Describe the method used for the refining of metals?
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The methods are-poling,liquation,distillation,oxidation,electrolytic and zone refining.
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Describe a method for refining nickel. ... In this process, nickel is heated in the presence of carbon monoxide to form nickel tetracarbonyl, which is a volatile complex. Then, the obtained nickel tetracarbonyl is decomposed by subjecting it to a higher temperature (450 - 470 K) to obtain pure nickel metal.
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