What is the electronic arrangement of a metal atom/ion in an octahedral complex with a $d^4$ configuration,if $\Delta_o < \text{pairing energy}$?
- A$t^4_{2g} e^0_g$
- B$e^4_g t^0_{2g}$
- C$t^3_{2g} e^1_g$
- D$t^2_{2g} e^2_g$
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Which one of the following statements is correct for $d^4$ ions $(P = \text{pairing energy})$?
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MediumKCET 2022
View SolutionWhich of the following correctly represents the order of ligands in the spectrochemical series?
Match the electronic configurations in List-$I$ with appropriate metal complex ions in List-$II$ and choose the correct option.
[Atomic Number: $Fe=26, Mn=25, Co=27$]
List-$I$ List-$II$ $P$. $t_{2g}^6 e_g^0$ $1$. $[Fe(H_2O)_6]^{2+}$ $Q$. $t_{2g}^3 e_g^2$ $2$. $[Mn(H_2O)_6]^{2+}$ $R$. $e^2 t_2^3$ $3$. $[Co(NH_3)_6]^{3+}$ $S$. $t_{2g}^4 e_g^2$ $4$. $[FeCl_4]^{-}$ $5$. $[CoCl_4]^{2-}$
[Atomic Number: $Fe=26, Mn=25, Co=27$]
| List-$I$ | List-$II$ |
| $P$. $t_{2g}^6 e_g^0$ | $1$. $[Fe(H_2O)_6]^{2+}$ |
| $Q$. $t_{2g}^3 e_g^2$ | $2$. $[Mn(H_2O)_6]^{2+}$ |
| $R$. $e^2 t_2^3$ | $3$. $[Co(NH_3)_6]^{3+}$ |
| $S$. $t_{2g}^4 e_g^2$ | $4$. $[FeCl_4]^{-}$ |
| $5$. $[CoCl_4]^{2-}$ |
MediumIIT 2023
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