Question

Nitrobenzene on reaction with conc. $HN{O}_3/H_{2}S{O}_4$ at 80 100C forms which one of the following products?

• A. 1,2-Dinitrobenzene
• B. 1,3-Dinitrobenzene
• C. 1,4-Dinitrobenzene
• D. 1,2,4-Trinitrobenzene

Answer 1

Answer: (B)

1,3-Dinitrobenzene

When HNO${}_3$ and H${}_2$SO${}_4$ react together it gives nitronium ion ( O= N${}^{+}$=O )

• This nitronium ion reacts on meta position of nitrobenzene, give 1,3-dinitrobenzene.