The oxidation states of nitrogen in \( \text{NO} \), \( \text{NO}_2 \), \( \text{N}_2\text{O} \) and \( \text{NO}_3^− \) are in the order of:
\( \displaystyle \text{NO}_3^- > \text{NO}_2 > \text{NO} > \text{N}_2\text{O} \)
\( \displaystyle \text{NO}_2 > \text{NO}_3^- > \text{NO} > \text{N}_2\text{O}\)
\( \displaystyle \text{NO} > \text{NO}_2 > \text{N}_2\text{O} > \text{NO}_3^- \)
\( \displaystyle \text{N}_2\text{O} > \text{NO}_2 > \text{NO} > \text{NO}_3^- \)
