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Learning objective

Define oxidation in terms of losing electrons and an increase in oxidation number.

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Exam focus

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

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Quick explanation

Define oxidation in terms of losing electrons and an increase in oxidation number

  • This point belongs to Redox, especially Redox outcomes.
  • You need to be able to define oxidation in terms of losing electrons and an increase in oxidation number.
  • The key ideas to know are Define and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DefineExplain

Why it matters

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

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Paper 4 structured question: Redox

Paper 4Theory (Extended)1 marks

Description

Oxidation Process

In a chemical reaction, a substance loses electrons and its oxidation number increases. This process is known as oxidation.

  1. a

    State the definition of oxidation.

    Aim for approximately 1 distinct marking point.

    [1]
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