Chemical composition of slag formed during the smelting process in the extraction of copper is:

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${FeSiO}_{3}$

${Cu}_{2} S + FeS$

${CaSiO}_{3}$

${Cu}_{2} S + FeO$

answer is B.

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Detailed Solution

The chemical composition of slag formed during the smelting process in the extraction of copper is Ferrosilite $({FeSiO}_{3})$ .

when silica is combined with concentrated sulphide ore that contains iron as an impurity and is fired in a reverberatory furnace.

The majority of the iron sulphide is changed into its oxide during this process, and the oxide then combines with silica to create an iron silicate fusible slag.

Hence, option B is correct.

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