GKFix MCQ Question

In a solution of oxalic acid (H₂C₂O₄), if Ka1 = 5.9×10⁻² and Ka2 = 6.4×10⁻⁵, which statement is true?

• A. Ka2 is greater than Ka1
• B. Both constants are equal
• C. Ka1 includes both protons
• D. Ka1 is greater than Ka2