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प्रश्न
An example for reversible change is
पर्याय
melting of ice
burst of balloon
burning paper
change of milk into curd
उत्तर
Melting of ice
APPEARS IN
संबंधित प्रश्न
Short Answer Type Question:
What is a chemical change? Explain with example.
Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.
A stretched rubber band comes back to normal shape. It is an example for ________.
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Water on ______ changes to ice and on ______ comes back to water.
The burning of the paper is an irreversible change.
Touch me not plant: ______:: digestion of food: Irreversible change.
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
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.
Paheli mixed flour and water and
- made a dough,
- rolled the dough to make a chapati,
- baked the chapati on a pan,
- dried the chapati and ground it in a grinder to make powder.
Identify the changes (i) to (iv) as the changes that can be reversed or that cannot be reversed.
