Coordination CompoundHard

Question

Which of the following statements is not true?

Options

A.MnCl4- ion has tetrahedral geometry and is paramagnetic.
B.[Mn(CN)6]2- ion has octahedral geometry and is paramagnetic.
C.[Cu(CN)4]3- has square planar geometry and is diamagnetic.
D.[Ni(Ph3P)2Br3] has trigonal bipyramidal geometry and is paramagnetic.

Solution

(C) [Cu(CN)4]3-, [Ar]183d10; As there is no empty d-orbital for dsp2 hybridization. So it has sp3 hybridization and is tetrahedral, and diamagnetic.

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