Hydrogen–oxygen fuel cells

The following statements relate to hydrogen and its use as a fuel. Which statements are correct?

May/June 2021

In a hydrogen-oxygen fuel cell, what chemical product is formed?

May/June 2023

Which row provides the description of a hydrogen-oxygen fuel cell?

May/June 2024

Which of the following statements about a hydrogen-oxygen fuel cell is correct?

May/June 2025

Students suggested four cells for generating electricity in a school laboratory. Which cell would give the greatest voltage while still being safe to use?

Oct/Nov 2022

Three statements about fuel cells are shown. Which of these statements are correct?

Oct/Nov 2023

Which row gives one benefit and one drawback of using a hydrogen-oxygen fuel cell to power a road vehicle?

Oct/Nov 2024

What is one drawback of using a hydrogen-oxygen fuel cell to power a car?

Oct/Nov 2024