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10.3 Using materials

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Question 20

Steel carving tools kept in a damp workshop are protected with an oil film. A zinc block is attached to a steel water tank that is exposed to rain.

Which method still prevents rusting at places where bare steel is in contact with air and water?

[1]
A

The zinc block only

B

Both the oil film and the zinc block

C

Neither the oil film nor the zinc block

D

The oil film only

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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