Benzyl chloride will get easily hydrolysed as the halogen is attached to 1° carbon atom.

Benzyl chloride can undergo SN₁- SN₁ mechanism easily to form benzyl carbonium ion. Benzyl carbonium ion found after losing the leaving group(-Cl) is very stable because of resonance hence reacts easily. It is the most stable carbocation. So the final answer is“ Benzyl chloride is more easily hydrolysed by aqueous NaOH than that of chlorobenzene. ”