Haloalkanes and Haloarenes

Question

Explain the following:

Methyl chloride is hydrolysed more readily than chlorobenzene.

Answer

The lone pair of chlorine atom is delocalised over the conjugated double bond ring of benzene which adds a double bond character to the C-Cl bond of the chlorobenzene which makes the bond shorter, so hydrolysed becomes difficult while in alkyl halides methyl chloride there is a single bond and polarity too which is easily hydrolyzed.

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