NEET 2020

NEET 2020 Chemistry question on Coordination Compounds

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?
  1. A.
    SCN−<F−<CN−<C2O42−\text{SCN}^- < \text{F}^- < \text{CN}^- < \text{C}_2\text{O}_4^{2-}
  2. B.
    F−<SCN−<C2O42−<CN−\text{F}^- < \text{SCN}^- < \text{C}_2\text{O}_4^{2-} < \text{CN}^-
  3. C.
    CN−<C2O42−<SCN−<F−\text{CN}^- < \text{C}_2\text{O}_4^{2-} < \text{SCN}^- < \text{F}^-
  4. D.
    SCN−<F−<C2O42−<CN−\text{SCN}^- < \text{F}^- < \text{C}_2\text{O}_4^{2-} < \text{CN}^-
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Correct option: D

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