question_answer

Nitrobenzene on reaction with cone.  at  forms which one of the following products?                                                                                                                         [NEET 2013]

A) 1, 2-dinitrobenzene

B) 1, 3-dinitrobenzene

C) 1, 4-dinitrobenzene

D) 1, 2, 4-trinitrobenzene

Correct Answer: B

Solution :

[b]  group being electron withdrawing reduces electron density at output positions.

Hence, now the mete-position becomes electron rich on which the electrophone (nitronium ion) attacks during nitration.