Question: The strongest acid amongst the following compounds is ?
$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}(\mathrm{Cl}) \mathrm{CO}_{2} \mathrm{H}$
$\mathrm{ClCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{COOH}$
$\mathrm{CH}_{3} \mathrm{COOH}$
$\mathrm{HCOOH}$
Correct Option: 1
Solution:
