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4.2 Electrolytic processes

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Question 13
H

During the electrolysis of molten aluminium oxide, 5.4 kg of aluminium is produced at the cathode.

Relative atomic masses: Al = 27, O = 16

What is the maximum mass of oxygen gas produced at the anode in the same time?

[1]
A

2.4 kg

B

4.8 kg

C

6.4 kg

D

9.6 kg

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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