In galvanisation, which metal is coated on iron or steel?
Answer and explanation
Correct answer: Zinc
In galvanisation, a thin layer of zinc is coated on iron or steel. This layer prevents air and moisture from reaching the iron, reducing rusting. Zinc is more reactive than iron, so it can oxidise preferentially and provide some protection even if the coating is scratched. Coating iron with copper is not called galvanisation.
Frequently asked questions
What is the correct answer to this question?
Zinc
Why is this the correct answer?
In galvanisation, a thin layer of zinc is coated on iron or steel. This layer prevents air and moisture from reaching the iron, reducing rusting. Zinc is more reactive than iron, so it can oxidise preferentially and provide some protection even if the coating is scratched. Coating iron with copper is not called galvanisation.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
