Question

explain how painting of an iron gate prints it from rusting

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Answer 1

Answer:

Rust is a brown powdery substance which forms on iron articles when it comes in contact of water+oxygen .Rusting can be prevented by ::

lGalvanisation

oiling

painting

Answer 2

Answer:

For rusting, iron must be in contact with both air and moisture: When iron gate is painted, the layer of paint prevents the contact of iron with air and moisture and so there is no rusting.