A bus company is choosing between hydrogen fuel cells and rechargeable batteries to power its buses. Which statement gives a disadvantage of hydrogen fuel cells, together with a correct reason for it?
Hydrogen is expensive to store, because it must be kept at a low pressure
Hydrogen is expensive to store, because it must be kept at a high pressure
Hydrogen is expensive to make, because electrolysis of water gives out heat
Hydrogen is expensive to move, because it must be carried as a solid fuel
40 exam-style questions on AQA GCSE Chemistry 5.2 Chemical cells and fuel cells, covering 5.2.1 Cells and batteries, 5.2.2a Fuel cells, and 5.2.2b Half equations for hydrogen fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.