Question:
[Cr(HO)]Cl (atomic number of Cr = 24) has a magnetic moment of 3.83 BM. The correct distribution of 3d-elections in the chromium present in the complex is
[Cr(HO)]Cl (atomic number of Cr = 24) has a magnetic moment of 3.83 BM. The correct distribution of 3d-elections in the chromium present in the complex is
Updated On: Jun 7, 2022
- $3d^{1}\,_{xy},3d^{1}\,_{yz},3d^{1}\,_{zx}$
- $3d^{1}\,_{xy},3d^{1}\,_{yz},3d^{1}\,_{z^{2}}$
- $3d^{1}\,_{_{\left(x^{2}\,y^{2}\right)}},3d^{1}\,_{_{z^{2}}},3d^{1}\,_{zx}$
- $3d^{1}\,_{xy},3d^{1}\,_{_{\left(x^{2}\,y^{2}\right)}},3d^{1}\,_{xz}$
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The Correct Option is A
Solution and Explanation
Magnetic moment indicates that there are three unpaired electrons present in chromium. These must be present in lower energy orbitals which are $3d^{1}_{ xy},\,3d^{1}_{ yz}$ and $3d^{1}_{ xz}.$
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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.