QUESTION:
Choose the correct option to fill in the blank.
When a metal item gets rusty, it undergoes a ——–.
A) Physical Change
B) Chemical Change
The correct ANSWER is ⇒ B) Chemical Change
Rusting occurs as a result of the chemical reaction of substances with oxygen in water or humid environments. Rusting is a chemical change because there is no possibility of a rusted substance going back to its original state. As a result of rusting, some changes are observed both in the external appearance of the materials and in themselves, which indicates a chemical change.
Read More about Change in Matter.Â