Correct increasing order for the wavelength o | vedclass

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

Question

(A) The crystal field splitting energy $(\Delta_{0})$ increases as the field strength of the ligand increases.The spectrochemical series order for the

Vedclass · Accepted Answer

$[Co(CN)_6]^{3-}, [Co(NH_3)_6]^{3+}, [Co(NH_3)_5(H_2O)]^{3+}, [Co(NH_3)_5Cl]^{2+}$

Vedclass · Answer

(A) The crystal field splitting energy $(\Delta_{0})$ increases as the field strength of the ligand increases.The spectrochemical series order for the given ligands is: $CN^{-} > NH_3 > H_2O > Cl^{-}$.Since the energy of the absorbed light is inversely proportional to the wavelength $(\lambda \propto \frac{1}{\Delta_{0}})$,a stronger ligand field results in a larger $\Delta_{0}$ and a shorter wavelength of absorption.Thus,the increasing order of wavelength is: $[Co(CN)_6]^{3-} < [Co(NH_3)_6]^{3+} < [Co(NH_3)_5(H_2O)]^{3+} < [Co(NH_3)_5Cl]^{2+}$.

Correct increasing order for the wavelength of absorption in the visible region for the complexes of $Co^{3+}$ is :

Similar Questions

What is crystal field splitting energy? How does the magnitude of $\Delta_{o}$ decide the actual configuration of $d$-orbitals in a coordination entity?

Which of the following is correct related to the colours of $TiCl_3$ $(X)$ and $[Ti(H_2O)_6]Cl_3$ $(Y)$?

Which of the following spectrochemical series is correct?

Which of the following complex ions has electrons that are symmetrically filled in both $t_{2g}$ and $e_g$ orbitals?

Which one of the following complexes will have $\Delta_0 = 0$ and $\mu = 5.96 \ B.M.?$

Vedclass Test Series

Exam Paper Generator

Online Exam Module