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प्रश्न
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
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उत्तर
| Physical change | Chemical change |
| Generally, energy is neither absorbed nor released during the change. | Generally, energy is either absorbed or evolved during change. |
| Example: Melting of ice, melting of the wax. | Example: Change of milk into curd and burning of a candle. |
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Name a chemical change which takes place in presence of:
Write true or false
Rusting of iron is a chemical change.
True or false
In a physical change no net energy change is involved.
Fill in the blank
Changes that occur in nature are called ______
What is a chemical change ? Give two examples of chemical changes.
Which of the following are physical changes and which are chemical changes ?
Glowing of an electric bulb
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Natural and man-made change.
Select the chemical changes from the following list of changes
The occurrence of lightning.
Select the chemical changes from the following list of changes
The crystallisation of salt from its solution.
