GKFix MCQ Question

What is the coordination isomer of [Cr(NH₃)₆][Co(CN)₆]?

• A. [Cr(CN)₆][Co(NH₃)₆]
• B. [Co(NH₃)₆][Cr(CN)₆]
• C. [Cr(NH₃)₅Cl][Co(CN)₆]
• D. [Co(CN)₆][Cr(NH₃)₆]