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10.3 Using materials

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Question 4

An ancient iron key is kept in a sealed museum case. The case contains nitrogen and water vapour but no oxygen.

Which change would allow the key to rust?

[1]
A

Adding carbon dioxide

B

Removing some nitrogen

C

Adding more water vapour

D

Adding oxygen

Markscheme

10.3 Using materials Questions

  1. GCSE
  2. /Chemistry
  3. /10.3 Using materials

118 exam-style questions on AQA GCSE Chemistry 10.3 Using materials, covering 10.3.1 Corrosion and its prevention, 10.3.2 Alloys as useful materials, and 10.3.3 Ceramics, polymers and composites. Each one has a worked solution and a mark scheme showing where the marks go.

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