MCQ
Low oxidation state of metals in their complexes are common when ligands.
- Ahave good $\pi$-accepting character
- Bhave good $\sigma$-donor character
- Care havind good $\pi$-donating ability
- Dare havind poor $\sigma$-donating ability
✓
Answer
When metal is in low oxidation state then it forms complexes when ligands have good $\pi$-accepting character.
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