Which of the following statements is not true ?A. `MnCl_(4)^(-)` ion has tetrahedral geometry and is paramagnetic .B. `[Mn(CN)_(6)]^(2-)` ioh has octahedral geometry and is paramagnetic.C. `[Cu(CN)_(4)]^(3-)` has square planar geometry and is diamagnetic.D. `[Ni(Ph_(3)P)_(2)Br_(3)]` has trigonal bipyramidal geometry and is paramagnetic.

Which of the following statements is not true ?A. `MnCl_(4)^(-)` ion h

1.	Which of the following statements is not true ?A. `MnCl_(4)^(-)` ion has tetrahedral geometry and is paramagnetic .B. `[Mn(CN)_(6)]^(2-)` ioh has octahedral geometry and is paramagnetic.C. `[Cu(CN)_(4)]^(3-)` has square planar geometry and is diamagnetic.D. `[Ni(Ph_(3)P)_(2)Br_(3)]` has trigonal bipyramidal geometry and is paramagnetic.
Answer» Correct Answer - C (C ) `[Cu(CN)_(4)]^(3-),[Ar]^(18)3d^(10),` As there is no empty d-orbital for `dsp^(2)` hybridization. So it has `sp^(3)` hybridisation and is tetrahedral, and diamagnetic.

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