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प्रश्न
Classify the following as chemical or physical change:
Dissolving common salt in water.
विकल्प
Chemical change
Physical change
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उत्तर
Physical change
Explanation:
The dissolution of common salt in water is a physical change because salt is easily retrieved by evaporating the water.
संबंधित प्रश्न
Try segregating the things around you as pure substances or mixtures.
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
A physical change is temporary. Explain.
State the differences between a physical change and a chemical change.
State whether the following is physical or chemical changes.
water cycle in nature —
Sublimation is classified as a physical change. Why ?
Give the main differences between physical changes and chemical changes.
Select the chemical changes from the following list of changes
Preparation of carbon dioxide from calcium carbonate & dilute hydrochloric acid.
Name the following.
The salt obtained when a chemical change takes place on the addition of iron to dilute sulphuric acid.
Physical Change: Boiling::Chemical Change: ______.
