NEET 2017 Chemistry question

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of is

(1)Correct
(2)
(3)
(4)

Answer: (1)

Solution

In the spectrochemical series the ligand field strength increases as . A stronger ligand causes a larger crystal field splitting and so a larger energy absorbed, . Larger means a shorter wavelength of

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Question ID VK-092087