Question

Which of the following compound of nitrogen shows disproportionation reaction in acid solution?

• A. $N_2$
• B. $HN{O}_2$
• C. $HN{O}_3$
• D. $N{H}_3$

Answer 1

The correct option is B $HN{O}_2$

All oxidation states of nitrogen from +1 to +4 tend to disproportionate ​in an acid solution. ​
In $HN{O}_2$ the oxidation state of $N$ is +3. Therefore, it will disproportionate ​in an acid solution.
$3HN{O}_2\to HN{O}_3+H_{2}O+NO$