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How is the iodine clock reaction a kinetic reaction?

How is the iodine clock reaction a kinetic reaction?

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The iodine clock reaction a kinetic reaction because this experiment is used to display chemical kinetics in action. A solution of H2O2 is mixed with one containing KI, starch and Na2S2O3. The colourless mixture suddenly turns dark blue after few seconds.

H2O2 oxidises I- into I3 and I3 will react with starch to form blue black.

H2O2 + 3 I − + 2 H+ → I3− + 2 H2O.

Triiodide formed will be reconverted to iodide by the thiosulfate. (Delaying mechanism) .

I3−(aq) + 2 S2O32−(aq) → 3 I−(aq) + S4O62−(aq)

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