Question detail

What is sacrificial protection in terms of corrosion prevention?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Using materials

Question

A. Using a more reactive metal to corrode instead of iron
B. Applying a protective paint layer on iron
C. Heating iron to prevent rust formation
D. Mixing iron with non-reactive metals

Answer

Using a more reactive metal to corrode instead of iron

Explanation

Sacrificial protection involves using a more reactive metal that will corrode in place of iron, thus protecting the iron from rusting.

Common mistake

Misunderstanding Corrosion

Students often define corrosion only as rusting, failing to recognize it as a broader process affecting various materials.

Emphasize that corrosion is the destruction of materials by chemical reactions with substances in the environment, not limited to just iron or rusting.

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