Question

Presence of a nitro group in a benzene ring 

(a) activates the ring towards electrophilic substitution.

(b) renders the ring basic

(c) deactivates the ring towards nucleophilic substitution

(d) deactivates the ring towards electrophilic substitution

Answer 1

Correct Option (d) deactivates the ring towards electrophilic substitution

Explanation:

- NO₂ group withdraw electron from the ring, thus shows -M effect and makes ring more electron deficient. Hence, - NO₂ deactivates the ring tor elctrophilic substitution.