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प्रश्न
Classify the following as a physical or a chemical change.
Butter getting rancid
एक शब्द/वाक्यांश उत्तर
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उत्तर
Chemical change
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संबंधित प्रश्न
Write true or false for the statement.
Deforestation is a man-made change
Write short answer.
Give an example of desirable change which can also be undesirable
Name a chemical change which takes place in presence of:
Fill in the blank.
When a candle burns, wax melts. Melting of wax is a ________ change.
Write true or false
Burning of sugar is a temporary change.
True or false
Change of seasons is a non-periodic change.
Give two examples of periodic changes.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
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 |
Cutting a log of wood into pieces is a chemical change.
