Question

Arrange in their decreasing order of rate of electrophilic aromatic substitution.

• A. i $>$ ii $>$ iii
• B. iii $>$ ii $>$ i
• C. iii $>$ i $>$ ii
• D. i $>$ iii $>$ iii

Answer 1

The correct option is A i $>$ ii $>$ iii

A phenyl group is a deactivating group.

The reactivity towards EAS decreases if a deactivating group is attached to benzene.

Therefore, the correct order is a$>$b$>$c