1.

The chemical composition of slag formed during the smelting process in the extraction of copper isA. `Cu_(2)O + FeS`B. `FeSiO_(3)`C. `CuFeS_(2)`D. `Cu_(2)S + FeO`

Answer» Correct Answer - B
When smelting is done in the blast furnace, most of the ferrous oxide is converted to ferric oxide. With silica, it forms ferrous silicate, which is the slag.
`FeO + SiO_(2) rarr FeSiO_(3)`.


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