Q.
Among the following compounds (I-III) the correct order of reaction with the electrophile is
A) II>III>I
B) III<I<II
C) I>II>III
D) I$\approx$II>III
Explanation
(c)
Activating groups like $–OCH_{3}, - OH$ etc activates the benzene ring towards electrophilic substitution while deactivating groups like$- NO_{2}, - COOH$ etc. deactivates the benzene ring towards electrophilic substitution. Thus, order of reaction towards electrophile (of the given compounds) is as
I>II>III.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.