JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Given below are two statements:
Statement I: Each electron in \(e_g\) orbitals destabilizes the orbitals by \(+0.6\Delta_o\) and each electron in the \(t_{2g}\) orbitals stabilizes the orbitals by \(-0.4\Delta_o\) in an octahedral field on the basis of crystal field theory.
Statement II: All the d-orbitals of the transition metals have the same energy in their free atomic state but when a complex is formed the ligands destroy the degeneracy of these orbitals on the basis of crystal field theory.
In the light of the above statements, choose the correct answer from the options given below
- A Both Statement I and Statement II are correct
- B Both Statement I and Statement II are incorrect
- C Statement I is correct but Statement II is incorrect
- D Statement I is incorrect but Statement II is correct
Answer & Solution
Correct Answer
(A) Both Statement I and Statement II are correct
Step-by-step Solution
Detailed explanation
In an octahedral crystal field, the five degenerate d-orbitals split into two sets: a lower energy \(t_{2g}\) set and a higher energy \(e_g\) set. The energy of the \(t_{2g}\) orbitals is lowered by \(0.4\Delta_o\) (stabilization of \(-0.4\Delta_o\)) and the energy of the…
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