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a. Define corrosion. b. What is corrosi...

a. Define corrosion.
b. What is corrosion of iron called?
c.Why corrosion of ironis a serious problem?
d. How we can prevent corrosion of iron?
e. How will you recognise the corrosion of silver?
OR
Why does silver turn blackish when exposed to air?

Text Solution

Verified by Experts

a. It is a process in which metals react with substances present in air to form surface compounds.
b. Rusting.
c. It makes themetal weak and brittle, which is a serious problem.
d. Oiling, painting, greasing, galvanisation, alloying casn prevent corrosion.
e. Black layer of silver sulphide is formed `(Ag_(2)S)`
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