Which of the following is a homoleptic complex?

Question

Accepted Answer

A. {'text': '[Co(NH₃)₆]³⁺', 'label': 'A'}

1. Homoleptic complexes have only one kind of ligand around the central metal.
2. [Co(NH₃)₆]³⁺ has six identical NH₃ ligands — homoleptic.
3. The other three have mixed ligands (NH₃ + Cl, CO + NO, en + Cl) and are heteroleptic.
4. So the homoleptic answer is [Co(NH₃)₆]³⁺.
_Source: NCERT Class 12 Chemistry, Unit 5 "Coordination Compounds", §5.2(h)_

Answer

{'text': '[CoCl₂(NH₃)₄]⁺', 'label': 'B'}

Answer

{'text': '[Fe(CO)₃(NO)]', 'label': 'C'}

Answer

{'text': '[Co(en)₂Cl₂]⁺', 'label': 'D'}