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प्रश्न
Stretching gold coin into a ring is a ______ change.
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उत्तर
Stretching gold coin into a ring is a
physical change.
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संबंधित प्रश्न
Tick the most appropriate answer.
4. Chemical changes involve
- change in shape.
- change in size.
- change in molecular composition.
- none of these
Ripening of fruits is a desirable change.
State four differences between physical and chemical changes.
Name a chemical change which takes place in presence of:
Classify the following as a physical or a chemical change.
Burning of paper
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
Differentiate between a physical change and a chemical change with reference to – Nature of change is temporary and reversible or permanent and irreversible.
Is a change of state of matter – a physical or a chemical change. Give reasons.
Select the chemical changes from the following list of changes
Preparation of carbon dioxide from calcium carbonate & dilute hydrochloric acid.
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
