
Answer
Phenylmethanamine
Explanation
Solution
Only primary amines react in the carbylamine reaction. Among the given options, Phenylmethanamine (benzylamine, C₆H₅CH₂NH₂) is a primary amine, while the others are either secondary or tertiary amines, which do not participate in this reaction.
- Carbylamine reaction: Only primary amines react with CHCl₃ and alcoholic KOH to give isocyanides.
- Option (A) is a primary amine; Options (B), (C), and (D) are not primary amines.