Nitrobenzene can be prepared from benzene by using a mixture of conc. `HNO_3` and conc. In the nitrating mixture, `HNO_3` acts as a/an

Answer

A

Explanation

`H_2SO_4` is a stronger acid than `HNO_3`
`HNO_3+H_2SO_4rarrH_2^(+)NO_3+HSO_4^(-)`
`H_2^(+)NO_3rarrH_2O+NO_2^(+)`