STANDARDChemistry-Coordination Compounds
STANDARD Chemistry Crystal Field Theory MCQ Question
Type: MCQ-conceptual-Medium-Class 12
[FeF₆]³⁻ is paramagnetic due to presence of unpaired electrons in the complex. The five electrons remain unpaired because
A
fluorine is the most electronegative element
B
F⁻ is a weak field ligand hence does not cause pairing of electrons
Correct Answer
Option B
Detailed Explanation
Fluoride ion (F⁻) is a weak field ligand and does not cause pairing of electrons in the d-orbitals, resulting in unpaired electrons.
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