Question

The reaction of conc. $HN{O}_3$ with conc. $H_{2}S{O}_4$ gives:

• A. $S{O}_4^{2-}$
• B. $S{O}_4^{2-}$
• C. $N{O}_3^{-}$
• D. $N{O}_2^{+}$

Answer 1

The correct option is D $N{O}_2^{+}$

$HN{O}_3+H_{2}S{O}_4\to N{O}_2^{+}+HS{O}_4^{-}+H_{2}O$
The reaction mixture is used for nitration by generating electrophile nitronium ion $\left(N{O}_2^{+}\right)$