Chemistry 0620 · IGCSE · Corrosion of metals

Corrosion of metals — practice question

What methods can be used to prevent iron from rusting?

  • Acoating with zinc ✓, painting ✓, washing with salt water ✓
  • Bcoating with zinc ✗, painting ✓, washing with salt water ✓
  • Ccoating with zinc ✓, painting ✓, washing with salt water ✗
  • Dcoating with zinc ✓, painting ✗, washing with salt water ✗

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