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Question
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
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Solution
Dissolution of glucose: reversible change:: Digestion of food: irreversible change
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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 |
To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
Evaporation of water is a reversible change.
Rolling of chapati and baking of chapati are the changes that ______.
Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
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
Choose the odd one out. Give a reason for your choice.
Circle the odd one out. Give reason for your choice.
Choose the odd one out. Give reason for your choice.
Find the odd one out. Give reason for your choice.
