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Water Quality Assessment
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Which of the following is a common method for measuring the dissolved oxygen (DO) content in water?
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A
Titration with potassium permanganate
💡 Explanation:
Titration with potassium permanganate is a widely used method for determining the DO content in water. It involves adding a known amount of potassium permanganate solution to a water sample and observing the color change. The amount of potassium permanganate consumed is directly proportional to the DO concentration.