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Which metal is coated on iron during galvanisation to protect it from rusting?

Answer and explanation

Correct answer: Zinc

In galvanisation, iron or steel is coated with zinc. The zinc layer prevents air and moisture from reaching the iron; moreover, because zinc is more reactive than iron, it can oxidise first even if the coating is scratched. Copper is not the metal used for galvanisation.

Related tags

ScienceClass 10Chemical ReactionsGalvanisationRustingZinc

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