Carboxylic Acids — Easy JEE chemistry MCQ
Which is the strongest acid among the following?
- A. $CCl_3COOH$
- B. $CH_3COOH$
- C. $CHCl_2COOH$
- D. $CH_2ClCOOH$
Solution
Electron-withdrawing groups (-I effect) increase acidity. More Cl atoms = stronger -I effect.
$CCl_3COOH$ (trichloroacetic acid) is strongest due to three Cl atoms.
