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Using the valence bond approach, deduce ...

Using the valence bond approach, deduce the shape and magnetic character of `[Cr(CO)_(6)]`.

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Electronic configuration of Cr

Cr(0) in `[Cr(CO)_(6)]` has electronic configuration [Ar) `4s^(0)3d^(6)`. This is because CO will cause pairing of electrons as it is strong field ligand.

`d^(2)sp^(3)` hybridisation, takes place giving octahedral shape. As there are no unpaired electrons, it is diamagnetic.
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