What are the methods for refining of metals?
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The process of purifying impure metal is called refining of metal.
The most important and most widely used method for refining impure metals is called electrolytic refining.
Many metals like copper,zinc,tin,lead,nickel,silver,gold are refined electrolytically.
For the refining of an impure metal by electrolysis:
1)A thick block of impure metal is made anode(It is connected to the positive terminal of the battery)
2)A thin strip of the pure metal is made cathode(It is connected to the negative terminal of the battery)
3)A water soluble salt(of the metal to be refined)is taken as electrolyte
The most important and most widely used method for refining impure metals is called electrolytic refining.
Many metals like copper,zinc,tin,lead,nickel,silver,gold are refined electrolytically.
For the refining of an impure metal by electrolysis:
1)A thick block of impure metal is made anode(It is connected to the positive terminal of the battery)
2)A thin strip of the pure metal is made cathode(It is connected to the negative terminal of the battery)
3)A water soluble salt(of the metal to be refined)is taken as electrolyte
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