Haloarenes are less reactive than haloakanes towards nucleophilic substitution reaction. Why?
As C-X bond in aryl halide acquires a partial double bond character due to resonance while the C-X bond in alkyl halide is a pure single bond. Hence, Bond Strength of Haloarenes is more than that of Haloalkanes. So, Haloarenes are less reactive than Haloalkanes towards nucleophilic substitution.