Question:
The complex showing a spin only magnetic moment of $2.82\, BM$ is
The complex showing a spin only magnetic moment of $2.82\, BM$ is
Updated On: Jun 14, 2022
- $Ni(CO)_4 $
- $[NiCl_4]^{2-} $
- $Ni(PPh_3)_4 $
- $[Ni(CN)_4]^{2-}$
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The Correct Option is B
Solution and Explanation
Magnetic moment $=2.83 \,BM $
indicates that there is two unpaired electrons.
$ \mu = \sqrt {n(n+2)} BM= \sqrt 8\, BM=2.82\, BM $
In $[NiCI_4]^{2-},Ni \,$ has $ d^8 $ configuration
and $Cl^- $ is a weak ligand:
indicates that there is two unpaired electrons.
$ \mu = \sqrt {n(n+2)} BM= \sqrt 8\, BM=2.82\, BM $
In $[NiCI_4]^{2-},Ni \,$ has $ d^8 $ configuration
and $Cl^- $ is a weak ligand:
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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.