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Learning objective

Illustrate the charge transfer during electrolysis, covering: (a) electron movement in the external circuit, (b) electron loss or gain at the electrodes, and (c) ion movement in the electrolyte.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE ChemistryElectrochemistrySupplement content

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Quick explanation

Illustrate the charge transfer during electrolysis, covering: (a) electron movement in the external circuit, (b) electron loss or gain at the electrodes, and (c) ion movement in the electrolyte

  • This point belongs to Electrolysis, especially Electrolysis outcomes.
  • You need to be able to illustrate the charge transfer during electrolysis, covering: (a) electron movement in the external circuit, (b) electron loss or gain at the electrodes, and (c) ion movement in the electrolyte.
  • The key ideas to know are Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Describe

Why it matters

This objective helps connect Electrolysis outcomes to exam-style questions, flashcards, and revision notes for Electrolysis.

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Paper 4 structured question: Electrolysis

Paper 4Theory (Extended)1 marks

Description

Electrolysis Process

During the electrolysis of a salt solution, ions migrate towards the electrodes. Cations move towards the cathode and anions move towards the anode. Electrons flow through the external circuit from the anode to the cathode.

  1. a

    State the movement of cations during electrolysis.

    Aim for approximately 1 distinct marking point.

    [1]
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