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प्रश्न
Chemical reactions are example for
पर्याय
reversible change
irreversible change
both of them
none of them
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उत्तर
Irreversible change
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संबंधित प्रश्न
Short Answer Type Question:
What is a chemical 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 |
To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
The burning of the paper is an irreversible change.
What are reversible changes?
Touch me not plant: ______:: digestion of food: Irreversible change.
Salt can be separated from its solution (salt dissolved in water), because ______.
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
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.
Choose the odd one out. Give reason for your choice.
