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      Question

      The process of protecting iron from rusting by coating

      it with zinc is called:
      A Annealing Correct Answer Incorrect Answer
      B Galvanization Correct Answer Incorrect Answer
      C Electrolysis Correct Answer Incorrect Answer
      D Smelting Correct Answer Incorrect Answer

      Solution

      Zinc acts as a sacrificial layer; even if the coating is scratched, the zinc corrodes instead of the iron.

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