Facial (fac) and meridional (mer) isomerism is a specific type of geometrical isomerism exclusively — Coordination Compounds Chemistry Question
Question
Facial (fac) and meridional (mer) isomerism is a specific type of geometrical isomerism exclusively exhibited by octahedral complexes of the general formula:
Answer: B
💡 Solution & Explanation
Complexes of the type $Ma_3b_3$ (e.g., $[Co(NH_3)_3(NO_2)_3]$) can arrange the three identical ligands either on the same face of the octahedron (facial) or around the meridian of the octahedron (meridional).
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