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प्रश्न
What is reversible change?
उत्तर
Changes which can be reversed are called reversible change.
Eg: melting of ice.
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संबंधित प्रश्न
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Changes which cannot be reversed are called ______.
Evaporation of water is a reversible change.
The burning of the paper is an irreversible change.
Touch me not plant: ______:: digestion of food: Irreversible change.
Can we reverse the following change? If yes, suggest the name of the method.
Water vapour 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
Tearing of paper is said to be a change that cannot be reversed. What about paper recycling?
Give one example of change which occurs on mixing two substances, but cannot be reversed.
Circle the odd one out. Give a reason for your choice.
