Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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What is the Role of Silica in the Extraction of Copper? - Chemistry

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What is the role of silica in the extraction of copper?

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Solution

Ores of copper contain iron oxide as impurity. Silica reacts with iron oxide and forms iron silicate, which is removed as slag.

       FeO+SiO2FeSiO3

Iron oxide    Silica     Iron silicate

                          (Slag)

Concept: Occurrence of Metals
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