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Learning objective

State that at the cathode, metals or hydrogen are produced, while non-metals (excluding hydrogen) are produced at the anode.

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  • Practise with linked questions.
Cambridge IGCSE ChemistryElectrochemistryCore content

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Quick explanation

State that at the cathode, metals or hydrogen are produced, while non-metals (excluding hydrogen) are produced at the anode

  • This point belongs to Electrolysis, especially Electrolysis outcomes.
  • You need to be able to state that at the cathode, metals or hydrogen are produced, while non-metals (excluding hydrogen) are produced at the anode.
  • The key ideas to know are State.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

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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 3 structured question: Electrolysis

Paper 3Theory (Core)1 marks

Description

Electrolysis of Water

During the electrolysis of water, an electric current is passed through water containing a small amount of acid to facilitate the process. Bubbles of gas are observed at both electrodes.

  1. a

    State the products formed at the cathode during the electrolysis of water.

    Aim for approximately 1 distinct marking point.

    [1]
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