Question

Which of the following is correct about the product obtained when equimolar amount of $NO$ and $N{O}_2$ are condensed together?

• A. It is referred to as the anhydride of nitrous acid
• B. It is an acidic oxide and can be dissolved in alkalies to give nitrites
• C. It has both symmetrical and asymmetrical forms
• D. All of these

Answer 1

The correct option is D All of these

$NO+N{O}_2⟶N_2{O}_3$

(a) $N_2{O}_3$ is the anhydride of nitrous acid.

(b) $N_2{O}_3$ on reaction with alkali forms nitrites.
$N_2{O}_3+2KOH\to 2KN{O}_2+H_{2}O$
$N_2{O}_3+2NaOH\to 2NaN{O}_2+H_{2}O$

(c) $N_2{O}_3$ exists in two different forms: