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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 happens when sugar is heated?
Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.
Chemical reactions are example for
Analogy
Curdling of milk : irreversible change :: Formation of clouds : ________change
Which is reversible change?
Changes which cannot be reversed are called ______.
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
Give one example of change which occurs on cooling but can be reversed.
Give one example of change occurs on mixing two substances, but can be reversed.
Choose the odd one out. Give a reason for your choice.
