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8.2 Identification of common gases

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Question 32

A laboratory technician is checking an instruction card for identifying chlorine gas.

The card states:

“Hold dry blue litmus paper in the gas. Chlorine is present if the paper turns red and stays red.”

Describe how the two errors on the instruction card should be corrected.

[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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