Phenol, p-methylphenol, m-nitrophenol and p-nitrophenol follow the order of increasing acid strength as

JEE Main Chemistry question

Phenol, -methylphenol, -nitrophenol and -nitrophenol follow the order of increasing acid strength as

(A)Phenol, -methylphenol, -nitrophenol, -nitrophenol
(B)-methylphenol, phenol, -nitrophenol, -nitrophenolCorrect
(C)-methylphenol, -nitrophenol, phenol, -nitrophenol
(D)-nitrophenol, -nitrophenol, phenol, -methylphenol

Answer: (B)

Solution

The electron-donating methyl group makes -methylphenol the weakest acid of the set (below plain phenol); plain phenol is next; nitro groups increase acidity, with the meta-nitro isomer

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Question ID VK-148677