Question

The weakest acid amongst the following is

• A. ${ClCH_2COOH}$
• B. ${HCOOH}$
• C. ${FCH_2CH_2COOH}$
• D. ${CH_2(I)COOH}$

Answer 1

Answer: (B)

${HCOOH}$

Answer 2

Proton doners are acids. Electron withdrawing groups (like halogens) increase the acidity of carboxylic acids. Therefore, HCOOH is weakest acid among the given choices.