Chemistry
Grade-9
Easy
Question
Which of the statements on physical changes are correct?
- A physical change cannot be reversed
- A physical change is a change in state
- A physical change is a change in chemical composition
- A physical change is where new substances are formed
Hint:
Changes in state of matter is physical change.
The correct answer is: A physical change is a change in state
A physical change is a change in state of matter in which some properties of the material change, but the identity of the matter does not. Physical changes can further be classified as reversible or irreversible.
Chemical changes occur when a substance combines with another to form a new substance with different chemical composition. Chemical changes cannot reversed
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