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प्रश्न
Pick the change that can be reversed from the following.
विकल्प
Cutting of trees
Melting of ghee
Burning of candle
Blooming of flower
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उत्तर
Melting of ghee
Explanation:
The melted ghee can be frozen again hence this change can be reversed. Cutting of trees, burning of candle and blooming of flower cannot be reversed.
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संबंधित प्रश्न
An example for reversible change is
A stretched rubber band comes back to normal shape. It is an example for ________.
Water on ______ changes to ice and on ______ comes back to water.
The burning of the paper is an irreversible change.
Differences between
reversible and irreversible changes are:
The blackening of the Silver anklet is a (an) ______.
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?
Paheli had bought a new bottle of pickle from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?
Give one example of change which occurs on mixing two substances, but cannot be reversed.
Choose the odd one out. Give a reason for your choice.
