Essential Chemistry for IGCSE - Air And Water (Section 7 - No. 17)
What does the term 'sacrificial protection' mean in the context of preventing rust?
The use of a coating to prevent oxygen from reaching the metal.
The use of a more reactive metal to corrode instead of the iron.
The application of oil to protect the metal's surface.
The use of a less reactive metal that does not corrode.
Explanation
A more reactive metal corrodes instead of the iron.
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