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| Q. |
What is the minimum required redox potential of water? |
| A. | 100 mv |
| B. | 200 mv |
| C. | 300 mv |
| D. | 400 mv |
| Answer» B. 200 mv | |
| Explanation: the minimum required redox potential of water is 200 mv. manganese oxidation requires a high oxidation potential. | |
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