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9.3 Common atmospheric pollutants and their sources

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Question 6
F

Figure shows the apparatus a student used to collect and test the gases released when a candle burns.

Figure: Apparatus used to collect and test the gases released when a candle burns

image

a.

The limewater turned milky. Name the gas that caused this change.

[1]
b.

A colourless liquid collected in the test tube in the iced water. Name this liquid and name the element in the candle wax that it came from.

[2]
c.

The student held a cold white tile in the candle flame. A black solid formed on the tile.

Suggest why this black solid formed.

[1]
Markscheme

9.3 Common atmospheric pollutants and their sources Questions

  1. GCSE
  2. /Chemistry
  3. /9.3 Common atmospheric pollutants and their sources

40 exam-style questions on AQA GCSE Chemistry 9.3 Common atmospheric pollutants and their sources, covering 9.3.1 Atmospheric pollutants from fuels and 9.3.2 Properties and effects of atmospheric pollutants. Each one has a worked solution and a mark scheme showing where the marks go.

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