Consider the following metal complexes:1. [Co | vedclass

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

Question

(B) The energy of absorbed light is inversely proportional to the wavelength: $\Delta_0 \propto \frac{1}{\lambda}$.To absorb light with the shortest w

Vedclass · Accepted Answer

$0$

Vedclass · Answer

(B) The energy of absorbed light is inversely proportional to the wavelength: $\Delta_0 \propto \frac{1}{\lambda}$.To absorb light with the shortest wavelength,the complex must have the largest crystal field splitting energy $(\Delta_0)$.Among the ligands provided $(Cl^- Therefore,$[Co(CN)_6]^{3-}$ has the largest $\Delta_0$ and absorbs light of the shortest wavelength.In $[Co(CN)_6]^{3-}$,the oxidation state of $Co$ is $+3$,which corresponds to a $d^6$ configuration.Since $CN^-$ is a strong field ligand,it causes pairing of electrons,resulting in a low-spin $t_{2g}^6 e_g^0$ configuration.The number of unpaired electrons $(n)$ is $0$,so the spin-only magnetic moment $\mu = \sqrt{n(n+2)} = 0 \ B.M.$

Consider the following metal complexes:
$1. [Co(NH_3)_6]^{3+}$
$2. [CoCl(NH_3)_5]^{2+}$
$3. [Co(CN)_6]^{3-}$
$4. [Co(NH_3)_5(H_2O)]^{3+}$
The spin-only magnetic moment value of the complex that absorbs light with the shortest wavelength is $B.M.$ (Nearest integer).

Similar Questions

Which of the following are paramagnetic?
$A$. $[NiCl_4]^{2-}$
$B$. $Ni(CO)_4$
$C$. $[Ni(CN)_4]^{2-}$
$D$. $[Ni(H_2O)_6]^{2+}$
$E$. $Ni(PPh_3)_4$
Choose the correct answer from the options given below:

The number of isomers possible for the square planar complex $K_2[PdClBr_2(SCN)]$ is

Which of the following pairs is an example of linkage isomerism?

Which complex among the following has the highest value of spin only magnetic moment?
$[Fe(CN)_6]^{3-}, [Fe(CN)_6]^{4-}, [Ni(CN)_4]^{2-}, [NiCl_4]^{2-}$

The observed magnetic moment of the complex $[Mn(NCS)_6]^{x-}$ is $6.06 \ BM$. The numerical value of $x$ is $.......$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Consider the following metal complexes:$1. [Co(NH_3)_6]^{3+}$$2. [CoCl(NH_3)_5]^{2+}$$3. [Co(CN)_6]^{3-}$$4. [Co(NH_3)_5(H_2O)]^{3+}$The spin-only magnetic moment value of the complex that absorbs light with the shortest wavelength is $B.M.$ (Nearest integer).