Three complexes,[CoCl(NH_3)_5]^{2+} (I),[Co(N | vedclass

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

Question

(C) The energy of absorbed light $(E)$ is inversely proportional to the wavelength $(\lambda)$ of the absorbed light,i.e.,$E = \frac{hc}{\lambda}$.The

Vedclass · Accepted Answer

$I > II > III$

Vedclass · Answer

(C) The energy of absorbed light $(E)$ is inversely proportional to the wavelength $(\lambda)$ of the absorbed light,i.e.,$E = \frac{hc}{\lambda}$.The energy of absorption corresponds to the Crystal Field Splitting Energy ($CFSE$ or $\Delta_o$),which depends on the strength of the ligands.The spectrochemical series order for the ligands is $Cl^- Comparing the complexes:$(I) [CoCl(NH_3)_5]^{2 }$ has $Cl^-$ as a ligand.$(II) [Co(NH_3)_5H_2O]^{3 }$ has $H_2O$ as a ligand.$(III) [Co(NH_3)_6]^{3 }$ has $NH_3$ as a ligand.Since $NH_3$ is a stronger ligand than $H_2O$,and $H_2O$ is stronger than $Cl^-$,the order of $CFSE$ is $(III) > (II) > (I)$.Since $E \propto \Delta_o$,the order of energy absorbed is $(III) > (II) > (I)$.Since $\lambda \propto \frac{1}{E}$,the order of wavelength absorbed is $(I) > (II) > (III)$.

Three complexes,$[CoCl(NH_3)_5]^{2+} (I)$,$[Co(NH_3)_5H_2O]^{3+} (II)$ and $[Co(NH_3)_6]^{3+} (III)$ absorb light in the visible region. The correct order of the wavelength of light absorbed by them is

Similar Questions

The order of energy absorbed, which is responsible for the color of the following complexes, is:
$A: [Ni(H_{2}O)_{2}(en)_{2}]^{2+}$
$B: [Ni(H_{2}O)_{4}(en)]^{2+}$
$C: [Ni(en)_{3}]^{2+}$

Crystal field stabilization energy for high spin $d^4$ octahedral complex is

For which of the following coordination complexes will the value of $\Delta_0$ be the maximum?

The Crystal Field Stabilization Energy $(CFSE)$ and magnetic moment (spin-only) of an octahedral aqua complex of a metal ion $(M^{2+})$ are $-0.8\, \Delta_{0}$ and $3.87\, BM$,respectively. Identify $(M^{2+})$:

What is pairing energy $(P)$? Explain the distribution of $d^n$ ($n=1$ to $10$) electrons in high spin and low spin octahedral complexes.

Vedclass Test Series

Exam Paper Generator

Online Exam Module