Question

Explain chlorobenzene is a deactivated molecule

Answer 1

organic chemistry - Reactivity of chlorobenzene and benzene in ... Cl is a weak ring deactivating group. This means chlorobenzene is less reactive towards electrophiles than benzene. ... But chlorine is more electronegative than carbon, and so draws electrons in the ring towards itself. That makes the electron density around the ring rather less in chlorobenzene.