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8.2 Identification of common gases

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Question 24

A student is given a stoppered flask of gas by her teacher. The teacher says that the gas is hydrogen, oxygen, carbon dioxide or chlorine. The student tests two separate samples of the gas. A glowing splint lowered into one sample does not relight. Damp red litmus paper held in the other sample is not bleached.

Which two gases have not been ruled out by these results?

[1]
A

Hydrogen and oxygen

B

Hydrogen and carbon dioxide

C

Carbon dioxide and chlorine

D

Oxygen and chlorine

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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