Which of the following complex ions absorbs t | vedclass

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Question

(C) The wavelength of absorbed light is inversely proportional to the crystal field splitting energy $(\Delta_o)$.$\lambda \propto \frac{1}{\Delta_o}$

Vedclass · Accepted Answer

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

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(C) The wavelength of absorbed light is inversely proportional to the crystal field splitting energy $(\Delta_o)$.$\lambda \propto \frac{1}{\Delta_o}$.Stronger ligands cause greater splitting (larger $\Delta_o$),which corresponds to the absorption of light with a shorter (minimum) wavelength.According to the spectrochemical series,the strength of the ligands is: $F^- Since $CN^-$ is the strongest ligand among the given options,the complex $[Co(CN)_6]^{3-}$ will have the largest $\Delta_o$ and therefore will absorb light of the minimum wavelength.

Which of the following complex ions absorbs the light of minimum wavelength?

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