Test For Nitrogen (ii) Oxide by keypoint When exposed to air, it burns to form reddish-brown NO2 2NO(g) + O2(g) → 2NO2(g) Others are Viewing: Nitrogen (II) Oxide (NO) Nitrogen (IV) Oxide NO2 Sulphur (iv) oxide (SO2) Nitrogen Chemical Properties Of Nitrogen Uses Of Nitrogen Oxides Of Nitrogen