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प्रश्न
Give one example of change which occurs on heating but cannot be reversed.
एक पंक्ति में उत्तर
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उत्तर
Baking chapati is an irreversible change.
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संबंधित प्रश्न
Short Answer Type Question:
What is a chemical change? Explain with example.
Circle the odd one.
Burning of match stick is a reversible change.
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
Most of the physical changes are ______.
Differences between
reversible and irreversible changes are:
Salt can be separated from its solution (salt dissolved in water), because ______.
Give one example of change which occurs on cooling but can be reversed.
Give one example of change which occurs on mixing two substances, but cannot be reversed.
Circle the odd one out. Give a reason for your choice.
