How is hydrogen used in metallurgy? Prove it with an example.

1.	How is hydrogen used in metallurgy? Prove it with an example.
Answer» Solution :In metallurgy, for the extraction of PURE metals from their mineral SOURCES, hydrogen is ne reduce many METAL oxides to metals at HIGH TEMPERATURES. `CuO_((s))+H_(2(g))toCu_((s))+H_(2)O_((g))`

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