Question

Nitrobenzene can be prepared by heating with a mixture of concentrated $HN{O}_3$ and concentrated $H_{2}S{O}_4$. In this nitrating mixture, $HN{O}_3$, acts as

• A. A base
• B. An acid
• C. A catalys
• D. A reducing agent

Answer 1

The correct option is A A base

In preparation of nitrobenzene $H_{2}S{O}_4$, protanates nitric acid. So, $H_{2}S{O}_4$, acts as an acid while $HN{O}_3$ which accepts proton, acts as a base.