Question

When hydrogen raect with oxygen
It form water

Answer 1

When molecular hydrogen (H2) andoxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen andoxygen can combine to form eitherwater or hydrogen peroxide.
H2+o2=H2o2

Answer 2

Ans: Yes, when hydrogen reacts with oxygen it forms water only with the process of electrolysis.

H2 + O2 ----> H2O

Hope it helps...!!