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(B) The magnetic moment (spin-only) is given by $\mu = \sqrt{n(n+2)} \ BM$,where $n$ is the number of unpaired electrons. Two complexes have the same

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$[Cr(H_2O)_6]^{2+}, [Fe(H_2O)_6]^{2+}$

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(B) The magnetic moment (spin-only) is given by $\mu = \sqrt{n(n+2)} \ BM$,where $n$ is the number of unpaired electrons. Two complexes have the same magnetic moment if they have the same number of unpaired electrons $(n)$.$1$. $[Cr(H_2O)_6]^{2+}$: $Cr^{2+}$ is $3d^4$. $H_2O$ is a weak field ligand,so $n = 4$.$2$. $[CoCl_4]^{2-}$: $Co^{2+}$ is $3d^7$. $Cl^-$ is a weak field ligand,so $n = 3$.$3$. $[Fe(H_2O)_6]^{2+}$: $Fe^{2+}$ is $3d^6$. $H_2O$ is a weak field ligand,so $n = 4$.$4$. $[Mn(H_2O)_6]^{2+}$: $Mn^{2+}$ is $3d^5$. $H_2O$ is a weak field ligand,so $n = 5$.Comparing the values of $n$:$[Cr(H_2O)_6]^{2+}$ has $n = 4$ and $[Fe(H_2O)_6]^{2+}$ has $n = 4$.Therefore,they have the same magnetic moment.

Identify the pair of complexes that have the same magnetic moment (spin-only value).

Similar Questions

$[Fe(NO_2)_3Cl_3]$ and $[Fe(ONO)_3Cl_3]$ show:

Which of the following statements is correct?

The complex ion $[Pt(NO_2)(Py)(NH_3)(NH_2OH)]^+$ will give $..........$ geometrical isomers.

The pair$(s)$ of coordination complexes/ions exhibiting the same kind of isomerism is(are)
$(A)$ $[Cr(NH_3)_5Cl]Cl_2$ and $[Cr(NH_3)_4Cl_2]Cl$
$(B)$ $[Co(NH_3)_4Cl_2]^+$ and $[Pt(NH_3)_2(H_2O)Cl]^+$
$(C)$ $[CoBr_2Cl_2]^{2-}$ and $[PtBr_2Cl_2]^{2-}$
$(D)$ $[Pt(NH_3)_3(NO_3)]Cl$ and $[Pt(NH_3)_3Cl]Br$

Coordination isomerism is caused by the interchange of ligands between the

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