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Construct ionic half-equations for the reactions occurring at the anode (indicating oxidation) and at the cathode (indicating reduction).

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Cambridge IGCSE ChemistryElectrochemistrySupplement content

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Quick explanation

Construct ionic half-equations for the reactions occurring at the anode (indicating oxidation) and at the cathode (indicating reduction)

  • This point belongs to Electrolysis, especially Electrolysis outcomes.
  • You need to be able to construct ionic half-equations for the reactions occurring at the anode (indicating oxidation) and at the cathode (indicating reduction).
  • The key ideas to know are Construct.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

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Construct

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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 of Sodium Chloride

During the electrolysis of sodium chloride solution, chlorine gas is produced at the anode and hydrogen gas at the cathode. Write the ionic half-equations for the reactions occurring at both electrodes.

  1. a

    State the ionic half-equation for the reaction at the anode.

    Aim for approximately 1 distinct marking point.

    [1]
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