MHT CET202526 Apr 2025Evening ShiftChemistryCoordination CompoundsActual
Identify weak field ligand from following.
Options
- ANH ₃
- BNC ⁻
- CBr ⁻
- DCO
Correct answer
C. Br ⁻
Step-by-step solution
Ligand field strength is determined by the spectrochemical series: I ⁻ Among the options, NH ₃ is a strong field ligand, NC ⁻ is a very strong field ligand (similar to CN ⁻ ), Br ⁻ is a weak field ligand, and CO is the strongest ligand in the series. The weakest is Br ⁻ Answer: C