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Question
Explain givem equation, what happens when a mixture of Cu2O and Cu2S is heated?
Solution
When a mixture of Cu2O and Cu2S is heated, they react together to give copper metal and sulphur dioxide gas. This is one of the methods used to reduce sulphide ore of less reactive copper to copper metal. Copper glance, Cu2S, is roasted in the presence of air to get converted to Cu2O. Cu2O then reacts with non-oxidised Cu2S ore in the absence of air to form copper metal.
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