Lots of changes take place in substances and some changes are physical and some are chemical. A change in a substance in which the chemical properties of the substance remain the same but the physical properties of the substance change, such change in the substance is called a physical change. When a substance combines with another substance to form a new substance or when a substance is decomposed into two or more substances, its properties and characteristics change, it is called a chemical change. So take this quiz and know more about a physical and chemical change of substance.
1. Which of the following is a physical change?
A. Rusting of iron
B. Combustion of magnesium ribbon
C. Burning of candle
D. Melting of wax
2. Which of the following is a chemical change?
A. Melting of wax
B. Melting of ice
C. Water freezes
D. Bread is baked
3. Physical changes are ...
A. Reversible
B. Irreversible
C. Permanent
D. Temporary
4. Which of the following represents chemical change?
A. Combustion of fule
B. Rust in iron
C. Both of these
D. None of these
5. Which of the following is not a chemical change?
A. Photosynthesis
B. Burning of wood
C. Melting of ice
D. Burning of leaves
6. Which acid are found in vinegar?
A. Lactic acid
B. Citric acid
C. Methanoic acid
D. Acetic acid
7. Which of the following change can be easily be reversed?
A. Chemical Change
B. Physical Change
C. Both a physical and chemical change
D. Neither a physical or chemical change
8. What remains the same during chemical and physical changes?
A. Density
B. Shape
C. Mass
D. Arrangement of particle
9. Which of the following is an example of a physical change?
A. Paper burning
B. Water boiling
C. Metal rusting
D. Silver tarnishing
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