1. Tardigrade
  2. Question
  3. Chemistry
  4. Among the following correct statements are: (I) [ MnCl 6]3,[ FeF 6]3- are paramagnetic having four and five unpaired electrons respectively. (II) Valence bond theory gives a quantitative interpretation of the thermodynamic stabilities of coordination compounds. (III) The crystal field splitting Δ0, depends upon the field produced by the ligand and charge on the metal ion.

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Q. Among the following correct statements are:
(I) $\left[ MnCl _{6}\right]^{3},\left[ FeF _{6}\right]^{3-}$ are paramagnetic having four and five unpaired electrons respectively.
(II) Valence bond theory gives a quantitative interpretation of the thermodynamic stabilities of coordination compounds.
(III) The crystal field splitting $\Delta_{0}$, depends upon the field produced by the ligand and charge on the metal ion.

Coordination Compounds

Solution:

(I) As all are weak field ligands therefore they have four and five number of unpaired electrons as in central metal ion.

(II) $V.B.T.$ does not give any interpretation about the relative thermodynamic stabilities of various complexes. This is one of the limitation of $V.B.T.$

(III) Is correct statement.