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4.3 Electrolysis

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Question 19
F

What forms at the negative electrode when molten sodium chloride and sodium chloride solution are each electrolysed?

[1]
A

Sodium from both the molten salt and the solution

B

Hydrogen from both the molten salt and the solution

C

Hydrogen from the molten salt and sodium from the solution

D

Sodium from the molten salt and hydrogen from the solution

Markscheme

4.3 Electrolysis Questions

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

40 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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