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प्रश्न
Rolling of chapati and baking of chapati are the changes that ______.
पर्याय
can be reversed.
cannot be reversed.
can be reversed and cannot be reversed, respectively.
cannot be reversed and can be reversed, respectively.
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उत्तर
Rolling of chapati and baking of chapati are the changes that can be reversed and cannot be reversed, respectively.
Explanation:
Rolling of chapati is a physical reversible change because there is no change in the properties of kneaded flour. Once the chapati is baked it cannot be reversed.
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संबंधित प्रश्न
Short Answer Type Question:
What is a physical change? Explain with example.
Drying of wet clothes in air is an example of
Give examples to explain the difference between changes that can or cannot be reversed.
Water on ______ changes to ice and on ______ comes back to water.
Evaporation of water is a reversible change.
Touch me not plant: ______:: digestion of food: Irreversible change.
A piece of iron is heated till it becomes red-hot. it then becomes soft and is beaten to a desired shape. What kind of changes are observed in this process-reversible or irreversible?
Paheli had bought a new bottle of pickle from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?
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
Find the odd one out and give reason for your choice.
