Question

Select incorrect statement :-

• A. Octahedral $Co\left(III\right)$ complexes with strong field ligands have very high magnetic moments.
• B. When $\Delta _{0} < P$ , then $d$ - electron configuration is $t_{2 g}^{4}eg^{2}$
• C. Complex $\left(\left[Co \left(Ox\right)_{3}\right]\right)^{- 3}$ has zero magnetic moment.
• D. If the $\Delta _{o}$ for a $Co\left(III\right)$ complex is $18000cm^{- 1}$ then $\Delta _{t}$ for $Co\left(III\right)$ complex with same ligand will be $8000cm^{- 1}$

Answer 1

Answer: (A)

Octahedral $Co\left(III\right)$ complexes with strong field ligands have zero magnetic moment.