Chemistry 0620 · IGCSE · Corrosion of metals

Corrosion of metals — practice question

One example of sacrificial protection is the attachment of zinc blocks to the outside of a ship’s steel hull. Which statement explains why zinc is chosen to protect the iron in the steel against rusting?

  • AZinc is more reactive than iron so it loses electrons more easily.
  • BZinc is less reactive than iron so it loses electrons more easily.
  • CZinc is more reactive than iron so it gains electrons more easily.
  • DZinc is less reactive than iron so it gains electrons more easily.

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