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प्रश्न
Select the chemical changes from the following list of changes
Rotting of eggs.
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उत्तर
Rotting of eggs is CHEMICAL change, change in composition takes place, is an irreversible process.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Classify the following changes as physical or chemical:- melting of a solid (wax)
State whether the following is physical or chemical changes.
mixing oil with water —
Give two examples of periodic changes.
Classify the following as a physical or a chemical change.
Boiling of water
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Compare the energy changes involved during a physical and a chemical change.
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 |
What type of change is colouring of a paper?
