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8.2 Identification of common gases

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Question 16

Three coded gas samples are each tested using a new piece of damp blue litmus paper.

Gas sampleObservation
KThe paper remains blue.
LThe paper turns red and remains red.
MThe paper turns red and then turns white.

Which gas sample contains chlorine? Explain your answer, using the observations.

[3]
Markscheme

8.2 Identification of common gases Questions

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

89 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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