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प्रश्न
True or false
Is melting of ice a reversible change?
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
State the differences between a physical change and a chemical change.
What are reversible and irreversible changes ? Give one example for each.
Write true or false
Burning of paper and formation of curd are reversible changes.
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Define a chemical change. Give two examples of the above changes.
Compare the energy changes involved during a physical and a chemical change.
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
Classify the following changes as physical and chemical changes
A rough piece of wood is sanded and polished resulting in change in texture, Rusting of a iron nail, Painting the grill, Bending a paper clip, Pounding silver into thin plate, Rolling the chappathi dough into thin wire, Occurrence of day and night, eruption of volcano, burning of matchstick, dosa from the batter, blinking of eyelids, occurrence of a thunderstorm, rotation of the earth, formation of eclipses.
| Sr. No. | Physical changes | Chemical changes |
| 1. | ||
| 2. |
Mention a few physical properties of a substance.
