FC-reaction

B

A

D hai!!
Soumya:)

The Friedel-Crafts reaction often leads to the introduction of more than one alkyl group in the molecule. The reason for such
undesired polyalkylation is as follows: Upon introduction of one alkyl group, the resultant compound becomes more
activated than the starting material and actually reacts faster with the electrophile, leading to the almost inevitable second
alkylation. So I think answer is (A)

b