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4.3 Electrolysis

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Question 33
H

Why are the reactions at the electrodes during electrolysis described as redox reactions?

[1]
A

Oxygen is gained at the anode and lost at the cathode

B

Ions are gained at the anode and lost at the cathode

C

Electrons are lost at the anode and gained at the cathode

D

Electrons are lost at the cathode and gained at the anode

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4.3 Electrolysis Questions

  1. GCSE
  2. /Chemistry
  3. /4.3 Electrolysis

76 exam-style questions on AQA GCSE Chemistry 4.3 Electrolysis, covering 4.3.1a The process of electrolysis, 4.3.1b Half equations in electrolysis, 4.3.2 Electrolysis of molten ionic compounds, 4.3.3 Using electrolysis to extract metals, 4.3.4 Electrolysis of aqueous solutions, and 4.3.5 Representation of reactions at electrodes as half equations. Each one has a worked solution and a mark scheme showing where the marks go.

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