Explain the role of coke and sand added during smelting process in the – InterviewSolution

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1.	Explain the role of coke and sand added during smelting process in the extraction of copper.
Answer» Solution :Coke is the sourece of heat in smelting and also it acts as reducing agent, which reduces `Cu_(2)O"to"CU`: `Cu_(2)O+Cto2Cu+CO` `SiO_(2)` combines with the IMPURITIES LIKE FeO and is removed as slag: `FeO+SiO_(2)toFeSiO_(3)`

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