JEE Main Chemistry question

Which of the following represents the correct order of the acidity of the given compounds?

(A)CH₃COOH > BrCH₂COOH > ClCH₂COOH > FCH₂COOH
(B)FCH₂COOH > CH₃COOH > BrCH₂COOH > ClCH₂COOH
(C)BrCH₂COOH > ClCH₂COOH > FCH₂COOH > CH₃COOH
(D)FCH₂COOH > ClCH₂COOH > BrCH₂COOH > CH₃COOHCorrect

Answer: (D)

Solution

All three monohaloacetic acids are stronger than acetic acid itself (the halogen's –I effect strengthens the acid relative to unsubstituted acetic acid). Among the halogens,

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Question ID VK-149247