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The oxidation states of `Cu` and `Fe` in chalcopyrite are, respectively,A. `+2,+2`B. `+1,+2`C. `+1,+3`D. `+2,+1`

Answer» Correct Answer - D
Chalcopyrite is `2CuFeS_(2)`, i.e., `Cu_(2)S + Fe_(2)S_(3)`.
Hene, oxidation states of `Cu` and `Fe` are `+2 `and `+1`, respectively.


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