Question

Arrange in increasing order of acidic strength CH3Co2H, HCo2H, (CH3) 2CHCo2H

Answer 1

Answer:

Electron donating group decreases the strength of the acid 

Electron withdrawing group increases the strength of the acid 

Since −CH3 is an electron-donating group, it decreases the acidity

∴(CH3)2CHCOOH<CH3CH2COOH<CH3COOH

−Cl is an electron withdrawing group, it increases the acidity 

∴ClCH2CH2COOH<ClCH2COOH

The increasing order of acid strength is 

∴(CH3)2CHCOOH<CH3CH2COOH<ClCH2CH2COOH<CH3COOH<ClCH2COOH