plumiElectrolysis: CAIE IGCSE Chemistry questions
Every CAIE IGCSE Chemistry exam question on 4.1 Electrolysis, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Calculations
Q3(b)(ii)
The whole paper ↗![June 2024 Paper 3, question 3(b)(ii): The electrolyte contains molten aluminium oxide. State the product formed at each electrode. positive electrode negative electrode [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062031-jun24-03-bii-qp.webp)
Q3(c)(i)
The whole paper ↗![June 2024 Paper 4, question 3(c)(i): State what is meant by the term electrolysis. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062041-jun24-03-ci-qp.webp)
Q3(c)(ii)
The whole paper ↗![June 2024 Paper 4, question 3(c)(ii): Write an ionic half-equation for the production of hydrogen at the cathode. [2] [Total: 14]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062041-jun24-03-cii-qp.webp)
Q5(e)
The whole paper ↗![Specimen Paper 3, question 5(e): Molten potassium bromide can be electrolysed. Predict the products of this electrolysis at: the anode the cathode. [2] [Total: 10]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062003-spec-05-e-qp.webp)
Q3(c)(iii)
The whole paper ↗
All 11 questions on Electrolysis, as a list
- June 2024, Paper 1, Q10 (1 mark): Dilute sulfuric acid and lead(II) bromide are electrolysed separately. Which statements are correct? Colourless gases are produced when dilute sulfuric acid is
- June 2024, Paper 2, Q13 (1 mark): A metal object is electroplated with copper. 13 One electrode is the metal object and the other electrode is copper. The electrolyte is aqueous copper(II) sulfa
- June 2024, Paper 2, Q14 (1 mark): Which statement about electrolysis is correct? A Chemical energy is converted to electrical energy. B Electrons flow through the electrolyte. C Ionic compounds
- June 2024, Paper 3, Q3(b)(ii) (2 marks): The electrolyte contains molten aluminium oxide. State the product formed at each electrode. positive electrode negative electrode [2]
- June 2024, Paper 4, Q3(c)(i) (2 marks): State what is meant by the term electrolysis. [2]
- June 2024, Paper 4, Q3(c)(ii) (2 marks): Write an ionic half-equation for the production of hydrogen at the cathode. [2] [Total: 14]
- Specimen, Paper 1, Q8 (1 mark): When molten lead(II) bromide is electrolysed using platinum electrodes, what is observed at each electrode? negative electrode positive electrode A bubbles of a
- Specimen, Paper 1, Q9 (1 mark): Aqueous nickel(II) sulfate is used as the electrolyte to electroplate a piece of steel with nickel. Which materials are used as the negative electrode and posit
- Specimen, Paper 2, Q10 (1 mark): The diagram shows a circuit used to electrolyse aqueous copper(II) sulfate. power supply + – 3 4 anode cathode 1 aqueous 2 copper(II) sulfate Which arrows indic
- Specimen, Paper 3, Q5(e) (2 marks): Molten potassium bromide can be electrolysed. Predict the products of this electrolysis at: the anode the cathode. [2] [Total: 10]
- Specimen, Paper 4, Q3(c)(iii) (1 mark): A displacement reaction is one method for obtaining copper metal from aqueous copper(II) sulfate. Identify another method for obtaining copper metal from aqueou
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