Consider the following complexes \(\left(\mathrm{A}\right):{\left[\mathrm{CoCl}{\left({\mathrm{NH}}_{3}\right)}_{5}\righ…

Consider the following complexes
\(\left(\mathrm{A}\right):{\left[\mathrm{CoCl}{\left({\mathrm{NH}}_{3}\right)}_{5}\right]}^{2+},\left(\mathrm{B}\right):{\left[\mathrm{Co}(\mathrm{CN}{)}_{6}\right]}^{3-},\\ \left(\mathrm{C}\right):{\left[\mathrm{Co}{\left({\mathrm{NH}}_{3}\right)}_{5}\left({\mathrm{H}}_{2}\mathrm{O}\right)\right]}^{3+},\left(\mathrm{D}\right):{\left[\mathrm{Cu}{\left({\mathrm{H}}_{2}\mathrm{O}\right)}_{4}\right]}^{2+}\)

The correct order of A, B, C and D in terms of wavenumber of light absorbed is

[JEE Main 2024, 06 Apr (Shift 1)]