In the extraction of copper, the slag formed in the blast furnace is:

C a S i O_{3}

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F e S i O_{3}

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C a_{3} (P O_{4})_{2}

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M n S i O_{3}

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Solution

The correct option is B $F e S i O_{3}$
Copper ores contain iron as the main impurity. Iron react with silica and is removed as slag. Therefore, the slag formed in the blast furnace is $F e S i O_{3}$ .

The reaction that takes place in the blast furnace is as follows:

$F e O + S i O_{2} \to F e S i O_{3} (s l a g)$

Option B is correct.

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{F e S i O}_{3}

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