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With the help of Valence Bond theory acc...

With the help of Valence Bond theory account for hybridisation, geometry and magnetic property of `[Ni(CN)_(4)]^(2-)` complex ion `[Z" for "Ni=28]`

Text Solution

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In `[Ni(CN)_4]^(2-)`
(1)E.C of Ni-`(Ar)3d^s4s^2`
E.C of `Ni^(+2)-(Ar)3d^84S^0`
(2) `Ni^(2+)`

(3) In this case, the two unpaired electrons of the 3d orbitals are forced to pair in presence of strong ligand.

These 4 hybrid orbitals overlaps with the other orbitals of ligands and lisgands donate 4 pairs of electrons to form 4 co-ordinate bonds.

(5) (a) Hybridisation-`dsp^3`
(b) geometry-square planal
(c) magnetic-diamagnetic property
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