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प्रश्न
Name the method used for refining of copper metal.
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उत्तर
Copper is refined by an electrolytic method. Pure copper is obtained at the cathode.
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संबंधित प्रश्न
Write the names and chemical formulae of any one ore of zinc.
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Describe the roles of the following: SiO2 in the extraction of copper from copper matte
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