Answer
Dihyration acts as a reducing agent as it removes oxygen from the oxides of metal upon heating
CuO+H2→Cu+H2O ( Reducing agent )
Dihydragen can be act as oxidising agent while reacting with highly electropsitive metals belonging to group I and 2. For example , in the ionic hydrides, Na has transferred an electron to the hydrogen atom. Therefore, it is a reducing agent while dihydrogen is an oxidising agent
2Na+H2→2NaH or (2Na+H−) oxidising agent
Work Step by Step
same as above
