Benzene react with nitrating mixture (conc. H N O 3 and conc H 2 S O 4 . ) to produce nitrobenzene. In the nitrating mixture, H N O 3 acts as a

Step-by-step solution

NO 2 + generated as follows: H 2 SO 4   +   HNO 3 → HSO 4 −   +   H 2 NO 3 + O 2 N − OH 2 ⊕ → NO 2 + +H 2 O (nitronium   ion) Here, HNO 3 accept H ⊕ , hence, act as base.