Ncert Exercises & Solutions

Arrange the following in decreasing order of their acidic strength and give reason for your answer.

$C H_{3} C H_{3} O H, C H_{3} C O O H_{2} C l C H_{2} C O O H, F C H_{2} C O O H, C_{6} H_{5} C H_{2} C O O H$

(i) More the electron withdrawing nature of substituent, more is the acidic strength,

(ii) Direct attachment of C,H, group increases acidity due to resonance and
sp” hybridisation,

(iii) Alcohols are weakly acidic than carboxylic acids.