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Question
Tearing of paper is said to be a change that cannot be reversed. What about paper recycling?
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Solution
Recycling of paper cannot be classified as a reversible change because the quality, colour and texture of the paper changes on recycling and we get a different type of paper not the original one.
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RELATED QUESTIONS
Match the following.
| Bud to flower | Dr. A.P.J. Abdul Kalam |
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| India 2020 | Organic waste |
| Paper | Melting of ice |
| Vegetables | Irreversible change |
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Differentiate reversible and irreversible reactions.
Change is the ______ of a substance from one form to another.
Changes which cannot be reversed are called ______.
Rusting of iron is a reversible change.
When ‘Touch me not’ plant is touched by us, ______ changes occur.
The blackening of the Silver anklet is a (an) ______.
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
Find the odd one out. Give reason for your choice.
