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Question

During corrosion, Iron reacts with which of the following substance?

A
Oxygen
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B
Moisture
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C
Nitrogen
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D
Both (a) and (b)
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Solution

The correct option is D Both (a) and (b)
Iron reacts with oxygen and moisture to form iron oxide or rust. During this reaction, a layer of a rust is formed on the iron. Therefore it is a chemical change. No matter what we do, the rust damages the iron object to such an extent that we cannot get the iron object in its original shape and size.

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