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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Redox

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Redox

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Paper 3Theory (Core)3 marks

Chemical reactions often involve oxidation and reduction.

Description

Redox Reactions

In redox reactions, one substance is oxidized and another is reduced.

  1. a

    Explain the relationship between oxidation and reduction.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Redox

Paper 3Theory (Core)1 marks

Description

Oxidation and Reduction

Oxidation is gaining oxygen, while reduction is losing oxygen.

  1. a

    State the definition of oxidation.

    Aim for approximately 1 distinct marking point.

    [1]