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Question
Which of the following method is used to purify mercury, zinc and cadmium?
Options
Distillation
Liquation
Oxidation
Electrorefining
MCQ
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Solution
Distillation
Explanation:
Mercury, zinc, and cadmium have very low boiling points. They are volatile metals. Heating turns them into vapour easily, leaving the non-volatile impurities behind.
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Chapter 7: Metallurgy - Intext Question [Page 145]
