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8.2 Identification of common gases

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Question 28

A technician tests two gas samples by holding damp blue litmus paper in each. The observations are shown in the table.

Gas sampleObservation
XThe paper turns red, then white.
YThe paper turns red and stays red.

Explain which gas sample can be identified as chlorine using these results.

[2]
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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