Question

The correct order of reactivity in electrophilic substitution reaction of the following compounds is :

• A. \( B > C > A > D \)
• B. \( D > C > B > A \)
• C. \( A > B > C > D \)
• D. \( B > A > C > D \)

Answer 1

The Correct Option is D

The effect of substituents on electrophilic substitution reactions is as follows:

• \(-\text{CH}_3\) shows \(+M\) and \(+I\).
• \(-\text{Cl}\) shows \(+M\) and \(-I\) but inductive effect dominates.
• \(-\text{NO}_2\) shows \(-M\) and \(-I\).

Electrophilic substitution order is based on \( \alpha + M \) and \( +I \), with the highest reactivity for the methyl group. Hence, order is \( B > A > C > D \).