Edexcel IGCSE Chemistry 2.19 Metal displacement reactions
Practise rust prevention methods, comparing barrier coatings with galvanising and sacrificial protection using zinc.
- Syllabus
- First assessment 2019
- Course
- Chemistry 4CH1
Exam points
- explain how paint or oil blocks water and oxygen from reaching iron
- name galvanising and link zinc coating to protection of iron
- explain sacrificial protection by zinc oxidising before iron
2.19 Preventing rusting question 1
[Maximum number: 1]
What is the name of the process used to coat iron with zinc?
A
galvanisation
B
oxidation
C
reduction
D
sacrificial protection
A
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