The spin magnetic moment of cobalt in Hg[Co(S | vedclass

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

Question

(C) The spin-only magnetic moment is calculated using the formula $\mu_{eff} = \sqrt{n(n+2)} \ B.M.$In the complex $Hg[Co(SCN)_4]$,$Hg$ is in the $+2$

Vedclass · Accepted Answer

$\sqrt{15}$

Vedclass · Answer

(C) The spin-only magnetic moment is calculated using the formula $\mu_{eff} = \sqrt{n(n+2)} \ B.M.$In the complex $Hg[Co(SCN)_4]$,$Hg$ is in the $+2$ oxidation state,so the complex ion is $[Co(SCN)_4]^{2-}$.Let the oxidation state of $Co$ be $x$. Then $x + 4(-1) = -2$,which gives $x = +2$.The electronic configuration of $Co^{2+}$ is $[Ar] 3d^7$.In a tetrahedral field,$3d^7$ configuration results in $3$ unpaired electrons $(n=3)$.Substituting $n=3$ into the formula: $\mu_{eff} = \sqrt{3(3+2)} = \sqrt{15} \ B.M.$Thus,option $C$ is correct.

The spin magnetic moment of cobalt in $Hg[Co(SCN)_4]$ is

Similar Questions

$A$ metal complex of coordination number six having three different types of ligands $a$,$b$ and $c$ of composition $Ma_2b_2c_2$ can exist in several geometrical isomeric forms; the total number of such isomers is

The pair of metal ions that can give a spin-only magnetic moment of $3.9 \, BM$ for the complex $[M(H_2O)_6]Cl_2$ is

Which of the following compounds exhibits linkage isomerism?

Which one of the following has an optical isomer?
$(en = \text{ethylenediamine})$

The metal complex that is diamagnetic is (Atomic number: $Fe = 26, Cu = 29$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module