Among the following amines, which one ha...

Among the following amines, which one has the highest `pK_b` value in aqueous solution ?

A

Methanamine

B

N,N-dimethylaniline

C

Ethanamine

D

Benzenamine

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The correct Answer is:

D

In benzamine, there is resonance effect which decreases its basicity relative to other amines. Due to which it has greatest `pK_b` value.

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