In which of the following compounds, an element exhibits two different oxidation states?

Question

$\mathrm{NH}_4 \mathrm{NO}_3$

$\mathrm{N}_2 \mathrm{H}_4$

$\mathrm{N}_3 \mathrm{H}$

$\mathrm{NH}_2 \mathrm{CONH}_2$

Please login to view the detailed solution steps...