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Question
A stretched rubber band comes back to normal shape. It is an example for ________.
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Solution
A stretched rubber band comes back to normal shape. It is an example for Reversible changes.
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RELATED QUESTIONS
Very Short Answer Type Question:
Some common changes are given in the below Table. Which of these changes do you think can be reversed?
| Change | Can be reversed |
| (i) Raw egg to boiled egg | Yes/No |
| (ii) Batter to idli | |
| (iii) Wet clothes to dirty clothes | |
| (iv) Woollen yarn to knitted sweater | |
| (v) Grain to its flour | |
| (vi) Cold milk to hot milk | |
| (vii) straight string to a cold string | |
| (viii) Bud to flower | |
| (ix) Milk to paneer | |
| (x) Cow dung to biogas | |
| (xi) stretched rubber band to its normal size | |
| (xii) Melting of ice-cream |
Drying of wet clothes in air is an example of
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Dissolving sugar in water is a ______ change.
What are irreversible changes?
When ‘Touch me not’ plant is touched by us, ______ changes occur.
A piece of iron is heated till it becomes red-hot. it then becomes soft and is beaten to a desired shape. What kind of changes are observed in this process-reversible or irreversible?
Can we reverse the following change? If yes, suggest the name of the method.
Water vapour into water
Give one example of change which occurs on heating but cannot be reversed.
Change of a bud into a flower is a change which cannot be reversed. Give four more such example.
