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Electrophilic substitution in case of ar...

Electrophilic substitution in case of aromatic amines takes place more readily than in benzene.

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It is because -`NH_2` group is electron releasing which increases electron density on benzene ring and there is -ve charge at o- and p- position is resonating structure of aniline. Thus, it activates the benzene ring for electrophilic substitution.
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