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science & technology Online Quiz - 103
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With which of these metals mercury cannot be amalgamated?
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A
Iron
💡 Explanation:
Mercury cannot form amalgams with iron because iron is immiscible with mercury - the two metals do not mix at all. Mercury readily forms amalgams with gold, silver, zinc, and many other metals, which is why mercury was historically used in gold and silver extraction. This is a fundamental chemical property tested in basic chemistry.