Nitration of benzene gives nitrobenzene when HNO3 and H2SO4 take part in the reaction. Here HNO3 works as(a) as a base(b) as an acid(c) a reducing agent(d) as a catalyst

Nitration of benzene gives nitrobenzene when HNO3 and H2SO4 take par

1.	Nitration of benzene gives nitrobenzene when HNO3 and H2SO4 take part in the reaction. Here HNO3 works as(a) as a base(b) as an acid(c) a reducing agent(d) as a catalyst
Answer» (a) as a base