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4.3 Electrolysis

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Question 12

Sodium iodide solution is electrolysed using inert electrodes.

Which ions are discharged, one at each electrode?

[1]
A

Hydrogen ions and hydroxide ions

B

Sodium ions and iodide ions

C

Hydrogen ions and iodide ions

D

Sodium ions and hydroxide ions

Markscheme

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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