Advertisements
Advertisements
Question
Classify the following as chemical or physical change:
Dissolving common salt in water.
Options
Chemical change
Physical change
Advertisements
Solution
Physical change
Explanation:
The dissolution of common salt in water is a physical change because salt is easily retrieved by evaporating the water.
APPEARS IN
RELATED QUESTIONS
Tick (√) the correct alternative from the choice given for the following statement.
A substance which can not sublime is
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Write true or false
Deforestation is a man-made change.
Classify the following as physical or chemical change :
Growth of a plant
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
Is a change of state of matter – a physical or a chemical change. Give reasons.
Match the following
| Sr. No. | A | B | C |
| 1. | Melting | Change of state from liquid to solid | Ticking of clock |
| 2. | Condensation | Change of state from liquid to gas | Formation of ice cube |
| 3. | Evaporation | Change of state from solid to liquid | Collecting flowers |
| 4. | Freezing | Change of state from gas to liquid | Ice cube to water |
| 5. | Periodic change | Occurs at irregular time intervals | Water to steam |
| 6. | Non-periodic change | Occurs at regular time intervals | Steam to water drops |
Analogy:
Melting of ice: Physical change.
Popping of popcorn: ______.
Which of the following is not a physical change?
Adding sugar to milk is a physical change.
