The value of K_b (base dissociation constant) is highest in the case of

JEE Main Chemistry question

The value of (base dissociation constant) is highest in the case of

(A)-MethoxyanilineCorrect
(B)-Chloroaniline
(C)-Nitroaniline
(D)-Methylaniline

Answer: (A)

Solution

A -methoxy group is a strong electron donor by resonance, substantially increasing the electron density on the ring nitrogen and thus its basicity (highest among these). -Chloro and -nitro groups are

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Question ID VK-150559