Which of the following is not a chemical change?
Answer & explanation
Correct answer: option 4
The correct answer is option 4. Freezing of water.
During a chemical one substance reacts with another to undergo a change in chemical composition.
Chemical change brings change in the chemical properties of matter, and we get new substances.
A chemical change is also called a chemical reaction.
Example: Rusting of iron, Cooking of food, Growth of a plant, Digestion of food etc.
But freezing of water is a physical change in which physical state of water changes from liquid to solid.