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CAIE IGCSE Chemistry Alloy Uses from Physical Properties

CAIE IGCSE Chemistry Alloy Uses from Physical Properties
Cambridge IGCSE Chemistry 0620 syllabus for exams in 2026, 2027 and 20282026–2028

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

How this is tested

  • 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

Question 27

[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.