GKFix MCQ Question

What is the equilibrium expression for HOCl ionization?

• A. Ka = [HOCl]/[H3O+][ClO–]
• B. Ka = [H3O+][HOCl]/[ClO–]
• C. Ka = [ClO–][HOCl]/[H3O+]
• D. Ka = [H3O+][ClO–]/[HOCl]