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प्रश्न
Give one example of change which occurs on heating but cannot be reversed.
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उत्तर
Baking chapati is an irreversible change.
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संबंधित प्रश्न
Chemical reactions are example for
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
Rolling of chapati and baking of chapati are the changes that ______.
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
Can we reverse the following change? If yes, suggest the name of the method.
Water vapour into water
Boojho’s sister broke a white dove, a symbol of peace, made of Plaster of Paris (POP). Boojho tried to reconstruct the toy by making a powder of the broken pieces and then making a paste by mixing water. Will he be successful in his effort? Justify your answer.
Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.
Choose the odd one out. Give a reason for your choice.
Find the odd one out. Give reason for your choice.
Choose the odd one out. Give reason for your choice.
