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प्रश्न
Define the oxidation process of refining of metal.
व्याख्या
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उत्तर
Oxidation refining is a process in which the impurities present in an impure metal are oxidised by passing air or oxygen through the molten metal. The oxides formed are either removed as slag or escape as gases.
Example: Copper is refined by oxidation of impurities such as iron and sulphur.
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