Question

Formation of rusting is a chemical reaction . Give reason for your answer ​

Answer 1

Answer:

A change in which one or more new substances are formed is known as chemical change.

Explanation:

For Example, when the iron is exposed to air and moisture, rust formation takes place. ... The colour of the surface of the iron also changes. Hence, rusting of iron is a chemical change.

Answer 2

Answer:

When substances made of iron are exposed to oxygen and moisture (water), rusting takes place. Rusting removes a layer of material from the surface and makes the substance weak. Rusting is a chemical change.