Three complexes, C o C l N H 3 5 2 + I , C o N H 3 5 H 2 O 3 + ( I I ) and C o N H 3 6 3 + I I I absorb light in the visible region. The correct order of the wavelength of light absorbed by them is:

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Correct answer: C. I > I I > I I I

On increasing strength of ligand, wavelength of absorbed radiation decreases Strength of ligands according to spectrochemical series is: N H 3 > H 2 O > C l - ∴ Order of wavelength absorbed will be C l - > H 2 O > N H 3 ∴ Correct order of wavelength absorbed is I > I I > I I I

Three complexes, C o C l N H 3 5 2 + I , C o N H 3 5 H 2 O 3 + ( I I ) and C o N H 3 6 3 + I I I absorb light in the visible region. The correct order of the wavelength of light absorbed by them is:

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