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CAIE IGCSE Chemistry Alloy Uses from Physical Properties

Practise matching alloy uses to physical properties, including stainless steel for hard rust-resistant items and carbon steel for strength or hardness.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • justify stainless steel for cutlery or chemical equipment through hardness and corrosion resistance
  • use carbon percentage data to compare steel strength, hardness, brittleness and malleability
  • select an alloy for a stated use from its property table rather than from composition alone

9.3.3—Uses of alloys in terms of their question 1

[Maximum number: 1]

Which statement about metals and their uses is correct?

A

Aluminium is used in the manufacture of aircraft because it has a high density.

B

Copper is used to make cooking utensils because it is a poor conductor of heat.

C

Mild steel is used to make car bodies because it is brittle and breaks easily.

D

Stainless steel is used to make cutlery because it is resistant to corrosion.

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