The correct order for wavelengths of light ab | vedclass

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Question

(A) The wavelength of light absorbed $(\lambda)$ is inversely proportional to the crystal field splitting energy $(\Delta_o)$.According to the spectro

Vedclass · Accepted Answer

$[CoCl(NH_{3})_{5}]^{2+} > [Co(NH_{3})_{6}]^{3+} > [Co(CN)_{6}]^{3-}$

Vedclass · Answer

(A) The wavelength of light absorbed $(\lambda)$ is inversely proportional to the crystal field splitting energy $(\Delta_o)$.According to the spectrochemical series, the strength of the ligands is $Cl^{-} Since $\Delta_o$ is directly proportional to the ligand field strength, the order of $\Delta_o$ is $[CoCl(NH_{3})_{5}]^{2+} Therefore, the order of wavelength of light absorbed $(\lambda \propto 1/\Delta_o)$ is $[CoCl(NH_{3})_{5}]^{2+} > [Co(NH_{3})_{6}]^{3+} > [Co(CN)_{6}]^{3-}$.

The correct order for wavelengths of light absorbed in the complex ions $[CoCl(NH_{3})_{5}]^{2+}$, $[Co(NH_{3})_{6}]^{3+}$ and $[Co(CN)_{6}]^{3-}$ is

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