On the basis of VBT explain the nature of bonding in {CoF6}-3
[CoF6 ] 3- : sp3d2 hybridisation; octahedral shape, 4 unpaired electrons, i.e. paramagnetic.
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https://www.meritnation.com/ask-answer/question/why-in-co-nh3-6-3-it-follows-d2sp3-hybridisation-wherea/coordination-compounds/7168375
Kindly refer to the similar link given below :
https://www.meritnation.com/ask-answer/question/why-in-co-nh3-6-3-it-follows-d2sp3-hybridisation-wherea/coordination-compounds/7168375