Question:
The homoleptic complex in the following is
The homoleptic complex in the following is
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Homoleptic complexes contain only one kind of ligand, while heteroleptic complexes contain two or more different ligands.
Updated On: Jun 22, 2026
- \([Co(NH_3)_4Br_2]^+\)
- \([Co(C_2O_4)(NH_3)_4]^+\)
- \([Co(NH_3)_6]^{3+}\)
- \([Co(CN)_4Cl_2]^-\)
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The Correct Option is C
Solution and Explanation
Step 1: Understand homoleptic complex.
A homoleptic complex is a coordination compound in which the central metal atom is attached to only one type of ligand.
If more than one type of ligand is present, the complex is called heteroleptic.
Step 2: Analyze each option.
Option (1): \[ [Co(NH_3)_4Br_2]^+ \] This contains two types of ligands: \[ NH_3 \text{ and } Br^- \] Hence, it is heteroleptic.
Option (2): \[ [Co(C_2O_4)(NH_3)_4]^+ \] This contains oxalate and ammonia ligands.
Hence, it is heteroleptic.
Option (3): \[ [Co(NH_3)_6]^{3+} \] This contains only one type of ligand: \[ NH_3 \] Hence, it is a homoleptic complex.
Option (4): \[ [Co(CN)_4Cl_2]^- \] This contains cyanide and chloride ligands.
Hence, it is heteroleptic.
Step 3: Final conclusion.
Therefore, the homoleptic complex is \[ \boxed{[Co(NH_3)_6]^{3+}} \]
A homoleptic complex is a coordination compound in which the central metal atom is attached to only one type of ligand.
If more than one type of ligand is present, the complex is called heteroleptic.
Step 2: Analyze each option.
Option (1): \[ [Co(NH_3)_4Br_2]^+ \] This contains two types of ligands: \[ NH_3 \text{ and } Br^- \] Hence, it is heteroleptic.
Option (2): \[ [Co(C_2O_4)(NH_3)_4]^+ \] This contains oxalate and ammonia ligands.
Hence, it is heteroleptic.
Option (3): \[ [Co(NH_3)_6]^{3+} \] This contains only one type of ligand: \[ NH_3 \] Hence, it is a homoleptic complex.
Option (4): \[ [Co(CN)_4Cl_2]^- \] This contains cyanide and chloride ligands.
Hence, it is heteroleptic.
Step 3: Final conclusion.
Therefore, the homoleptic complex is \[ \boxed{[Co(NH_3)_6]^{3+}} \]
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