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Magnesium obtained in the electrolytic process has a minimum purity of ___________

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Magnesium obtained in the electrolytic process has a minimum purity of ___________

(a) 69%

(b) 22.65%

(c) 99.98%

(d) 100%

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Question is from Processes of Magnesium and its Alloys topic in section Magnesium Alloys of Aerospace Materials & Processes

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Correct answer is (c) 99.98%

For explanation I would say: Electrolytic process is one of the several processes used to extract magnesium from seawater, brine or any other ores. If it is necessary this process can yield magnesium with a minimum purity of 99.98%.

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