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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.
Match the following.
| Bud to flower | Dr. A.P.J. Abdul Kalam |
| Reversible change | Recyclable waste |
| India 2020 | Organic waste |
| Paper | Melting of ice |
| Vegetables | Irreversible change |
Drying of wet clothes in air is an example of
A drawing sheet changes when you draw a picture on it. Can you reverse this change?
The burning of the paper is an irreversible change.
Analogy:
Irreversible change: Making idly front batter.
Reversible 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?
Give one example of change occurs on mixing two substances, but can be reversed.
Change of a bud into a flower is a change which cannot be reversed. Give four more such example.
Choose the odd one out. Give a reason for your choice.
