Why are aryl halides significantly less reactive than alkyl halides towards nucleophilic substitutio — Haloalkanes and Haloarenes Chemistry Question

💡 Solution & Explanation

In aryl halides, the lone pairs of electrons on the halogen atom participate in delocalization with the benzene ring. This $p-\pi$ resonance imparts partial double-bond character to the $C-X$ bond, making it difficult to cleave.