Q. According to crystal field theory, the correct order of ligands with respect to their decreasing order of field strength is
A) Cl⁻ > NH₃ > H₂O > CO
B) CO > NH₃ > H₂O > Cl⁻
C) CO > H₂O > NH₃ > Cl⁻
D) Cl⁻ > H₂O > NH₃ > CO
Explanation
[Solution from source] The spectrochemical series runs I⁻ < Br⁻ < … < Cl⁻ < … < H₂O < … < NH₃ < en < CN⁻ < CO, so in decreasing strength CO > NH₃ > H₂O > Cl⁻. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.