Question detail
In Atmospheric pollutants from fuels, which option helps you use data or evidence carefully: Describe carbon monoxide as a toxic gas produced by incomplete combustion?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Common atmospheric pollutants and their sources
Question
- A. Carbon monoxide
- B. A related atmosphere statement, but it misses the evidence angle required here.
- C. A misconception that belongs to a neighbouring Chemistry of the atmosphere objective.
- D. A vague claim that does not connect Atmospheric pollutants from fuels to the specification point.
Answer
The correct option is Carbon monoxide. For this evidence question, that option is correct because it matches Describe carbon monoxide as a toxic gas produced by incomplete combustion in Atmospheric pollutants from fuels.
Explanation
Carbon monoxide is the correct answer for this AQA GCSE Chemistry atmosphere question. Separate a supported conclusion from a claim that goes beyond the evidence. The learning objective is: Describe carbon monoxide as a toxic gas produced by incomplete combustion. In Common atmospheric pollutants and their sources, this means the explanation must use the subtopic Atmospheric pollutants from fuels and avoid drifting into a different gas, pollutant, climate, or early-atmosphere idea. Checkpoint 12: this page uses the evidence angle so students can practise one distinct reasoning route before moving to the next question.
Common mistake
Misunderstanding Carbon Monoxide Production
Students often confuse carbon monoxide production with complete combustion processes, thinking it is produced in all combustion reactions.
Emphasize that carbon monoxide is specifically produced by incomplete combustion, where there is insufficient oxygen for complete oxidation of the fuel.
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