JEE Main Chemistry question

The correct order of decreasing acidity of nitrophenols will be **[WB-JEE 2011]**

(A)-nitrophenol > -nitrophenol > -nitrophenol
(B)-nitrophenol > -nitrophenol > -nitrophenol
(C)-nitrophenol > -nitrophenol > -nitrophenol
(D)-nitrophenol > -nitrophenol > -nitrophenolCorrect

Answer: (D)

Solution

Both - and -nitrophenol allow direct resonance (+I/−R) stabilisation of the phenoxide by the group, making them much more acidic than -nitrophenol, which can only stabilise the anion inductively (meta position blocks

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Question ID VK-148506