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प्रश्न
An iron ring is heated. Which of the following statement about it is incorrect?
पर्याय
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.
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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
Short Answer Type Question:
What is a chemical change? Explain with example.
Circle the odd one.
Drying of wet clothes in air is an example of
Give examples to explain the difference between changes that can or cannot be reversed.
Water changes into ice on cooling is an example of ______.
Change is the ______ of a substance from one form to another.
Pick the change that can be reversed from the following.
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?
Can we reverse the following change? If yes, suggest the name of the method.
Water into water vapour
Give one example of change which occurs on heating but can be reversed.
