GKFix MCQ Question

Which of the following pairs represents coordination isomers?

• A. [Co(NH₃)₅Cl]Cl₂ and [Co(NH₃)₅(H₂O)]Cl₃
• B. [Co(NH₃)₆][Cr(CN)₆] and [Cr(NH₃)₆][Co(CN)₆]
• C. [Co(NH₃)₅(NO₂)]Cl₂ (red) and (yellow)
• D. [CrCl₂(ox)₂]³⁻ cis and trans