JEE Main Chemistry question

[AIEEE 2008] Phenol, when it first reacts with concentrated sulfuric acid and then with concentrated nitric acid, gives

(A)Nitrobenzene
(B)2,4,6-Trinitrophenol
(C)*o*-NitrophenolCorrect
(D)*p*-Nitrophenol

Answer: (C)

Solution

Sulfonation of phenol with conc. H₂SO₄ occurs predominantly at the *para* position (less sterically hindered), temporarily blocking it. Subsequent nitration is then directed to the *ortho*

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Question ID VK-140048