Question

Carboxylic acids contain carbonyl groups but donot show nucleophilic addition reaction like aldehydes and ketones. why

Answer 1

because in carboxylic acid there r 2 oxygen atom attach wth double bond show resonance nd make these electrons rich

Answer 2

Hii..
Carboxylic acid doesnt show nucleophilic substitution reaction as because of presence of lone pair atoms on O atom of OH group decreases electrophilic character of carbonyl carbon by resonance..

Hence partial positive charge decreases and therefore it doesnt show nucleophilic substitution reactions..

hope this helps!!