Q. The complex that shows Facial - Meridional isomerism is:
A) [Co(en)₂Cl₂]⁺
B) [Co(en)₃]³⁺
C) [Co(NH₃)₃Cl₃]
D) [Co(NH₃)₄Cl₂]⁺
Explanation
[Solution by Dr. Abubacker] Facial–meridional isomerism arises in octahedral complexes of the type $MA_3B_3$. [Co(NH₃)₃Cl₃] is of this type: the three NH₃ (or three Cl⁻) can occupy one face (fac) or a meridian (mer). Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.