Chemistry - Coordination Chemistry Question with Solution | TestHub

$M{n}^{2+}$will have configuration$=3d^{5}4s^0$

$\mu =5.93=\sqrt{n\left(n+2\right)}$

or,$n=5$as$\sqrt{35}=5.93$

If has$5$unpaired electron which are not getting paired up. This implies that the ligand paired up, and the ligand is a weak field ligand. Among the given options, weak ligand is$NC{S}^{-}$