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Allyl chloride is hydrolysed more readil...

Allyl chloride is hydrolysed more readily than n-propyl chloride. Why ?

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The hydrolysis is generally carried with aqueous KOH. Allyl chloride can be hydrolysed more readily than n-propyl chloride because allyl carbocation formed in the reaction is resonance stabilised.

In case of n-propyl chloride, the carbocation `(CH_(3)-CH_(2)-overset(o+)(C)H_(2))` expected to be formed is not stabilised. therefore, hydrolysis of n-propyl chloride is comparatively very difficult.
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