In Which one of the followingpoly substitution otakes place? – InterviewSolution

1.	In Which one of the followingpoly substitution otakes place?
Answer» Solution :SINCE `CH_(3)` group is electron donating, hence electron in toulence is higher than in benzene and hence poly-substitution occurs during FC alkylation when the benzene ring CONTAINS electron donating groups. All other grous (i.e. `CH_(3)CO,NO_(2) and SO_(3)H)` are electron WITHDRAWING and the hence in these CASES polysubstitution does not occur

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