Which of the following complex ions would feature Iron in a +3 oxidation state? - d and f BLOCK ELEMENTS Quiz | GKFix.in

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Question

Which of the following complex ions would feature Iron in a +3 oxidation state?

A. [Fe(CN)₆]⁴⁻
B. [Fe(H₂O)₆]²⁺
C. [Fe(NH₃)₆]²⁺
D. [Fe(CN)₆]³⁻