A) \[{{[Ni{{(CN)}_{4}}]}^{2-}}\]
B) \[{{[NiC{{l}_{4}}]}^{2-}}\]
C) \[{{[CoC{{l}_{4}}]}^{2-}}\]
D) \[{{[Co{{F}_{6}}]}^{2-}}\]
Correct Answer: A
Solution :
The decreasing order of strength of ligands is \[\underbrace{CO>C{{N}^{-}}>NO_{2}^{-}>N{{H}_{3}}>}_{\begin{smallmatrix} Strong\,field\,ligand \\ cause\,pairitng\,of\,electrons \end{smallmatrix}}\] \[\underbrace{{{H}_{2}}O>{{F}^{-}}>C{{l}^{-}}>B{{r}^{-}}>{{I}^{-}}}_{\begin{smallmatrix} Weak\,field\,ligand\,does \\ not\,cause\,parining \end{smallmatrix}}\] \[N{{i}^{2+}}\] in presence of \[C{{N}^{-}}\]You need to login to perform this action.
You will be redirected in
3 sec