The correct order of the complexes in terms wavelength of light absorbed is

(A) \({\left[\mathrm{Co}{\left({\mathrm{NH}}_{3}\right)}_{5}\left({\mathrm{H}}_{2}\mathrm{O}\right)\right]}^{3+}\)

(B) \({\left[\mathrm{Co}{\left({\mathrm{NH}}_{3}\right)}_{6}\right]}^{3+}\)

(C) \({\left[\mathrm{Co}(\mathrm{CN}{)}_{6}\right]}^{3-}\)

(D) \({\left[\mathrm{CoCl}{\left({\mathrm{NH}}_{3}\right)}_{5}\right]}^{2+}\)

[JEE Main 2025, 3 Apr (Shift 1)]

Question

The correct order of the complexes in terms wavelength of light absorbed is

(A) \({\left[\mathrm{Co}{\left({\mathrm{NH}}_{3}\right)}_{5}\left({\mathrm{H}}_{2}\mathrm{O}\right)\right]}^{3+}\)

(B) \({\left[\mathrm{Co}{\left({\mathrm{NH}}_{3}\right)}_{6}\right]}^{3+}\)

(C) \({\left[\mathrm{Co}(\mathrm{CN}{)}_{6}\right]}^{3-}\)

(D) \({\left[\mathrm{CoCl}{\left({\mathrm{NH}}_{3}\right)}_{5}\right]}^{2+}\)

[JEE Main 2025, 3 Apr (Shift 1)]

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The correct order of the complexes in terms wavelength of light absorbed is (A) \({\left[\mathrm{Co}{\left({\mathrm{NH}}…