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Cambridge IGCSE Chemistry practice

What is the purpose of sacrificial protection?

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Show answerCorrosion of metals revisionRevise the key idea

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MCQ

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cambridge_mcq

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Topic

Corrosion of metals

Exam-style question

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What is the purpose of sacrificial protection?.

  1. A.To increase the reactivity of metals
  2. B.To prevent corrosion of a less reactive metal
  3. C.To enhance the strength of metals
  4. D.To promote oxidation of metals

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Paper 4 structured question: Corrosion of metals

Paper 4Theory (Extended)1 marks

Description

Sacrificial Protection

Sacrificial protection is a method used to prevent corrosion of metals by using a more reactive metal. This metal will corrode instead of the protected metal.

  1. a

    State the purpose of sacrificial protection.

    Aim for approximately 1 distinct marking point.

    [1]