The degeneracy of d- orbitals is lost under I. Strong field ligandII. Weak field ligandIII. Mixed field ligandIV. Chelated ligand field Choose the correct code:
A
I, II and IV
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B
I and II
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C
I, II, III and IV
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D
I, II and III
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Solution
The correct option is C I, II, III and IV According to the CFT of d-block elements. Degenerate d- orbitals undergo splitting under ligand field created by strong, weak, chelated or mixed ligands.