JEE Main Chemistry question

Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives **[AIEEE 2009]**

(A)2,4,6-Trinitrophenol (picric acid)Correct
(B)-Nitrophenol
(C)-Nitrophenol
(D)Nitrobenzene

Answer: (A)

Solution

Sulphonation of phenol with concentrated installs groups (preferentially at the para and then further positions), which both deactivate/block those ring positions and are later displaced under the vigorous nitrating conditions; treatment with

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Question ID VK-148497