MHT CET 2022 Chemistry question

Which among the following carboxylic acids is strongest acid?

(A)F-CH-COOH
(B)Br-CH-COOH
(C)Cl-C-COOHCorrect
(D)Cl-CH-COOH

Answer: (C)

Solution

Acid strength increases with the electron-withdrawing (-I) effect of substituents on the -carbon, which stabilises the carboxylate anion. The effect is additive, so three Cl atoms in () outweigh the single

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Question ID VK-093665