Question

Give the oxidation state of underlined.
$\underset{–}{N}{H}_4\underset{–}{N}{O}_2$.

Answer 1

Each nitrogen have different oxidation state because $N{H}_{4}N{O}_2$ exists as $N{H}_4^{+}$ and $N{O}_2^{-}$.In $N{H}_4^{+}$, it has -3 oxidation state and in $N{O}_2^{-}$, it has +3 oxidation state.