Question

$HN{O}_2$ acts both as reductant and oxidant, while $HN{O}_3$ acts only as oxidant. It is due to their

• A. Solubility ability
• B. Maximum oxidation number
• C. Minimum oxidation number
• D. Minimum number of valence electrons

Answer 1

The correct option is B

Maximum oxidation number

In $\stackrel{\bullet }{HN{O}_2}$ oxidation number of N = +3
In $\stackrel{\bullet }{HN{O}_3}$ oxidation number of N = +5