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प्रश्न
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
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उत्तर
Physical change
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संबंधित प्रश्न
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
Define physical change. Give two examples for the above changes.
What are reversible and irreversible changes ? Give one example for each.
Which of the following are physical changes and which are chemical changes ?
Rusting of iron
Classify the following as a physical or a chemical change.
Melting of wax
Select the chemical changes from the following list of changes
Breaking of glass
Physical Change: Boiling::Chemical Change: ______.
Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are:
Grinding of wheat grain changes its size. It is a ____________ change.
