(A) In the complex $[CoF_6]^{3-}$,the oxidation state of $Co$ is $+3$. $Co$ has an atomic number of $27$,so the electronic configuration of $Co^{3+}$

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(A) In the complex $[CoF_6]^{3-}$,the oxidation state of $Co$ is $+3$. $Co$ has an atomic number of $27$,so the electronic configuration of $Co^{3+}$ is $[Ar] 3d^6$. $F^-$ is a weak field ligand,so it does not cause pairing of electrons. In the $3d$ orbital,the $6$ electrons are arranged as $t_{2g}^4 e_g^2$. This results in $4$ unpaired electrons.

Class 12 Chemistry Coordination Compounds Isomerism and Magnetic properties

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In the coordination complex $[CoF_6]^{3-}$,the number of unpaired electrons is equal to ......

A
$4$
B
$0$
C
$2$
D
$3$

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Class 12 Questions

Class 12

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Chapter

Coordination Compounds

Subtopic

Isomerism and Magnetic properties

Of the following configurations,the optical isomers are

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Identify the complex ion with spin only magnetic moment of $4.90 \ BM$.

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Which of the following square planar complex molecular formulas exhibits $cis-trans$ isomerism? ($a$ and $b$ are monodentate ligands)

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Calculate the magnetic moment of the $Fe^{3+}$ ion in the $[Fe(CN)_6]^{3-}$ complex.

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In which case is a racemic mixture obtained upon mixing its mirror images ($d$ and $l$ forms) in a $1:1$ molar ratio?

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In the coordination complex $[CoF_6]^{3-}$,the number of unpaired electrons is equal to ......

Similar Questions

Of the following configurations,the optical isomers are

Identify the complex ion with spin only magnetic moment of $4.90 \ BM$.

Which of the following square planar complex molecular formulas exhibits $cis-trans$ isomerism? ($a$ and $b$ are monodentate ligands)

Calculate the magnetic moment of the $Fe^{3+}$ ion in the $[Fe(CN)_6]^{3-}$ complex.

In which case is a racemic mixture obtained upon mixing its mirror images ($d$ and $l$ forms) in a $1:1$ molar ratio?

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