Advertisements
Advertisements
प्रश्न
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 |
Advertisements
उत्तर
| Bud to flower | Irreversible change |
| Reversible change | Melting of ice |
| India 2020 | Dr. A.P.J. Abdul Kalam |
| Paper | Recyclable waste |
| Vegetables | Organic waste |
APPEARS IN
संबंधित प्रश्न
Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.
Circle the odd one.
Differentiate reversible and irreversible reactions.
Give examples to explain the difference between changes that can or cannot be reversed.
Analogy:
Irreversible change: Making idly front batter.
Reversible change: ______.
Which of the following change cannot be reversed?
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?
Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
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 a reason for your choice.
