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प्रश्न
Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.
उत्तर
Examples of reversible changes
- Melting of wax
- Folding of a paper
- Inflating a tyre or balloon
- Knitting of a sweater
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संबंधित प्रश्न
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Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
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
Give one example of change which occurs on cooling but can be reversed.