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0 - +5
Reduksi : I2 + 2e ⇒ 2 I^- x 5
Oksidasi : I2 + 6 H2O + 12 OH^- ⇒ 2 IO3^- + 12H^+ 12 OH^- + 10e ×1
5 I2 + 10e + 5 I2 + 6 H2O + 12 OH^- ⇒ 10 I^- + 2 IO3^- + 12 H2O + 10e
10 I2 + 12 OH^- ⇒ 10 I^- + 2 IO3^- + 6 H2O
maka: 10 I2 + 12 KOH ⇒ 10 KI + 2 KIO3 + 6 H2O