JEE Main201910 Jan 2019Morning ShiftChemistryCarboxylic Acid DerivativesActual
The decreasing order of ease of alkaline hydrolysis for the following esters is
Options
- AIII > II > IV > I
- BIII > II > I > IV
- CIV > II > III > I
- DII > III > I > IV
Correct answer
B. III > II > I > IV
Step-by-step solution
The rate of hydrolysis will depend on how likely a molecule is to accepting O H - ions. Rate of hydrolysis α - M effect or - I of ester. - M > - I . - N O 2 is a strong E W G (Electron withdrawing group), - C l is a weak E W G and O C H 3 is an E D G (Electron donating group).