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

Question:

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

  1. III > II > IV > I

  2. $\mathrm{III}>\mathrm{II}>\mathrm{I}>\mathrm{IV}$

  3. $\mathrm{IV}>\mathrm{II}>\mathrm{III}>\mathrm{I}$

  4. $\mathrm{II}>\mathrm{III}>\mathrm{I}>\mathrm{IV}$

Correct Option: , 2

Solution:

Rate of reaction $\propto$ Electrophilicity of carbonyl carbon, so, E.W.G. increases rate while E.R.G. decreases the rate.

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