MHT CET 2024 Chemistry question

Which among following is a strongest base?

(A)Benzenamine
(B)PhenylmethanamineCorrect
(C)N, N-Dimethylbenzenamine
(D)N- Methylbenzenamine

Answer: (B)

Solution

Basicity depends on the availability of the lone pair on nitrogen. In benzenamine (aniline), N-methylbenzenamine and N,N-dimethylbenzenamine the nitrogen lone pair is conjugated with the benzene ring (delocalised), so they are weak bases

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Question ID VK-095488