Identify the ionization isomer of [ Cr ( H ₂ O )₄ , Cl ( NO ₂)] , Cl from the following.

Step-by-step solution

Ionization isomerism occurs when a ligand inside the coordination sphere is exchanged with an anion outside the coordination sphere (counter ion), resulting in a complex that yields different ions in solution. In the given complex [ Cr ( H ₂ O )₄ , Cl ( NO ₂)] , Cl , the counter ion is Cl ^- and the ligands are H ₂ O , Cl ^- , and NO ₂^- . By exchanging the NO ₂^- ligand inside the coordination sphere with the Cl ^- counter ion outside, we get the ionization isomer [ Cr ( H ₂ O )₄ , Cl ₂] ,( NO ₂) . The original co