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4.3 Electrolysis

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Question 8

Potassium iodide is dissolved in water to make a solution.

Which ions are present in the solution?

[1]
A

Potassium, iodide, hydrogen and hydroxide ions

B

Potassium and iodide ions only

C

Potassium, iodide, hydrogen and oxide ions

D

Potassium, iodide and hydroxide ions only

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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