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9.3 Common atmospheric pollutants and their sources

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Question 25

A commercial bread oven burns a hydrocarbon fuel. When the air supply to the burner is poor, a dark deposit of soot builds up inside the flue.

Which statement explains how the soot is formed?

[1]
A

Some carbon in the fuel is fully oxidised and forms solid particles.

B

Some hydrogen in the fuel is not oxidised and forms solid particles.

C

Some carbon in the fuel is partly oxidised and forms solid particles.

D

Some carbon in the fuel is not oxidised and forms solid particles.

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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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