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 $t_{2g}^{4}e{g}^2$
• 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 $18000c{m}^{-1}$ then ${\Delta }_t$ for $Co\left(III\right)$ complex with same ligand will be $8000c{m}^{-1}$

Answer 1

Answer: (A)

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