on hydrolysis in presence of aqueous acetone gives

K)

L)

 

 

 

M)

 The rection follows partly SN1 and partly $S{N}^2$ mechanism in aqueous acetone. In  $S{N}^1$ mechanism, the  $2^{\circ }$carbocaton formed due to the loss of $C{l}^{-}$  undergoes rearrangement forming more stable benzylic carbocation containing  $-OC{H}_3$ group at the p-position. Therefore, products (K) and (L) would be formed.