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प्रश्न
Why is sulphide ore of copper heated in a furnace after mixing with silica?
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उत्तर
Iron oxide present as impurity in sulphide ore of copper forms slag which is iron silicate and copper is produced in the form of copper matte.
\[\ce{FeO + SiO2 -> FeSiO3}\]
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संबंधित प्रश्न
Is it true that under certain conditions, Mg can reduce SiO2 and Si can reduce MgO? What are those conditions?
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Silica is added to the sulphide ore of copper in the reverberatory furnace.
Explain the following:
Carbon and hydrogen are not used as reducing agents at high temperatures.
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\[\ce{Au + CN^- + H2O + O2 -> [Au(CN)2]^- + OH^-}\]
The number of CN− ions involved in the balanced equation is ______.
