Give a brief definition of Electrorefining.
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Electrirorefining is based on the chemical effects of current this method is used to purify or refined minerals such as gold silver Copper and Tin the extraction of minerals such as aluminium and sodium makes use of chemical effects of current.
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it is a cell device in which plate of impure metal is taken as anode and thin plate of pure metal is taken as cathode acidified salt solution of the same metal is used as an electrolyte on electrolysis oxidation takes place at anode by which metal ions comes out from anode into solution which moves towards cathode and they accept electron and precipitated at cathode copper zinc are verified by this method for example electrolytic purification of copper
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