Advertisements
Advertisements
प्रश्न
Name two reversible changes.
Advertisements
उत्तर
Melting of ice.
Dissolving of salt in water.
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Burning of paper and wood
Fill in the blank.
A new substance is formed in a ............... change.
Classify the following changes as physical or chemical:-boiling
Classify the following changes as physical or chemical.
Which of the following are physical changes and which are chemical changes ?
Glowing of an electric bulb
Classify the following as a physical or a chemical change.
Butter getting rancid
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Match the examples of changes in List I with the correct type of change in List II.
| List I | List II |
| 1. Burning of paper | A: Physical change |
| 2. The ringing of an electric bell | B: Chemical change |
| 3. Curdling of milk | |
| 4. Electric light is switched on | |
| 5. Melting of butter |
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
