The electrolysis can be used for the production of hydrogen gas, for the electrometallurgy, electroplating and various metals can also be obtained by this process. The electrolysis of molten involves two species and therefore can be easily electrolyzed, but the electrolysis of the aqueous is bit difficult because it involves the electrolysis of sodium chloride as well as water. The metals can be easily purified by the process of electrolysis. This process is called electrolytic refining.
Electrolysis can be used for the equivalent mass determination, for the electrolysis of water for the production of hydrogen gas, metals like can be obtained by this process.
The purification of metal by the process of electrolysis is called electrolytic refining.
The refining of copper metal is shown as,
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