Question:
The charge on the central metal ion in the complex $[Ni(CO)_4]$ is
The charge on the central metal ion in the complex $[Ni(CO)_4]$ is
Updated On: Jun 4, 2024
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The Correct Option is C
Solution and Explanation
Let in $[Ni(C0)_4]$, oxidation state (charge) of Ni is x.
$\, \, \, \, \, \, \, \, \, \, \, \, \, Ni(CO)_4$
$\, \, \, \, \, \, \, \, \, \, \, x + (0 \times 4) = 0 [\because$ Oxidation state of CO= O]
$\therefore\, \, \, \, \, \, \, \, \, \, \, \, \, \, \, $x=0
In metal carbonyl, oxidation state of metal is always zero.
$\, \, \, \, \, \, \, \, \, \, \, \, \, Ni(CO)_4$
$\, \, \, \, \, \, \, \, \, \, \, x + (0 \times 4) = 0 [\because$ Oxidation state of CO= O]
$\therefore\, \, \, \, \, \, \, \, \, \, \, \, \, \, \, $x=0
In metal carbonyl, oxidation state of metal is always zero.
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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.