Question

43. (a) How do metals react with hydrogen ? Explain​

Answer 1

Answer:

Atomic hydrogen is very reactive. It combines with most elements to form hydrides (e.g., sodium hydride, NaH), and it reduces metallic oxides, a reaction that produces the metal in its elemental state. ... Almost all metals and nonmetals react with hydrogen at high temperatures.

Answer 2

Answer:

Almost all metals react with hydrogen at high temperature.

At elevated temperature and pressure hydrogen reduces the oxides of most metals .

Explanation:

for example hydrogen gas and  ferrous oxide react to form metallic iron and water.

H2+Feo→Fe+H2O