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प्रश्न
Using valence bond theory, predict the hybridization and magnetic character of the following:
[CoF6]3– [Atomic number of Co = 27]
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उत्तर
[CoF6]3– orbitals of Co2+ ion:

Co2+ undergoing sp3d2 hybridisation:

[CoF6]3– outer orbital or high-spin complex:

Hybridization = sp3d2
Magnetic Nature = Paramagnetic
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Statement I: Both [Co(NH3)6]3+ and [CoF6]3− complexes are octahedral but differ in their magnetic behavior.
Statement II: [Co(NH3)6]3+ is diamagnetic whereas [CoF6]3− is paramagnetic.
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