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प्रश्न
Choose the odd one out. Give reason for your choice.
Inflating a balloon, popping a balloon, fading of wall paint, burning of kerosene
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उत्तर
Inflating a balloon
Reason:
Inflating a balloon is a reversible change. The other three are irreversible changes.
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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.
Circle the odd one.
When a candle is lit the following changes are observed.
- Wax melts.
- Candle keeps burning.
- The size of the candle decreases.
- The molten wax solidifies
- Which of the changes can be reversed? Justify your answer
Give examples to explain the difference between changes that can or cannot be reversed.
Water changes into ice on cooling is an example of ______.
Evaporation of water is a reversible change.
What are reversible changes?
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
Give one example of change occurs on mixing two substances, but can be reversed.
