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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 |
जोड़ियाँ मिलाइएँ
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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 |
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संबंधित प्रश्न
A stretched rubber band comes back to normal shape. It is an example for ________.
Differentiate reversible and irreversible reactions.
Water changes into ice on cooling is an example of ______.
Change is the ______ of a substance from one form to another.
When ‘Touch me not’ plant is touched by us, ______ changes occur.
While lighting a candle, Paheli observed the following changes.
- Wax was melting
- Candle was burning
- Size of the candle was reducing
- Melted wax was getting solidified.
Of the above, the changes that can be reversed are
Can we reverse the following change? If yes, suggest the name of the method.
Water into water vapour
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
Give one example of change which occurs on heating but can be reversed.
Give one example of change which occurs on cooling but can be reversed.
