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MHT CET202520 Apr 2025Evening ShiftChemistryCoordination CompoundsActual

Which from following compounds contains complex cations and anions?

Options

  1. ATetraamminecopper(II)ion
  2. BTriamminetrinitrocobalt(III)
  3. CTetraamminedibromoplatinum(IV)bromide
  4. DSodium hexafluoroluminate(III)

Correct answer

C. Tetraamminedibromoplatinum(IV)bromide

Step-by-step solution

1. Tetraamminecopper(II) ion - Only a complex cation ( [ Cu ( NH ₃ )₄ ]²⁺ ). No complex anion. 2. Triamminetrinitrocobalt(III) - Contains a single complex entity ( [ Co ( NH ₃ )₃ ( NO ₂ )₃ ] ). No separate complex cation and anion. 3. Tetraamminedibromoplatinum(IV) bromide - This forms: - Complex cation: ( [ Pt ( NH ₃ )₄ Br ₂ ]²⁺ ) - Complex anion: ( Br ⁻ )is simple, but the name clearly indicates a complex cation and the ligand set suggests possible complex anions depending on formulation. ✓ This is the only compo

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