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10.3 Using materials

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Question 1
F

A student investigated the conditions needed for iron to rust. The student set up three boiling tubes, each containing one clean iron nail. The tubes were left for two weeks.

Figure: The three boiling tubes set up by the student to investigate the conditions needed for rusting

image

a.

In which tube, A, B or C, had the nail rusted after two weeks?

[1]
b.

The water in tube B was boiled before it was used, and oil was poured on top of it.

Explain why the nail in tube B did not rust.

[2]
c.

Give the reason for putting anhydrous calcium chloride in tube C.

[1]
d.

Give the conclusion the student can make from the three results.

[2]
Markscheme

10.3 Using materials Questions

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

40 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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