JAMB - Chemistry (2024 - No. 76)
The IUPAC nomenclature of the complex K\(_4\)Fe(CN)\(_6\) is
potassium hexacyanoferrate(II)
potassium hexacyanoferrate(III)
potassium hexacyanoferrate(IV)
potassium hexacyanoferrate(VI)
Explication
The naming starts with the first metal which is potassium, followed by the hexacyano (6 moles of Cyanide) and then ferrate (II).