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Differentiate between roasting and calcination? Explain the two with the help of suitable chemical equations. How is zinc extracted from its ore? |
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Answer» Roasting is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities. eg: carbon, sulphur etc removed as their gaseous oxides. Calcination is the process of heating the ore below its melting point an absence of air to remove volatile impurities like arsenic etc |
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