Chemistry-

General

Easy

Question

# Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO_{4} ,5H_{2}O), atacamite cuprite (Cu_{2}O), copper glance (Cu_{2}S) and malachite However, 80% of the world copper production comes from the ore of chalcopyrite (CuFeS_{2}). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction. Iron is removed from chalcopyrite as

- FeO
- FeS
- Fe
_{2}O_{3}
- FeSiO
_{3}

_{2}O_{3}_{3}## The correct answer is: FeSiO_{3}

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