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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
Chemical reactions are example for
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Which is reversible change?
Most of the physical changes are ______.
Evaporation of water is a reversible change.
Name the two types of changes.
Salt can be separated from its solution (salt dissolved in water), because ______.
Rolling of chapati and baking of chapati are the changes that ______.
A potter working on his wheel shaped a lump of clay into a pot. He then baked the pot in an oven. Do these two acts lead to the same kind of changes or different? Give your opinion and justify your answer.
Choose the odd one out. Give reason for your choice.
