1.

Explain hydrometallurgical process with suitable example.

Answer»

Solution :The extraction of metals by USING their AQUEOUS solution is called HYDROMETALLURGY.
Example : Au, Ag, Cu etc. are extracted by this method.
The copper from LOW grade ores and scraps is extracted by hydrometallurgy. It is leached out using acid or bacteria. The solution containing `Cu^(2+)` is treated with scrap iron or `H_2`.
`Cu_((aq))^(2+)+ H_(2(g)) to Cu_((s)) + 2H_((aq))^(+)`.


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