0.167 gram of KBrO3 is reacted with excess of KI. And liberated I2 requires 75 ml of Na2S2O3. What is normality of Na2S2O3 (where KBrO3 is converted in KBr) (at. wt. of Br is = 80)

Question

Prashant Kotian · Accepted Answer

Correct answer: A. Sol. 3 2 BrO I I Br       2 2 2 2 3 4 6 I S O I S O       Meq. of KBrO3 = Meq. of Na2S2O3

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