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प्रश्न
Give one example of change which occurs on heating but can be reversed.
एक पंक्ति में उत्तर
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उत्तर
An iron rod’s heating is a reversible process.
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संबंधित प्रश्न
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
When a candle is lit the following changes are observed.
- Wax melts.
- Candle keeps burning.
- The size of the candle decreases.
- The molten wax solidifies
- Which of the changes can be reversed? Justify your answer
Most of the physical changes are ______.
Rusting of iron is a reversible change.
Name the two types of changes.
What are irreversible changes?
Analogy:
Irreversible change: Making idly front batter.
Reversible change: ______.
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.
Circle the odd one out. Give a reason for your choice.
Choose the odd one out. Give a reason for your choice.
