The balanced chemical equation is:

2MnO4^- + 6H^+ + 5SO3^2- → 2Mn^2+ + 5SO4^2- + 3H2O
2MnO4^- + 6H^+ + 5C2O4^2- → 2Mn^2+ + 10CO2 + 8H2O
MnO4^- + 8H^+ + 5e^- → Mn^2+ + 4H2O
MnO4^- + 4H^+ + e^- → MnO2 + 2H2O

Correct answer: 2MnO4^- + 6H^+ + 5SO3^2- → 2Mn^2+ + 5SO4^2- + 3H2O

Solution

Option A is the correct balanced chemical equation for the reaction between permanganate ion (MnO4^-), hydrogen ion (H^+), and sulfite ion (SO3^2-), producing Mn^2+, sulfate ion (SO4^2-), and water.

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