Among the following acids which has the lowest $\mathrm{pK}_{\mathrm{a}}$ value
- $\mathrm{CH}_3 \mathrm{COOH}$
- $\mathrm{HCOOH}$
- $\left(\mathrm{CH}_3\right)_2 \mathrm{COOH}$
- $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}$
Solution
Asked in: JEE Main 2005
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