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Extraction of copper by smelting uses silica as an additive to

Question

Extraction of copper by smelting uses silica as an additive to remove:

C u_{2} O

F e S

F e O

C u_{2} S

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Text solutionVerified

F e O

is gangue and

S i O_{2}

is flux to form slag

F e S i O_{3}

basic impurity F e O + acidic flux S i O_{2} ⟶ slag F e S i O_{3}

Hence, the correct option is

C

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Question Text	Extraction of copper by smelting uses silica as an additive to remove:
Answer Type	Text solution:1
Upvotes	150