A) Square planar geometry and paramagnetic
B) Tetrahedral geometry and diamagnetic
C) Square planar geometry and diamagnetic
D) Tetrahedral geometry and paramagnetic
Correct Answer: B
Solution :
[b] \[\text{Ni(28): }\!\![\!\!\text{ Ar }\!\!]\!\!\text{ 3}{{\text{d}}^{\text{8}}}\text{4}{{\text{s}}^{\text{2}}}\] |
\[\because \text{CO}\] is a strong field ligand |
Configuration would be : |
For, four 'CO'-ligands hybridisation would be \[\text{s}{{\text{p}}^{\text{3}}}\] and thus the complex would be diamagnetic and of tetrahedral geometry. |
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