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

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Similar Questions

$A$ $[M(H_2O)_6]^{2+}$ complex typically absorbs at around $600 \ nm$. It is allowed to react with ammonia to form a new complex $[M(NH_3)_6]^{2+}$ that should have absorption at ....... $nm$.

Match the following complexes in List-$I$ with their electronic configurations in List-$II$.
List-$I$ (Complex)List-$II$ (Electronic configuration of metal/ion)
$A. [Co(NH_3)_6]^{3+}$$I. t_{2g}^5 e_g^0$
$B. [CoF_6]^{3-}$$II. t_{2g}^6 e_g^0$
$C. [Ni(CO)_4]$$III. t_{2g}^4 e_g^2$
$D. [Fe(CN)_6]^{3-}$$IV. t^4 e^6$

State the limitations of crystal field theory $(CFT)$.

Match List-$I$ with List-$II$.
List-$I$ (Coordination entity) List-$II$ (Wavelength of light absorbed in $nm$)
$A$. $[CoCl(NH_3)_5]^{2+}$ $I$. $310$
$B$. $[Co(NH_3)_6]^{3+}$ $II$. $475$
$C$. $[Co(CN)_6]^{3-}$ $III$. $535$
$D$. $[Cu(H_2O)_4]^{2+}$ $IV$. $600$

Choose the correct answer from the options given below:

The electronic configuration of a metal ion in its complex is $[Ar] 3d^4$. For this metal complex,$\Delta_o < P$ ($P=$ energy required for electron pairing in a single orbital). The distribution of electrons in the complex is:

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