How many isomers exist for the octahedral complex ion [Co(NH₃)₄F₂]⁺? A)1 B)2 C)3 D)4 E)5

Question

Quizplus · Accepted Answer

The complex ion has two types of ligands: NH3 and four different bidentate ligands. Each bidentate ligand can form an octahedral shape by chelating to the central cobalt ion, and there are four different bidentate ligands available. Therefore, the total number of isomers is 2^4, which is 16. However, two of these isomers are identical due to rotational symmetry, so the actual number of isomers is 8. Since the question only asks for the number of isomers and not their specific structures, the correct answer is B (2).

How Many Isomers Exist for the Octahedral Complex Ion [Co(NH3)4F2]+

How Many Isomers Exist for the Octahedral Complex Ion [Co(NH₃)₄F₂]⁺