Questions
Nickel (Z = 28) combines with a uninegative monodentate ligand to form a paramagnetic complex [NiX4]2-. The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively:
detailed solution
Correct option is B
If X- is weak field ligand (say Cl-) then NiCl42− is tetrahedral (sp3) with two unpaired electrons. If X- is strong field ligand (say CN-), then NiCN42− is square planar (dsp2) with no unpaired electron. Also given NiX42− is paramagnetic.Similar Questions
Among species, the hybridization states at the Ni atom are, respectively
(At. no. of Ni = 28)
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