Given below are two statements: Statement I: The coordination complex [ Fe ( CN )₆]⁴⁻ is diamagnetic in nature as all its d-electrons are paired. Statement II: The complex [ Fe ( H ₂ O )₆]³⁺ is strongly repelled by an applied magnetic field. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

In [ Fe ( CN )₆]⁴⁻ , the oxidation state of Fe is +2 . The electronic configuration of Fe ²⁺ is 3d⁶ . Since CN ⁻ is a strong field ligand, it causes pairing of electrons, resulting in a t_ 2g ⁶ e_ g ⁰ configuration. As all electrons are paired, the complex is diamagnetic. Thus, Statement I is correct. In [ Fe ( H ₂ O )₆]³⁺ , the oxidation state of Fe is +3 . The electronic configuration of Fe ³⁺ is 3d⁵ . Since H ₂ O is a weak field ligand, pairing does not occur, resulting in a t_ 2g ³ e_ g ² configuration with 5 u