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Discuss the role of zinc in galvanizing as a barrier method and its function in sacrificial protection.

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Cambridge IGCSE ChemistryMetalsSupplement content

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Discuss the role of zinc in galvanizing as a barrier method and its function in sacrificial protection

  • This point belongs to Corrosion of metals, especially Corrosion of metals outcomes.
  • You need to be able to discuss the role of zinc in galvanizing as a barrier method and its function in sacrificial protection.
  • The key ideas to know are Describe.
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Key concepts

Describe

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

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Paper 4 structured question: Corrosion of metals

Paper 4Theory (Extended)1 marks

Description

Zinc in Galvanizing

Zinc serves both as a barrier and sacrificial protection for metals.

  1. a

    State the two main roles of zinc in galvanizing.

    Aim for approximately 1 distinct marking point.

    [1]
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