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The name of complex ion, [Fe(CN)6]3− is:

1. Ferricyanide
2. Ferrocyanide
3. Hexacyanoferrate (III)
4. Hexacyanoferrate (II)

Correct answer: Hexacyanoferrate (III)

Solution

The oxidation state of Fe in [Fe(CN)6]3− is +3, and the correct IUPAC name for the complex is Hexacyanoferrate (III).

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