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9.3 Common atmospheric pollutants and their sources

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Question 13

A diesel railway locomotive has a hot engine. Its exhaust contains oxides of nitrogen, sulfur dioxide, carbon monoxide and soot. Engineers consider changing the engine temperature, the amount of oxygen entering the engine and the sulfur content of the fuel.

Which proposed change is correctly matched to its effect on pollutant formation?

[1]
A

Decrease the engine temperature to reduce the formation of oxides of nitrogen

B

Decrease the sulfur content to reduce the formation of soot

C

Increase the oxygen supply to reduce the formation of sulfur dioxide

D

Decrease the oxygen supply to reduce the formation of carbon monoxide

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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