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9.3 Common atmospheric pollutants and their sources

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Question 26

A crop-drying burner uses a fuel containing carbon, hydrogen and a sulfur impurity. Sulfur dioxide is detected in the exhaust gases.

Which change would prevent sulfur dioxide being produced while the burner is in use?

[1]
A

Reduce the oxygen supply so that combustion is incomplete

B

Replace the fuel with one containing carbon and hydrogen but no sulfur

C

Increase the oxygen supply so that combustion is complete

D

Keep the same fuel but lower the operating temperature

Markscheme

9.3 Common atmospheric pollutants and their sources Questions

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

102 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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