Which of the following statements related to crystal field splitting in octahedral coordination entities is…

Which of the following statements related to crystal field splitting in octahedral coordination entities is incorrect?
  1. The $d x^{2}-y^{2}$ and $d z^{2}$ orbitals has more energy as compared to $d_{x y}, d_{y z}$ and $d_{x z}$ orbitals.
  2. Crystal field splitting energy $\left(\Delta_{\mathrm{o}}ight)$ depends directly on the charge of the metal ion and on the field produced by the ligand.
  3. In the presence of $\mathrm{Br}^{-}$ as a ligand the distribution of electrons for $d^{4}$
    configuration will be $\mathrm{t}_{2 \mathrm{~g}}^{3}, \mathrm{e}_{\mathrm{g}}^{1}$,
  4. In the presence of $\mathrm{CN}^{-}$ as a ligand $\Delta_{\mathrm{o}} < \mathrm{P}$.

Solution

$\mathrm{CN}^{-}$ is a strong field ligand and form low spin complexes thus $\Delta_{\mathrm{o}}>\mathrm{P}$ ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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