AQA GCSE · Chemistry 8462

Chemical cells and fuel cells (chemistry only): Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Chemical cells and fuel cells (chemistry only).

10 questions22 marksFree, no account

Question 1

1 mark

What is the only waste product produced by a hydrogen fuel cell during its operation?

Question 2

1 mark

A student investigates the voltage of a simple chemical cell made by connecting two different metals in an electrolyte. Which pair of metals would produce the highest voltage?

Question 3

1 mark

At the cathode of a hydrogen fuel cell, oxygen reacts with hydrogen ions to produce water. Which of the following represents the correct balanced half equation for this reaction (HT only)?

Question 4

1 mark

A student connects two different metals to an electrolyte to create a simple chemical cell. Which of the following defines a battery in this context?

Question 5

1 mark

Hydrogen fuel cells are increasingly used in vehicles. What is the overall balanced equation for the reaction in a hydrogen fuel cell?

Question 6

2 marks

Explain why non-rechargeable batteries, such as alkaline batteries, eventually stop producing a potential difference.

Write your answer out first, then check it against the worked solution.

Question 7

3 marks

A simple chemical cell can be constructed by connecting two different metals in contact with an electrolyte.
Explain why a cell containing magnesium and copper electrodes produces a higher voltage than a cell containing zinc and copper electrodes.

Write your answer out first, then check it against the worked solution.

Question 8

5 marks

A battery is constructed by connecting six identical cells in series. If each individual cell produces \(1.5\text{V}\), calculate the total potential difference of the battery and explain why cells are connected in this way.

Write your answer out first, then check it against the worked solution.

Question 9

3 marks

A student investigated the factors that affect the voltage produced by a simple chemical cell.

a) State two components, other than the connecting wires and a voltmeter, that are required to construct a simple chemical cell. (2 points)
b) The student found that the voltage of the cell changes depending on the materials used. Suggest one way the student could increase the voltage produced by the cell. (1 point)

Write your answer out first, then check it against the worked solution.

Question 10

4 marks

Batteries are commonly used to power portable electronic devices. Some batteries are non-rechargeable, while others can be recharged.

a) Explain why non-rechargeable batteries, such as alkaline batteries, stop producing a voltage after a period of use. (2 points)
b) Rechargeable batteries can be used many times. Explain how the chemical reactions in a rechargeable battery are reversed so it can be used again. (2 points)

Write your answer out first, then check it against the worked solution.

* The content provided by thinka is generated by AI and may not always be accurate or up-to-date. Please use it as a supplementary resource and verify with official materials.

You've seen the model answer. Now get yours marked.

This page can show you how a good answer looks. It cannot tell you what your answer was missing. thinka marks your written work against the real mark scheme in about 15 seconds.

Get My Answers Marked Back to the notes

Want more questions like these? Get a fresh set on this topic, marked as you go.