how is oxegen used in oxides of nitrogen

Nitrogen (N) forms oxides in which nitrogen exhibits each of its positive oxidation numbers from +1 to +5.

Nitrogen oxide can refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds:

• Nitric oxide, also known as nitrogen monoxide, (NO), nitrogen(II) oxide
• Nitrogen dioxide (NO₂), nitrogen(IV) oxide
• Nitrous oxide (N₂O), nitrogen(I) oxide
• Nitrosylazide (N₄O), nitrogen(I) oxide + diatomic nitrogen
• Nitrate radical (NO₃), nitrogen(VI) oxide
• Dinitrogen trioxide (N₂O₃), nitrogen(III) oxide
• Dinitrogen tetroxide (N₂O₄), nitrogen(IV) oxide
• Dinitrogen pentoxide (N₂O₅), nitrogen(V) oxide
• Trinitramide (N(NO₂)₃)