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प्रश्न
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
उत्तर
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
Melting of solid (wax) is a physical change.
Write true or false
Melting of ice is a physical change.
Write true or false
Dissolving of solute in a solvent and rusting of iron are both physical changes.
Ammonium chloride is also a sublimable solid. Give a reason why the sublimation of ammonium chloride involves a physical and a chemical change.
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
Select the correct answer from the choice given below to complete the sentence
The matter is added or removed during a ____________ change.
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. |
What is the difference between dissolution of sugar and burning of sugar ?
Sublimation of Iodine is a ______.
