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3.4 Electrolysis

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Question 13

A technician electrolyses aqueous sodium iodide using inert electrodes.

Which ions are discharged during this electrolysis?

[1]
A

Hydrogen ions at the cathode and iodide ions at the anode

B

Sodium ions at the cathode and iodide ions at the anode

C

Hydrogen ions at the cathode and hydroxide ions at the anode

D

Sodium ions at the cathode and hydroxide ions at the anode

Markscheme

3.4 Electrolysis Questions

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

98 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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