A company must choose between non-rechargeable alkaline batteries and rechargeable batteries for a smoke alarm that is checked once a year. Which statement is a reason for choosing the non-rechargeable alkaline battery?
It can be used again once an external current has been supplied to it
It contains a smaller mass of metals that are harmful to the environment
It produces a higher voltage from each cell than a rechargeable cell does
It does not have to be taken out of the alarm to be recharged each year
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.