| (I) \[{{\{MnC{{l}_{6}}\}}^{3-}},{{[Fe{{F}_{6}}]}^{3-}}\], and \[{{[Co{{F}_{6}}]}^{3-}}\]are paramagnetic having four, five and four unpaired electrons respectively. |
| (II) Valence bond theory gives a quantitative interpretation of the thermodynamic stabilities of coordination compounds. |
| (III) The crystal field spliting \[{{\Delta }_{o}}\], depends upon the field produced by the ligand and charge on the metal ion. |
A) I, III
B) I, II
C) I, II, III
D) II, III
Correct Answer: B
Solution :
| I: As all are weak field ligands therefore all will have same number of unpaired electrons as in central metal ion. |
| II : V.B.T. does not give any interpretation about etc. |
| relative thermodynamic stabilities of various complex. |
| This is one of the limitation of V.B.T. |
| III: is correct statement. |
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