Hydrazine is used in water treatment for the removal of___________________?
Correct answer: D. Dissolved oxygen
- A. Colloidal impurities
- B. Chlorinous taste
- C. Turbidity
- D. Dissolved oxygen
Explanation
Hydrazine acts as an oxygen scavenger, reacting with dissolved oxygen in boiler-feed or treatment water. It does not primarily remove turbidity, colloids, or chlorinous taste.
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