Which cyano complex exhibits the minimum magn | vedclass

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Question

(A) To determine the magnetic moment,we calculate the number of unpaired electrons $(n)$ in each complex. $CN^-$ is a strong field ligand,causing pair

Vedclass · Accepted Answer

$[Co(CN)_6]^{3-}$

Vedclass · Answer

(A) To determine the magnetic moment,we calculate the number of unpaired electrons $(n)$ in each complex. $CN^-$ is a strong field ligand,causing pairing of electrons.(Atomic numbers: $Cr=24, Mn=25, Fe=26, Co=27$)ComplexElectronic Configuration of Metal IonUnpaired Electrons $(n)$Magnetic Moment $(\mu = \sqrt{n(n+2)} \ BM)$$[Co(CN)_6]^{3-}$$Co^{3+} (3d^6)$$0$$0 \ BM$$[Fe(CN)_6]^{3-}$$Fe^{3+} (3d^5)$$1$$\sqrt{3} \ BM \approx 1.73 \ BM$$[Mn(CN)_6]^{3-}$$Mn^{3+} (3d^4)$$2$$\sqrt{8} \ BM \approx 2.83 \ BM$$[Cr(CN)_6]^{3-}$$Cr^{3+} (3d^3)$$3$$\sqrt{15} \ BM \approx 3.87 \ BM$Since $[Co(CN)_6]^{3-}$ has $0$ unpaired electrons,it has the minimum magnetic moment of $0 \ BM$.

Which cyano complex exhibits the minimum magnetic moment?

Similar Questions

Choose the correct code regarding the possible number of geometrical isomers exhibited by the following complexes:
$I. [CrCl_2(NO_2)_2(NH_3)_2]^-$
$II. [Co(NO_2)_3(NH_3)_3]$
$III. [PtCl(NO_2)(NH_3)(py)]$
$IV. [PtBrCl(en)]$
Select the correct sequence for $I - II - III - IV$.

Identify the diamagnetic octahedral complex ions from below $:$
$A. [Mn(CN)_6]^{3-}$
$B. [Co(NH_3)_6]^{3+}$
$C. [Fe(CN)_6]^{4-}$
$D. [Co(H_2O)_3F_3]$
Choose the correct answer from the options given below $:$

Which of the following compounds is colored but does not contain any unpaired electrons?

How many geometrical isomers and stereoisomers are possible for $[Pt(NO_2)(NH_3)(NH_2OH)(Py)]^+$ and $[Pt(Br)(Cl)(I)(NO_2)(NH_3)(Py)]$ respectively?

Which of the following compounds may show optical activity?

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