Which of the following spectrochemical series is TRUE?

Question

Which of the following spectrochemical series is TRUE?, $ \mathrm{SCN}^{-} < \mathrm{NH}_{3} < \mathrm{F}^{-} < $en $ < \mathrm{CO} $, $ \mathrm{SCN}^{-} < \mathrm{F}^{-} < \mathrm{NH}_{3} < $ en $ < \mathrm{CO} $, $ \mathrm{SCN}^{-} < \mathrm{F}^{-} < \mathrm{en} < \mathrm{NH}_{3} < \mathrm{CO} $, $ \mathrm{SCN}^{-} < \mathrm{F}^{-} < $en $ < \mathrm{CO} < \mathrm{NH}_{3} $

MARKS App · Accepted Answer

As the electronegativity of electron donating atom increases, its electron donating tendency decreases. Hence, the correct order of spectrochemical series: SCN - F - NH 3 en CO

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