Q33 / 150 · MHT CET 2026 (15 April Shift 2) · Chemistry
Which of the following ligands splits d orbitals to maximum level?
- Correct answerA$\text{CN}^-$
- B$\text{H}_2\text{O}$
- C$\text{Cl}^-$
- D$\text{NH}_3$
Solution
The splitting of d orbitals depends on the strength of the ligand, which is given by the spectrochemical series.
The order of ligand strength for the given options is $\text{Cl}^- < \text{H}_2\text{O} < \text{NH}_3 < \text{CN}^-$.
Since $\text{CN}^-$ is the strongest field ligand among the given options, it causes the maximum crystal field splitting of the d orbitals.
Answer: $\text{CN}^-$
The order of ligand strength for the given options is $\text{Cl}^- < \text{H}_2\text{O} < \text{NH}_3 < \text{CN}^-$.
Since $\text{CN}^-$ is the strongest field ligand among the given options, it causes the maximum crystal field splitting of the d orbitals.
Answer: $\text{CN}^-$
Hence, the correct answer is option: 'A'.