Question

The expected spin-only magnetic moments of complexes of a transition metal like nickel or cobalt depend on:

• A. oxidation state of the metal.
• B. nature of the ligand.
• C. geometry of the complex.
• D. Nnumber of unpaired electrons in free transition metal ion.

Answer 1

Answer: (A), (B), (C)

The correct options are
A nature of the ligand.
B geometry of the complex.
C oxidation state of the metal.

The number of unpaired electrons in the complex depends on the oxidation state as it determines the number of electrons and nature of ligand and geometry as it determines the order of pairing.

Thus correct answer is option $A,B,C$.