Q. Assertion:Chlorobenzene is more reactive than benzene towards the electrophilic substitution reaction.
Reason: Resonance destabilises the carbocation.

 4572  204 AIIMSAIIMS 2016Haloalkanes and Haloarenes Report Error

Solution:

Chlorobenzene is less reactive than benzene towards the electrophilic substitution reactions due to -I-effect.