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Corrosion of metals: CAIE IGCSE Chemistry questions

Every CAIE IGCSE Chemistry exam question on 9.5 Corrosion of metals, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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407 questions

  1. Q31

    June 2024 · Paper 2

    1 mark9.5 Corrosion of metals
    The whole paper ↗
    June 2024 Paper 2, question 31: Iron rusts in the presence of oxygen and water. Which statements about the rusting of iron are correct? 1 Anhydrous iron(II) oxide is produced when iron rusts.

  2. Q7(b)(i)

    June 2024 · Paper 3

    2 marks9.5 Corrosion of metals
    The whole paper ↗
    June 2024 Paper 3, question 7(b)(i): State the conditions needed for iron to rust. [2]

  3. Q7(b)(iii)

    June 2024 · Paper 3

    1 mark9.5 Corrosion of metals
    The whole paper ↗
    June 2024 Paper 3, question 7(b)(iii): Complete this sentence about methods of preventing rusting. Rusting can be prevented by painting or [1]

  4. Q6(c)(i)

    June 2024 · Paper 4

    1 mark9.5 Corrosion of metals
    The whole paper ↗
    June 2024 Paper 4, question 6(c)(i): Name the process used to coat iron with zinc as a method of rust prevention. [1]

  5. Q6(c)(ii)

    June 2024 · Paper 4

    2 marks9.5 Corrosion of metals
    The whole paper ↗
    June 2024 Paper 4, question 6(c)(ii): When the zinc coating is scratched, the iron underneath does not rust. Explain why the iron underneath the zinc does not rust. [2]

  6. Q27

    Specimen · Paper 1

    1 mark9.5 Corrosion of metals
    The whole paper ↗
    Specimen Paper 1, question 27: The diagrams show experiments involving the rusting of iron. test-tube P test-tube Q test-tube R oil iron nails water water boiled to anhydrous remove the air c

  7. Q29

    Specimen · Paper 2

    1 mark9.5 Corrosion of metals
    The whole paper ↗
    Specimen Paper 2, question 29: An experiment to investigate the effect of painting iron is shown. X Y pure iron painted iron air water The experiment is left for seven days. What happens to t
All 7 questions on Corrosion of metals, as a list
  1. June 2024, Paper 2, Q31 (1 mark): Iron rusts in the presence of oxygen and water. Which statements about the rusting of iron are correct? 1 Anhydrous iron(II) oxide is produced when iron rusts.
  2. June 2024, Paper 3, Q7(b)(i) (2 marks): State the conditions needed for iron to rust. [2]
  3. June 2024, Paper 3, Q7(b)(iii) (1 mark): Complete this sentence about methods of preventing rusting. Rusting can be prevented by painting or [1]
  4. June 2024, Paper 4, Q6(c)(i) (1 mark): Name the process used to coat iron with zinc as a method of rust prevention. [1]
  5. June 2024, Paper 4, Q6(c)(ii) (2 marks): When the zinc coating is scratched, the iron underneath does not rust. Explain why the iron underneath the zinc does not rust. [2]
  6. Specimen, Paper 1, Q27 (1 mark): The diagrams show experiments involving the rusting of iron. test-tube P test-tube Q test-tube R oil iron nails water water boiled to anhydrous remove the air c
  7. Specimen, Paper 2, Q29 (1 mark): An experiment to investigate the effect of painting iron is shown. X Y pure iron painted iron air water The experiment is left for seven days. What happens to t

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