Nickel `(Z=28)` combines with a uninegative monodentate ligand `X^(-)` – InterviewSolution

InterviewSolution

1.	Nickel `(Z=28)` combines with a uninegative monodentate ligand `X^(-)` to form a paramagnetic complex `[NiX_4]^(2-)`. The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively:A. one, tetrahedralB. two, tetrahedralC. one, square planarD. two, square planar.
Answer» is the correct answer because out of the three Cl atoms present, only one represents primary valency (ionisable) .

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