what is corrosion ? explain with example .
Answers
CORROSION :
The eating up of a metal by the action of a moisture or chemical such as an acid on the earth surface is called corrosion
☞corrosion of iron is a continuous process which ultimately eat up the whole iron object
☞corrosion of iron is called a Rusting
Rusting of iron
when when an iron object is left in a damp air or water for a considerable time it gets covered with are Red Brown flaky substance called rust. This is called rusting of iron
Condition Necessary For Rusting Of Iron
(1)presence of air
(2)presence of water
PREVENTION OF RUSTING
(1)Rusting of iron can be prevented by painting
(2) Rusting can be prevented by applying grease oil.
(3) rusting of iron can be prevented by galvanisation.
(4) Rusting of iron can be prevented by tin plating and chromium plating
(5) Rusting of iron can be prevented by alloying it to make stainless steel
+ refer to the attachment
Corrosion definition:-
Corrosion is when a refined metal is naturally converted to a more stable form such as its oxide, hydroxide or sulphide state this leads to deterioration of the material.
Rusting of iron and steel is perhaps the most common example of metallic corrosion. There are many well-known examples such as the rusting of exhaust systems and bodies of cars, water pipes and various types of structural steel-work. There are other examples of corrosion in everyday life.
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