A mobile catering stall uses a liquid fuel burner to heat water. The fuel is mainly hydrocarbons and contains sulfur as an impurity.
The burner has air holes. When the air holes are open, the fuel burns completely. When the air holes are partly blocked, less air reaches the flame and black soot forms.
Name the gas from the air that reacts with the fuel during combustion.
Name the type of combustion that occurs when the air holes are partly blocked.
Name the element that makes up the soot.
Sulfur dioxide is released into the atmosphere.
Name one environmental effect caused by sulfur dioxide.
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.