O Level Chemistry 5070, topic 4.2
Hydrogen–oxygen fuel cells: past paper questions
12 Cambridge O Level Chemistry 5070 questions on Hydrogen–oxygen fuel cells (4.2) from 12 papers, 2023 to 2026. Mostly multiple choice. Open the paper or try a question free.
Practising builds a set from this topic, free with an account. One question opens straight away, with no account.
- Questions
- 12
- Papers
- 12
- Years
- 2023 to 2026
- Total marks
- 35
- Average per question
- 2.9 marks
- Largest question
- 10 marks
By type: Multiple choice 9 · Structured 3
How hard the questions are
- Recall0
- Apply0
- Analyse3
- Not banded9
Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.
Command words
- describeApply3 questions
state the points of a topic / give characteristics and main features
- explainAnalyse3 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- nameRecall2 questions
- constructApply1 question
- predictAnalyse1 question
suggest what may happen based on available information
- stateRecall1 question
express in clear terms
- useApply1 question
- writeRecall1 question
Where the questions come from
By year
- 20263
- 20253
- 20243
- 20233
By session
- May/June7
- Oct/Nov5
By paper
- Paper 19
- Paper 23
Questions on this topic
Showing 12 of 12, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 13May/June 2026, paper 11Multiple choice1 mark
Three statements about hydrogen–oxygen fuel cells are listed. 1 They produce less carbon dioxide than petrol engines. 2 They produce hydrogen and oxygen as the only chemical products.
- Try this questionQuestion 13Oct/Nov 2025, paper 11Multiple choice1 markHas a diagram
Which row is correct?
- Try this questionQuestion 12Oct/Nov 2024, paper 11Multiple choice1 markHas a diagram
Which row describes one advantage and one disadvantage of using a hydrogen-oxygen fuel cell to power a road vehicle?
- Try this questionQuestion 13Oct/Nov 2023, paper 11Multiple choice1 mark
Three statements about fuel cells are given. 1 A hydrogen-oxygen fuel cell requires a continuous input of fuel and oxygen. 2 In a hydrogen-oxygen fuel cell, hydrogen is burned in oxygen to produce electricity.
- Try this questionQuestion 11May/June 2026, paper 12Multiple choice1 mark
Which statement comparing hydrogen–oxygen fuel cells with gasoline / petrol engines is correct?
- Try this questionQuestion 14May/June 2025, paper 12Multiple choice1 mark
Which statement about a hydrogen–oxygen fuel cell is correct?
- Try this questionQuestion 14Oct/Nov 2024, paper 12Multiple choice1 mark
What is a disadvantage of using a hydrogen-oxygen fuel cell to power a car?
- Try this questionQuestion 6Oct/Nov 2023, paper 22Structured7 marks
Steam reacts with carbon to produce carbon monoxide and hydrogen. The forward reaction is endothermic.
- Try this questionQuestion 3May/June 2026, paper 21Structured10 marksHas a diagram
Hydrogen reacts with oxygen to make water. Figure 3.1 shows the reaction pathway diagram for this reaction. The reaction is exothermic.
- Try this questionQuestion 2May/June 2025, paper 21Structured9 marks
A concentrated aqueous solution of copper(II) bromide is electrolysed using graphite electrodes. Graphite has good electrical conductivity. Explain why graphite has good electrical conductivity.
- Try this questionQuestion 13May/June 2024, paper 12Multiple choice1 markHas a diagram
Which row describes a hydrogen-oxygen fuel cell?
- Try this questionQuestion 13May/June 2023, paper 12Multiple choice1 mark
What is a chemical product of a hydrogen–oxygen fuel cell?