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8.2 Identification of common gases

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Question 14

A technician tests a gas released from a reaction vessel. The gas is bubbled through fresh limewater.

StageObservation
Before the gas is bubbled throughClear, colourless solution
After the gas is bubbled through several timesCloudy white mixture
a.

Name the gas.

[1]
b.

Explain why the mixture becomes cloudy white.

[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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