Chemistry - Carbonyl compounds Question with Solution | TestHub

$\left[\mathrm{M}\mathrm{n}\right(\mathrm{N}{\mathrm{H}}_3{)}_6]\mathrm{C}{\mathrm{l}}_2$
It is a outer orbital complex

Here n = 5 (unpaired electrons).
Magnetic moment$=\sqrt{\mathrm{n}(\mathrm{n}+2)}$
$\mathrm{M}.\mathrm{M}.=\sqrt{35}$B.M.
Here$\left[\mathrm{C}\mathrm{r}\right(\mathrm{N}{\mathrm{H}}_3{)}_6]\mathrm{C}{\mathrm{l}}_3,[\mathrm{C}\mathrm{o}(\mathrm{C}\mathrm{N}{)}_6{]}^{4-}$both have 3 unpaired electron on metal ion.
$\left[\mathbf{N}\mathbf{i}\right(\mathbf{C}\mathbf{O}{)}_4]$has no unpaired electron on Ni-atom (inner electrons get paired).