The rusting of an iron object is called: - Vidyadip

MCQ

The rusting of an iron object is called:

A
Corrosion and it is a physical as well as a chemical change.
B
Dissolution and it is a physical change.
✓
Corrosion and it is a chemical change.
D
Dissolution and it is a chemical change.

✓

Answer

Correct option: C.

Corrosion and it is a chemical change.

Rusting of iron takes place in the presence of air $\left( O _2\right)$ and water vapour. Action of air and moisture on iron converts it to its oxide. This process is called corrosion and it leads to the formation of a new compound. Therefore, it is a chemical change.

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