The correct order of the wavelength of light absorbed by the following complexes is,
A. $\left[\mat

Question

The correct order of the wavelength of light absorbed by the following complexes is, 
A. $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ 
B. $\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$ 
C. $\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_4\right]^{2+}$ 
D. $\left[\mathrm{Ti}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$ 
Choose the correct answer from the options given below:

Professor PC Thomas Classes · Answer

(d) : Stronger is the strength of the ligand, greater is the splitting and higher is the energy absorbed by complex.
$
	ext { As } E=\frac{h c}{\lambda} 	ext { or } E \propto \frac{1}{\lambda}
$
So, wavelength of light absorbed is inversely proportional to strength of the ligand.