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प्रश्न
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
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उत्तर
The following changes are irreversible:
d. Baking cake in an oven.
f. Making biogas from cow dung.
g. Burning of a candle.
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संबंधित प्रश्न
Circle the odd one.
Circle the odd one.
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Water changes into ice on cooling is an example of ______.
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.
Water vapour into water
Can we reverse the following change? If yes, suggest the name of the method.
Ice into water
Give one example of change which occurs on heating but can be reversed.
Find the odd one out. Give reason for your choice.
Find the odd one out. Give reason for your choice.
