Question detail
What is sulfur dioxide and how is it produced during fuel combustion?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Common atmospheric pollutants and their sources
Question
What is sulfur dioxide and how is it produced during fuel combustion?
Answer
Sulfur dioxide (SO2) is a colorless gas with a pungent smell, produced when sulfur impurities in fuels burn during combustion. It is a significant atmospheric pollutant that can contribute to acid rain.
Explanation
A strong answer should directly address the approved learning objective to explain that sulfur dioxide is produced when sulfur impurities in fuels burn. This question belongs to Atmospheric pollutants from fuels within Common atmospheric pollutants and their sources, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to sulfur dioxide, and keeps the wording specific to AQA GCSE revision.
Common mistake
Misunderstanding Sulfur Dioxide Production
Students often confuse sulfur dioxide production with carbon dioxide production, thinking both are from complete combustion.
Remember that sulfur dioxide is specifically produced from the burning of sulfur impurities in fuels, while carbon dioxide is a product of complete combustion of hydrocarbons.
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