Science, asked by khushi78561, 1 year ago

Surface of some metals lost their brightness when kept in air for a long time.Why?

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Answered by ayush969057

because of rusting on this process a thick layer of impurities were stuck on the metal which is made by the reaction of O2 ,H20, fe (iron)but it can easily be removed by rubbing and repolishing the metal

ayush969057: this is the correct ans

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Surface of some metals lost their brightness when kept in air for a long time.Why?​

Answers

Surface of some metals lost their brightness when kept in air for a long time.Why?