Aryl halides are less reactive towards nucleophilic substitution because
Answer»
LESS stable carbonium ion Due to large` C-CI` bond energy INDUCTIVE effect Resonance stabilization and `sp^(2)`-hybridisation of `C` ATTACHED to halide .
SOLUTION :Resonance stablization and the hybridisation of `C` attached to halides cis `p^(2)` .