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JEE Main Chemistry question

ChemistryGeneral Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

When copper pyrites is roasted in excess of air, a mixture of is formed. is present as impurities. This can be removed as slag during reduction of . The flux added to form slag is

Answer: (A)

Solution

is a basic impurity, so an acidic flux (silica, ) is added: (slag). The correct option is (a).

Question ID VK-147219