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What is the n-factor (equivalents per mole) of Ba(MnO4)2 when it acts as an oxidizing agent in acidic medium?
- 2
- 6
- 10
- none of these
Correct answer: 10
Solution
Ba(MnO4)2 contains two MnO4- units. In acidic medium each MnO4- ion accepts 5 electrons (Mn goes from +7 to +2), so the total electron gain per mole of Ba(MnO4)2 is 2 * 5 = 10.
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