Chemistry 0620 · IGCSE · Corrosion of metals

Corrosion of metals — practice question

Which of the following statements about rusting is correct?

  • ARust is anhydrous iron(II) oxide.
  • BOxygen is required for iron to rust.
  • CIron covered in grease rusts more quickly.
  • DIron rusts more quickly in the absence of air.

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