question_answer

Which one of the following esters gets hydrolyzed most easily under alkaline conditions?                            

A)       

B)

C)        

D)                 

Correct Answer: A

Solution :

Electron withdrawing group attach to the benzene ring increases the reactivity towards nucleophilic sustitution reaction. Since, - \[N{{O}_{2}}\] group is strong electron withdrawing group. Hence, in basic medium ester containing \[-N{{O}_{2}}\] group will hydrolyzed most easily.