Advertisements
Advertisements
प्रश्न
Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
Advertisements
उत्तर
Curd into milk is an irreversible process.
APPEARS IN
संबंधित प्रश्न
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 |
Chemical reactions are example for
A stretched rubber band comes back to normal shape. It is an example for ________.
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Choose the odd one out. Give reason for your choice.
Inflating a balloon, popping a balloon, fading of wall paint, burning of kerosene
Dissolving sugar in water is a ______ change.
Can we reverse the following change? If yes, suggest the name of the method.
Ice 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.
Find the odd one out. Give reason for your choice.
