Question detail
What is the primary fuel used in hydrogen fuel cells?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Chemical cells and fuel cells (chemistry only)
Question
- A. Oxygen
- B. Hydrogen
- C. Carbon Dioxide
- D. Methane
Answer
Hydrogen
Explanation
Hydrogen is the fuel that is oxidised in hydrogen fuel cells to produce electricity.
Common mistake
Misunderstanding fuel supply in fuel cells
Students often think a fuel cell needs a continuous external supply of oxygen and water, just like a battery needs a continuous supply of reactants
Explain that a fuel cell requires only the fuel (e.g. hydrogen) and an oxidiser (usually oxygen from air); water is a product, not a required input, and the cell can operate as long as fuel and oxygen are available
Related flashcards
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Related practice questions
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