The reaction of MnO4–(aq) and H2C2O4(aq) in acidic solution is autocatalytic because one of the prod — Kinetics Chemistry Question

The reaction of MnO₄–(aq) and H₂C₂O₄(aq) in acidic solution is autocatalytic because one of the products, Mn²⁺(aq), is a reducing agent. Starting from a mixture of reactants, which of the following graphs best shows how the concentration of MnO₄–(aq) changes over time?