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4.2 Electrolytic processes

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Question 11
F

Four substances are electrolysed using inert electrodes.

Substance 1: molten potassium bromide

Substance 2: potassium bromide solution

Substance 3: copper sulfate solution

Substance 4: dilute sulfuric acid

In which of these is a metal produced at the cathode?

[1]
A

1 only

B

3 only

C

1 and 3 only

D

1, 2 and 3 only

Markscheme

4.2 Electrolytic processes Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Electrolytic processes

52 exam-style questions on Edexcel GCSE Chemistry 4.2 Electrolytic processes, covering 4.2.1 Electrolytes and the process of electrolysis, 4.2.2 Products of electrolysis using inert electrodes, 4.2.3 Half equations, oxidation and reduction in electrolysis, and 4.2.4 Electrolysis of copper sulfate and purifying copper. Each one has a worked solution and a mark scheme showing where the marks go.

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