Q133 / 200 · MHT CET - Medical 2026 (24 April Shift 1) · Chemistry
Identify homoleptic complex from following.
- ABis(ethylenediamine)dithiocyanatoplatinum(IV)
- Correct answerBTetraamminecopper(II) ion
- CTriamminetrinitrocobalt(III)
- DTriamminetrithiocyanatorhodium(III)
Solution
A homoleptic complex is a coordination compound in which the central metal atom or ion is bonded to only one type of ligand.
Bis(ethylenediamine)dithiocyanatoplatinum(IV) contains two types of ligands: ethylenediamine and thiocyanate. It is a heteroleptic complex.
Tetraamminecopper(II) ion contains only one type of ligand: ammine ($NH_3$). It is a homoleptic complex.
Triamminetrinitrocobalt(III) contains two types of ligands: ammine and nitro. It is a heteroleptic complex.
Triamminetrithiocyanatorhodium(III) contains two types of ligands: ammine and thiocyanate. It is a heteroleptic complex.
Answer: Tetraamminecopper(II) ion
Bis(ethylenediamine)dithiocyanatoplatinum(IV) contains two types of ligands: ethylenediamine and thiocyanate. It is a heteroleptic complex.
Tetraamminecopper(II) ion contains only one type of ligand: ammine ($NH_3$). It is a homoleptic complex.
Triamminetrinitrocobalt(III) contains two types of ligands: ammine and nitro. It is a heteroleptic complex.
Triamminetrithiocyanatorhodium(III) contains two types of ligands: ammine and thiocyanate. It is a heteroleptic complex.
Answer: Tetraamminecopper(II) ion
Hence, the correct answer is option: 'B'.