question_answer

The decreasing order of ease of alkaline  hydrolysis for the following esters in

(I)

(II)

(III)

(IV)

  [JEE Main Online Paper (Held On 10-Jan-2019 Morning]

A) \[III>II>IV>I\]              

B)                  \[IV>II>III>I\]

C)                  \[III>II>I>IV\]              

D)                  \[II>III>I>IV\]

Correct Answer: C

Solution :

Rate of alkaline Hydrolysis of ester occur through nucleophillic substitution by addition elimination in which attack of nucleophile is RDS Rate of SNAE \[\propto \] the charge on Alyl carbon so rate of alkaline Hcldrolysis is