Metallurgical Engineering > GATE 2026 > Ore Composition
A copper ore contains 30 wt.% chalcopyrite (CuFeS2) and remaining gangue material. Assuming no copper in gangue material, the amount of copper in the ore (rounded off to one decimal place) is ______________ wt.%.
Given: Atomic weights of Fe, Cu and S are 56, 63.5, and 32 g/mol, respectively.
Given: Atomic weights of Fe, Cu and S are 56, 63.5, and 32 g/mol, respectively.
Correct : 10.4
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