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प्रश्न
An iron ring is heated. Which of the following statement about it is incorrect?
विकल्प
The ring expands.
The ring almost comes to the same size on cooling.
The change in this case is reversed.
The ring changes its shape and the change cannot be reversed.
उत्तर
The ring changes its shape and the change cannot be reversed.
Explanation -
The ring expands on heating and comes back to its original size on cooling. The change is reversible.
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संबंधित प्रश्न
Long Answer Type Question:
How does curd being set? Is this change reversible?
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| Reversible change | Recyclable waste |
| India 2020 | Organic waste |
| Paper | Melting of ice |
| Vegetables | Irreversible change |
Circle the odd one.
Circle the odd one.
Formation of curd from milk is
Choose the odd one out. Give reason for your choice.
Periodical removal of one of the products of a reversible reaction increases the yield.
Rusting of iron is a reversible change.
Give one example of change which occurs on heating but can be reversed.
Choose the odd one out. Give a reason for your choice.
