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प्रश्न
What is reversible change?
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उत्तर
Changes which can be reversed are called reversible change.
Eg: melting of ice.
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संबंधित प्रश्न
Short Answer Type Question:
What happens when sugar is heated?
Chemical reactions are example for
Formation of curd from milk is
Analogy
Curdling of milk : irreversible change :: Formation of clouds : ________change
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Which of the following change cannot be reversed?
Paheli had bought a new bottle of pickle from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?
Can we reverse the following change? If yes, suggest the name of the method.
Water into water vapour
Can we reverse the following change? If yes, suggest the name of the method.
Ice into water
Which of the following changes cannot be reversed?
- Blowing of a balloon
- Folding paper to make a toy aeroplane
- Rolling a ball of dough to make roti
- Baking cake in an oven
- Drying a wet cloth
- Making biogas from cow dung
- Burning of a candle
