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3.4 Electrolysis

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Question 11
F

A substance is electrolysed using inert electrodes.

The gas made at the cathode burns with a squeaky pop. The gas made at the anode bleaches damp blue litmus paper.

Which substance is electrolysed?

[1]
A

Copper(II) chloride solution

B

Molten potassium chloride

C

Potassium chloride solution

D

Sodium sulfate solution

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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