Question:
The oxidation states of nitrogen in $\mathrm{NO}, \mathrm{NO}_{2}$, $\mathrm{N}_{2} \mathrm{O}$ and $\mathrm{NO}_{3}^{-}$are in the order of:
Correct Option: 1
Solution:
The oxidation states of Nitrogen in following molecules are as follows
$\mathrm{NO}_{3}^{-} \rightarrow+5$
$\mathrm{NO}_{2} \rightarrow+4$
$\mathrm{NO}^{2} \rightarrow+2$
$\mathrm{~N}_{2} \mathrm{O} \rightarrow+1$