GKFix MCQ Question

What is the net ionic equation for the reaction of K2Cr2O7 with Na2SO3 in acidic solution?

• A. Cr₂O7²⁻ + SO3²⁻ + H⁺ → Cr³⁺ + SO4²⁻ + H2O
• B. Cr₂O7²⁻ + 3SO3²⁻ + 8H⁺ → 2Cr³⁺ + 3SO4²⁻ + 4H2O
• C. Cr₂O7²⁻ + 2SO3²⁻ + 6H⁺ → 2Cr³⁺ + 2SO4²⁻ + 3H2O
• D. Cr₂O7²⁻ + 4SO3²⁻ + 10H⁺ → 2Cr³⁺ + 4SO4²⁻ + 5H2O