Given below are 4 statements. Two of these are correct statements. Identify them. A. Co ²⁺ is easily oxidised to Co ³⁺ in the presence of a strong ligand like CN ⁻ B. [ Fe ( CN )₆]⁴⁻ is an octahedral complex ion which is paramagnetic in nature. C. Removal of H ₂ O molecules from [ Ti ( H ₂ O )₆] Cl ₃ on strong heating converts it to a colourless compound. D. Crystal Field splitting in Octahedral and Tetrahedral compl

Step-by-step solution

Statement A is correct. In the presence of strong field ligands like CN ⁻ , the crystal field splitting energy is high, which stabilizes the Co ³⁺ oxidation state ( d^6 configuration) over Co ²⁺ ( d^7 configuration) due to the large crystal field stabilization energy (CFSE). Statement B is incorrect. [ Fe ( CN )₆]⁴⁻ contains Fe ²⁺ ( d^6 ). CN ⁻ is a strong field ligand, causing pairing of electrons in the t_ 2g orbitals. Thus, it is diamagnetic, not paramagnetic. Statement C is correct. [ Ti ( H ₂ O )₆] Cl ₃ is a d