MHT CET 2026 Chemistry question

Which of the following is correct decreasing order of acidic strength for the compounds listed below? I: p-chlorophenol, II: p-Cresol, III: p-nitrophenol, IV: p-methoxyphenol.

(A)II > IV > I > III
(B)I > II > III > IV
(C)III > I > II > IVCorrect
(D)IV > III > I > II

Answer: (C)

Solution

Acidity of a phenol depends on the stability of the phenoxide ion: electron-withdrawing groups stabilise it (stronger acid), electron-donating groups destabilise it (weaker acid). p-Nitrophenol (III): withdraws by and effects, the strongest acid (). p-Chlorophenol (I): is

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Question ID VK-097593