[ Ni ( PPh ₃ )₂ Cl ₂ ] is a paramagnetic complex. Identify the INCORRECT statements about this complex. A. The complex exhibits geometrical isomerism. B. The complex is white in colour. C. The calculated spin-only magnetic moment of the complex is 2.84 BM . D. The calculated CFSE (Crystal Field Stabilization Energy) of Ni in this complex is -0.8 _ o . E. The geometrical arrangement of ligands in this complex is simil

Step-by-step solution

In [Ni(PPh₃)₂Cl₂] , Nickel is in +2 oxidation state. Ni²⁺ has a 3d^8 electronic configuration. The complex is given as paramagnetic. For a 4-coordinate d^8 system, paramagnetism implies a tetrahedral geometry ( sp^3 hybridization) with two unpaired electrons. Statement A: Tetrahedral complexes of the type [MA₂B₂] do not exhibit geometrical isomerism because all positions are adjacent to each other. Thus, A is incorrect. Statement B: Most Ni(II) complexes are colored due to d-d transitions. [Ni(PPh₃)₂Cl₂] is a dark