The geometry and magnetic behaviour of the complex $[Ni(CO)_4]$ are
- tetrahedral geometry and paramagnetic
- square planar geometry and diamagnetic
- square planar geometry and paramagnetic
- tetrahedral geometry and diamagnetic
The Correct Option is D
Solution and Explanation
$\because CO$ is a strong field ligand
Configuration would be :
For, four $'CO'$ -ligands hybridisation would be $sp ^{3}$ and thus the complex would be diamagnetic and of tetrahedral geometry.
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Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.