Q.
According to Valence bond theory, which of the following is an example of outer orbital complex
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a
K3FeF6
b
CoNH36Cl3
c
K4FeCN6
d
K3CoNO26
answer is A.
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Detailed Solution
CN-, NO2-, NH3 are strong field ligands and form inner orbital complexes; FeF6−3 is an example of outer orbital complex. F- is a weak field ligand.No pairing occurs against Hund’s rule.
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