Chlorine dioxide can revert to chlorite and chlorate under which conditions?

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Multiple Choice

Chlorine dioxide can revert to chlorite and chlorate under which conditions?

Explanation:
Chlorine dioxide tends to disproportionate into chlorite (ClO2−) and chlorate (ClO3−) when the solution becomes alkaline and is heated. The higher pH shifts the chemical equilibrium toward these oxidized forms, and higher temperature speeds the reaction, so more chlorine dioxide converts to chlorite and chlorate under these conditions. That’s why the scenario with higher pH and high temperature, producing chlorite and chlorate, best describes when chlorine dioxide reverts. Acidic or cooler conditions slow this process, and the other reagents shown don’t define the reversion mechanism.

Chlorine dioxide tends to disproportionate into chlorite (ClO2−) and chlorate (ClO3−) when the solution becomes alkaline and is heated. The higher pH shifts the chemical equilibrium toward these oxidized forms, and higher temperature speeds the reaction, so more chlorine dioxide converts to chlorite and chlorate under these conditions. That’s why the scenario with higher pH and high temperature, producing chlorite and chlorate, best describes when chlorine dioxide reverts. Acidic or cooler conditions slow this process, and the other reagents shown don’t define the reversion mechanism.

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