JEE Main 202522 Jan, Morning shiftChemistryEasyCoordination Compounds198× since 2002From the magnetic behaviour of [NiCl4]2−\mathrm{[NiCl_4]^{2-}}[NiCl4]2− (paramagnetic) and [Ni(CO)4]\mathrm{[Ni(CO)_4]}[Ni(CO)4] (diamagnetic), choose the correct geometry and oxidation state.AOption A. [NiCl4]2−\mathrm{[NiCl_4]^{2-}}[NiCl4]2−: NiII^{\mathrm{II}}II, square planar; [Ni(CO)4]\mathrm{[Ni(CO)_4]}[Ni(CO)4]: Ni(0), square planarBOption B. [NiCl4]2−\mathrm{[NiCl_4]^{2-}}[NiCl4]2−: NiII^{\mathrm{II}}II, tetrahedral; [Ni(CO)4]\mathrm{[Ni(CO)_4]}[Ni(CO)4]: Ni(0), tetrahedralCOption C. [NiCl4]2−\mathrm{[NiCl_4]^{2-}}[NiCl4]2−: Ni(0), tetrahedral; [Ni(CO)4]\mathrm{[Ni(CO)_4]}[Ni(CO)4]: Ni(0), square planarDOption D. [NiCl4]2−\mathrm{[NiCl_4]^{2-}}[NiCl4]2−: NiII^{\mathrm{II}}II, tetrahedral; [Ni(CO)4]\mathrm{[Ni(CO)_4]}[Ni(CO)4]: NiII^{\mathrm{II}}II, square planarCheckSkip · show solution
