Which of the following is the correct order of increasing field strength of ligands to form coordination compounds? [2020]

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Solution

Q.
Which of the following is the correct order of increasing field strength of ligands to form coordination compounds [2020]

1 ${SCN}^{-} < F^{-} < C_{2} O_{4}^{2 -} < {CN}^{-}$

2 ${SCN}^{-} < F^{-} < {CN}^{-} < C_{2} O_{4}^{2 -}$

3 $F^{-} < {SCN}^{-} < C_{2} O_{4}^{2 -} < {CN}^{-}$

4 ${CN}^{-} < C_{2} O_{4}^{2 -} < {SCN}^{-} < F^{-}$

Ans.
(1)

According to spectrochemical series, order of increasing field strength is:

${SCN}^{-} < F^{-} < C_{2} O_{4}^{2 -} < {CN}^{-}$

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Solution

Q. Which of the following is the correct order of increasing field strength of ligands to form coordination compounds [2020]

1 SCN-<F-<C2O42-<CN-

2 SCN-<F-<CN-<C2O42-

3 F-<SCN-<C2O42-<CN-

4 CN-<C2O42-<SCN-<F-

Ans. (1) According to spectrochemical series, order of increasing field strength is: SCN-<F-<C2O42-<CN-

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Q.
Which of the following is the correct order of increasing field strength of ligands to form coordination compounds [2020]

1 ${SCN}^{-} < F^{-} < C_{2} O_{4}^{2 -} < {CN}^{-}$

2 ${SCN}^{-} < F^{-} < {CN}^{-} < C_{2} O_{4}^{2 -}$

3 $F^{-} < {SCN}^{-} < C_{2} O_{4}^{2 -} < {CN}^{-}$

4 ${CN}^{-} < C_{2} O_{4}^{2 -} < {SCN}^{-} < F^{-}$

Ans.
(1)

According to spectrochemical series, order of increasing field strength is:

${SCN}^{-} < F^{-} < C_{2} O_{4}^{2 -} < {CN}^{-}$