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4.3 Electrolysis

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Question 21

A student electrolyses aqueous zinc nitrate and potassium iodide using inert electrodes.

Name the product formed at each electrode for each solution.

  1. Zinc nitrate solution: negative electrode; positive electrode
  2. Potassium iodide solution: negative electrode; positive electrode
[4]
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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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