Question detail
What forms oxides of nitrogen during combustion in engines?
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 and oxygen
- B. Nitrogen and oxygen
- C. Sulfur and oxygen
- D. Hydrogen and nitrogen
Answer
The correct option is Nitrogen and oxygen. This answer is correct because it matches the approved learning objective to explain that oxides of nitrogen form when nitrogen and oxygen react at high temperatures in engines in the subtopic Atmospheric pollutants from fuels.
Explanation
The correct option is Nitrogen and oxygen. Nitrogen and oxygen is correct because it directly supports the approved learning objective to explain that oxides of nitrogen form when nitrogen and oxygen react at high temperatures in engines. This belongs to the subtopic Atmospheric pollutants from fuels within Common atmospheric pollutants and their sources, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Atmospheric pollutants from fuels.
Common mistake
Misunderstanding Nitrogen Oxides Formation
Students often confuse the formation of oxides of nitrogen with other pollutants, thinking they are produced from fuel impurities rather than from the reaction of nitrogen and oxygen at high temperatures.
Remember that oxides of nitrogen specifically form when nitrogen and oxygen react at high temperatures, such as in engine combustion, and are distinct from pollutants formed from fuel impurities.
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