On the basis of crystal field theory, explain why Co(III) forms a paramagnetic octahedral complex with weak field ligands, whereas it forms a diamagnetic octahedral complex with strong field ligands.

Question

On the basis of crystal field theory, explain why Co(III) forms a paramagnetic octahedral complex with weak field ligands, whereas it forms a diamagnetic octahedral complex with strong field ligands., Weak field ligands cause a higher crystal field splitting, leading to unpaired electrons in Co(III) complexes., Weak field ligands result in a lower crystal field splitting, causing Co(III) complexes to be diamagnetic., Strong field ligands lead to a higher crystal field splitting, resulting in paired electrons in Co(III) complexes., Strong field ligands cause a lower crystal field splitting, making Co(III) complexes paramagnetic.

MARKS App · Accepted Answer

Correct Option is : (A) Weak field ligands cause a higher crystal field splitting, leading to unpaired electrons in Co(III) complexes.

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