A) \[C{{u}_{2}}S\]
B) \[C{{u}_{2}}O\]
C) \[CuFe{{S}_{2}}\]
D) \[CuC{{O}_{3}}.Cu{{(OH)}_{2}}\]
Correct Answer: C
Solution :
Copper pyrite\[(CuFe{{S}_{2}})\]is the chief ore of copper.
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