Consider the following complexes
(A) $\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}$, (B) $\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$, (C) $$ \left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{H}_2 \mathrm{O}\right)\right]^{3+} $$, (D) $\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_4\right]^{2+}$
The correct order of A, B, C and D in terms of wavenumber of light absorbed is :
Solution
<p>Wavenumber $=\frac{1}{\lambda} \propto$ Frequency $\propto \Delta_0$</p>
<p>Wavenumber order : $\mathrm{D}<\mathrm{A}<\mathrm{C}<\mathrm{B}$</p>
About this question
Subject: Chemistry · Chapter: Coordination Compounds · Topic: Ligands and Coordination Number
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