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Nickel (Z = 28) combines with a uninegat...

Nickel (Z = 28) combines with a uninegative monodentate ligand `X^(-)` to form a paramagnetic complex `[NiX_4]^(2-)` . The number of unpaired electrons in the nickel and geometry of this complex ion are, respectively

A

one, tetrahedral

B

two, tetrahedral

C

one, square planar

D

two, square planar

Text Solution

Verified by Experts

The correct Answer is:
B

Nickel has two unpared electrons and geometry is tetrahedral due to `sp^3` hybridisation.
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