# 10.17     Out of $C_{6}H_{5}CH_{2}Cl$  and $C_{6}H_{5}CHCl C_{6}H_{5}$ , which is more easily hydrolysed by aqueous KOH.

Hydrolysis by KOH will take place by the formation of a carbocation in its rate-determining step. So the compound having stable carbocation will hydrolyse faster.

The carbocations of both the compounds are given below:-

It is clear that carbocation of $C_{6}H_{5}CHCl C_{6}H_{5}$ is more stable.

Hence  $C_{6}H_{5}CHCl C_{6}H_{5}$ will hydrolyse faster than $C_{6}H_{5}CH_{2}Cl$.

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