Chemistry, asked by vaibhavbhardwaj2004x, 11 months ago

(a) Why is that aluminium which is more reactive than iron does not corrode like iron?
(b) How is corrosion of iron prevented by coating it with a layer of oil?

Answers

Answered by anirudh57
0

Explanation:

because aluminum already coated

Answered by Anonymous
5

Explanation:

a) Although Aluminum is more reactive than iron, yet it doesn't corrode like iron. The reason being that when aluminum reacts with moist air, its surface is coated with a thin impervious layer of aluminum oxide which protects the metal underneath from further damage. In contrast, iron when exposes to moist air, is covered with a brown flasky substance called rust. Rust slowly falls from the surface exposing fresh surface for rusting . Thus, corrosion of iron is a continuous process which ultimately eats up the whole iron object.

b) Corrosion of iron is preventing by coating it with a layer of oil. The reason being that the layer of oil doesn't allow air and water to reach the surface of iron .

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