Question detail
Which statement best describes the role of air in the Haber process?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The Haber process and the use of NPK fertilisers
Question
- A. Air is used to cool the reactor
- B. Air supplies the oxygen needed for combustion
- C. Air provides the nitrogen that reacts with hydrogen
- D. Air is used as a solvent for the reaction
Answer
The correct option is Air provides the nitrogen that reacts with hydrogen. This answer is correct because it matches the approved learning objective to recall air as a source of nitrogen for the Haber process. (Chemistry only) in the subtopic The Haber process.
Explanation
The correct option is Air provides the nitrogen that reacts with hydrogen. Air provides the nitrogen that reacts with hydrogen is correct because it directly supports the approved learning objective to recall air as a source of nitrogen for the Haber process. (Chemistry only). This belongs to the subtopic The Haber process within The Haber process and the use of NPK fertilisers, 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 The Haber process.
Common mistake
Source of Nitrogen Confusion
Students often confuse air with nitrogen gas, thinking air is purely nitrogen.
Remember that air is a mixture of gases, with nitrogen being the main component but not the only one.
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