GKFix MCQ Question

Which of the following pairs represents solvate isomers?

• A. [Co(NH₃)₅Cl]SO₄ and [Co(NH₃)₅(SO₄)]Cl
• B. [Cr(H₂O)₆]Cl₃ and [Cr(H₂O)₅Cl]Cl₂·H₂O
• C. [Co(en)₃]³⁺ and its optical isomers
• D. [Pt(NH₃)₂Cl₂] cis and trans forms