Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl–, CN

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Q:23

Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl–, CN– and H2O, respectively are

Octahedral, tetrahedral and square planar

Tetrahedral, square planar and octahedral

Square planar, tetrahedral and octahedral

Octahedral, square planar and octahedral

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Nickel (Z = 28) combines with a uninegative monodentate ligand X– to form a paramagnetic complex [NiX4]2–. The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively

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