Multiple choice general knowledge science & technology

With which of these metals mercury cannot be amalgamated?

  1. Zinc

  2. Iron

  3. Gold

  4. Silver
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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