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9.3 Common atmospheric pollutants and their sources

9.3 Common atmospheric pollutants and their sources

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Question 4

Carbon monoxide is a toxic gas produced by the incomplete combustion of hydrocarbons.

a.

Butane (C4H10\text{C}_4\text{H}_{10}C4​H10​) undergoes incomplete combustion in a limited supply of oxygen to form carbon monoxide and water. Balance the equation for this reaction:

2C4H10+9O2→‾CO+10H2O 2\text{C}_4\text{H}_{10} + 9\text{O}_2 \rightarrow \underline{\quad\quad} \text{CO} + 10\text{H}_2\text{O} 2C4​H10​+9O2​→​CO+10H2​O
[2]
b.

Incomplete combustion also produces solid carbon particulates (soot). Complete the sentence:

Particulate matter in the atmosphere reflects solar radiation back into space, which causes global _____________.

[1]
Markscheme

9.3 Common atmospheric pollutants and their sources Questions

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

11 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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