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In crystal field theory, the d-orbitals of an octahedral metal complex split into:
ALower $t_{2g}$ (three orbitals) and higher $e_g$ (two orbitals)
BHigher $t_{2g}$ (three) and lower $e_g$ (two) for any complex
CThree equal levels of two orbitals each at one energy
DFive equal levels of one orbital each with same energy
Answer & Solution
Correct answer: A. Lower $t_{2g}$ (three orbitals) and higher $e_g$ (two orbitals)
Octahedral field: $t_{2g}$ lower (3 orbitals), $e_g$ higher (2 orbitals).
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