alleryThe IUPAC name of [Ni(NH₃)₆]Cl₂ is
ANickel(II) hexachloride
BNickel hexammine chloride
CHexaamminenickel(II) chloride
DNickel chloride amine complex
Answer & Solution
Correct answer: C. Hexaamminenickel(II) chloride
1. Ligands are named alphabetically before the metal: ammine first, then hexa-prefix.
2. NH₃ ligand is named "ammine"; six of them → hexaammine.
3. Cation is named first with metal, oxidation state in Roman numerals.
4. So the name is hexaamminenickel(II) chloride.
_Source: syllabus Chemistry, Unit 5 "Coordination Compounds", §5.3.2_
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