Question

nitrating mixture is obtained by mixing concentrated $HN{O}_3$ and concentrated $H_{2}S{O}_4$. The role of the latter - $H_{2}S{O}_4$ is:

• A. To force $HN{O}_3$ to act as a base.
• B. To suppress dissociation of $HN{O}_3$.
• C. To produce $N{O}_2^{+}$ ions.
• D. $H_{2}S{O}_4$ is a medium only; it is a spectator and doesn't partake in the reaction!

Answer 1

Answer: (A), (C)

The correct options are
A

To force $HN{O}_3$ to act as a base.

C

To produce $N{O}_2^{+}$ ions.

$H_{2}S{O}_4+HN{O}_3\rightleftharpoons H_2{O}^{+}N{O}_2+HS{O}_4^{-}$

$H_2{O}^{+}N{O}_2+HS{O}_4^{-}\rightleftharpoons H_{2}O+N{O}_2^{+}$