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8.2 Identification of common gases

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Question 12
F

A student uses limewater that has been left open to the air in the laboratory for several weeks. The limewater is already slightly cloudy. Why is this limewater not suitable for the test?

[1]
A

The limewater has become too concentrated to work.

B

A change to milky could not be clearly seen.

C

The limewater has turned into a strong acid.

D

The limewater is now far too cold for the test.

Markscheme

8.2 Identification of common gases Questions

  1. GCSE
  2. /Chemistry
  3. /8.2 Identification of common gases

40 exam-style questions on AQA GCSE Chemistry 8.2 Identification of common gases, covering 8.2.1 Test for hydrogen, 8.2.2 Test for oxygen, 8.2.3 Test for carbon dioxide, and 8.2.4 Test for chlorine. Each one has a worked solution and a mark scheme showing where the marks go.

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