Chemistry
Grade-10
Easy
Question
Which of the following is not an example of chemical change?
- Sour milk
- Burning wood
- Breaking a pencil
- Rust
Hint:
A chemical change is a change of materials into another, new materials with different properties, and one or more than one new substance are formed.
The correct answer is: Breaking a pencil
Breaking a pencil is not an example of chemical change.
- Breaking a pencil doesn't cause any composition change, as well as no chemical change, as we only change its physical or external appearance.
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