GCSE Chemistry – Electrolysis
Learning Objectives
-I can explain why compounds need to be molten or dissolved to conduct
-I can describe the movement of ions during electrolysis
-I can predict the products of electrolysis
-I can describe what happens to aqueous solutions that are electrolysed
-I can describe how to test for chlorine gas, hydrogen gas and oxygen gas
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Question 1 of 30
1. Question
What is the definition of electrolysis?
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Question 2 of 30
2. Question
When can compounds undergo electrolysis?
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Question 3 of 30
3. Question
When can compounds undergo electrolysis?
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Question 4 of 30
4. Question
What is the definition of the electrolyte?
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Question 5 of 30
5. Question
Why are substances only able to undergo electrolysis when molten or dissolved?
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Question 6 of 30
6. Question
Why are molten and dissolved compounds able to conduct electricity?
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Question 7 of 30
7. Question
What is the definition of oxidation?
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Question 8 of 30
8. Question
What is the definition of reduction?
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Question 9 of 30
9. Question
What is the definition of an electrode?
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Question 10 of 30
10. Question
What is the definition of the anode?
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Question 11 of 30
11. Question
What is the definition of the cathode?
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Question 12 of 30
12. Question
What type of substances are electrodes made from?
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Question 13 of 30
13. Question
Which of the following substances could the electrodes be made from?
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Question 14 of 30
14. Question
Which of the following substances could the electrodes be made from?
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Question 15 of 30
15. Question
What process takes place at the anode?
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Question 16 of 30
16. Question
What process takes place at the cathode?
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Question 17 of 30
17. Question
What type of ions are attracted to the anode?
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Question 18 of 30
18. Question
What type of ions are attracted to the cathode?
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Question 19 of 30
19. Question
What happens to the electrons at the anode?
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Question 20 of 30
20. Question
What happens to the electrons at the cathode?
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Question 21 of 30
21. Question
Why do the opposite charged ions go to the electrodes?
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Question 22 of 30
22. Question
If aluminium chloride is undergoing electrolysis, what product will be formed at the anode?
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Question 23 of 30
23. Question
If aluminium chloride is undergoing electrolysis, what product will be formed at the cathode?
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Question 24 of 30
24. Question
If an aqueous solution of copper chloride is undergoing electrolysis, what product is formed at the anode?
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Question 25 of 30
25. Question
If an aqueous solution of copper chloride is undergoing electrolysis, what product is formed at the cathode?
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Question 26 of 30
26. Question
What is also formed during the electrolysis of a dissolved compound, making it harder to predict product outcomes?
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Question 27 of 30
27. Question
How do you test for hydrogen gas?
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Question 28 of 30
28. Question
How do you test for oxygen gas?
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Question 29 of 30
29. Question
How do you test for chlorine gas?
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Question 30 of 30
30. Question
When testing for chlorine gas, what colour does the blue litmus paper turn?
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