CAIE IGCSE Chemistry 9.5.4 Use of Zinc in Galvanising As an Questions

Work through real CAIE IGCSE Chemistry questions to explain galvanising and why zinc continues protecting steel when scratched.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • define galvanising as coating iron or steel with zinc
  • explain sacrificial protection when a zinc coating is damaged
  • distinguish galvanising from painting, oiling and copper plating
  • identify zinc as the metal used for galvanising and sacrificial anodes

CAIE IGCSE Chemistry 9.5.4 Use of Zinc in Galvanising As an Questions question 1

[Maximum number: 1]

This question is about metals.

Zinc is used to coat iron to prevent rusting.

Name the process used to coat iron with zinc as a method of rust prevention.

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