Metals Plating and Purification Quiz
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Questions and Answers

What is the purpose of zinc plating iron used for construction?

  • To improve electrical conductivity
  • To protect from corrosion and rusting (correct)
  • To increase the weight of the iron
  • To make it more malleable

    • In gold plating, what are silver ornaments coated with?

  • Gold (correct)
  • Bronze
  • Platinum
  • Silver

    • What happens when an electric current is passed through a copper sulfate solution?

  • Sulfur reacts with copper
  • Sulfate changes into magnesium
  • Copper turns into zinc
  • Copper sulfate dissociates into copper and sulfate (correct)

    • Which electrode should be attached to the positive terminal of the battery in the process described?

    <p>Thin copper plate</p> Signup and view all the answers

    What is the purpose of using a thick rod of impure copper in the purification process?

    <p>To act as an anode</p> Signup and view all the answers

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