1.

Why are aryl halides less reactive towards nucleophilic substitution reactions than alkyl halides? Explain

Answer»

Solution :This is due to the following reasons:
(i) Haloarene involves resonance. eg. consider chloro berizene.
It has 5 resonating structures.

Haloalkane has only one structure eg. `CH_(3)-Cl`.
`:.` Haloarenes are more STABLE.
(ii) `"In Haloarene" = overset(SP^(2))overset(|)C-X` bond is lens POLAR than in haloalkanes.
(III) In haloarenebond length is less than in haloalkanes


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