name two metals which do not corrode easily give an example in each of the following cases to support that (a) part is corrosion of some metal is an advantage
(b) corrosion of metal in serious problem.
Answers
Two metals which does not corrode easily are platinum and gold
a) in copper and aluminium the corrosion make a layer of its oxide on the surface which protects it from further damage
b) corrosion is a serious problem in metal like iron it damage the quality of iron and make it weak
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Two metals which does not corrode easily are platinum and gold
a) in copper and aluminium the corrosion make a layer of its oxide on the surface which protects it from further damage
b) corrosion is a serious problem in metal like iron it damage the quality of iron and make it weak
Gold and platinum. (i) A thin impervious layer of aluminium oxide forms a protective layer which protects the aluminium metals underneath from further damage. (ii) Corrosion of iron is a serious problem. Every year enormous amount of money is spent to replace damaged iron and steel structures.