Question:
$CO$ is a stronger ligand than $Cl^-$ because
$CO$ is a stronger ligand than $Cl^-$ because
Updated On: Apr 2, 2024
- $CO$ is a neutral molecule
- $CO$ has $\pi$-bonds.
- $CO$ is poisonous.
- $CO$ is more reactive.
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The Correct Option is B
Solution and Explanation
CO is a strong ligand due to the presence of $\pi$ -bonds, available for donating $\pi$ -electrons to the metal-ion/atom. While, $Cl ^{-}$ has pair of electrons but are less available for donation (due to more delocalised nature of $\pi$ -electrons).
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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.