According to crystal field theory, for which of the following coordination entities is $\Delta_o$ maximum?

  • A
    $[CoCl(NH_3)_5]^{2+}$
  • B
    $[Co(NH_3)_6]^{3+}$
  • C
    $[Co(CN)_6]^{3-}$
  • D
    $[Co(NH_3)_5(H_2O)]^{3+}$

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On what factors does the crystal field splitting in an octahedral complex depend?

In which case is a $d^7$ complex species more stable?

In which of the following,complex ions are not in correct order with respect to their magnitude of crystal field splitting?

The correct order of ligands arranged in increasing field strength.

What is the electronic arrangement of a metal atom/ion in an octahedral complex with a $d^4$ configuration,if $\Delta_o < \text{pairing energy}$?

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