The theoretical value of the magnetic moment | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The complex formed by $Fe^{3+}$ and $CN^{-}$ is $[Fe(CN)_6]^{3-}$.In this complex,the oxidation state of $Fe$ is $+3$,which has an electronic conf

Vedclass · Accepted Answer

$1.73$

Vedclass · Answer

(B) The complex formed by $Fe^{3+}$ and $CN^{-}$ is $[Fe(CN)_6]^{3-}$.In this complex,the oxidation state of $Fe$ is $+3$,which has an electronic configuration of $[Ar] 3d^5$.$CN^{-}$ is a strong field ligand,which causes pairing of electrons in the $3d$ orbitals.For $d^5$ configuration with strong field ligand,the electrons are arranged as $t_{2g}^5 e_g^0$,resulting in $1$ unpaired electron $(n = 1)$.The magnetic moment is calculated using the formula $\mu = \sqrt{n(n+2)} \ B.M.$Substituting $n = 1$,we get $\mu = \sqrt{1(1+2)} = \sqrt{3} \approx 1.73 \ B.M.$

The theoretical value of the magnetic moment of the complex formed by the reaction of $Fe^{3+}$ ion with $CN^{-}$ ligand is .......... $B.M.$

Similar Questions

Which of the following ions are optically active?

Which of the following ion/ions is/are diamagnetic?

Which one of the following octahedral complexes will not show geometric isomerism ($A$ and $B$ are monodentate ligands)?

Geometric isomerism is exhibited by which of the following coordination compounds?

Which of the following complexes will exhibit optical isomerism?

Vedclass Test Series

Exam Paper Generator

Online Exam Module