Question

14. Hydrogen burns in air with a____ flame
(a) light bluish (b) yellow
(d) none of these​

Answer 1

Answer:

In a flame of pure hydrogen gas, burning in air, the hydrogen (H2) reacts with oxygen (O2) to form water (H2O) and releases energy. If carried out in atmospheric air instead of pure oxygen, as is usually the case, hydrogen combustion may yield small amounts of nitrogen oxides, along with the water vapor.