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प्रश्न
Give one example of change which occurs on mixing two substances, but cannot be reversed.
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उत्तर
Mixing of cement and water is an irreversible change.
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संबंधित प्रश्न
Short Answer Type Question:
What is a chemical change? Explain with example.
Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.
Give examples to explain the difference between changes that can or cannot be reversed.
Most of the physical changes are ______.
Pick the change that can be reversed from the following.
Which of the following change cannot be reversed?
Can we reverse the following change? If yes, suggest the name of the method.
Ice into water
Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
Change of a bud into a flower is a change which cannot be reversed. Give four more such example.
Choose the odd one out. Give reason for your choice.
