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3.4 Electrolysis

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Question 20
H

Molten zinc bromide is electrolysed.

Which statement is correct?

[1]
A

Zinc ions are oxidised at the cathode because they gain electrons

B

Bromide ions are reduced at the anode because they lose electrons

C

Bromide ions are oxidised at the cathode because they lose electrons

D

Zinc ions are reduced at the cathode because they gain electrons

Markscheme

3.4 Electrolysis Questions

  1. GCSE
  2. /Chemistry
  3. /3.4 Electrolysis

52 exam-style questions on OCR GCSE Chemistry 3.4 Electrolysis, covering 3.4.1 Products formed at the electrodes in electrolysis and 3.4.2 The technique of electrolysis. Each one has a worked solution and a mark scheme showing where the marks go.

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