Which metal is extracted from sea water?
Correct answer: B. Magnesium
- A. Potassium
- B. Magnesium
- C. Aluminum
- D. None of these
Explanation
Magnesium compounds dissolved in seawater can be converted industrially into magnesium metal, commonly through precipitation and electrolysis. Potassium is also present in seawater but is not the standard answer to this extraction question.
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