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Describe the role of the following: Si...

Describe the role of the following:
`SiO_(2)` in the extraction of copper from copper matte.

Text Solution

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Copper is extracted from copper matte which contains iron as impurity. Silica is added to remove this impurity as iron silica in the form of fusible slag.
`underset("Impurity")(FeO) + SiO_(2) to underset("(slag)")(underset("Iron silicate")(FeSiO_(3)))`
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