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प्रश्न
Classify the following as a physical or a chemical change.
Boiling of water
उत्तर
Physical change
APPEARS IN
संबंधित प्रश्न
State the differences between a physical change and a chemical change.
State whether the following is physical or chemical changes.
glowing of a bulb -
Give two examples of periodic changes.
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Give four difference between physical and chemical changes.
Match the examples of changes in List I with the correct.
| List I | List II |
| 1. Expansion of a steel rod on heating | A: Physical change |
| 2. Rotting of eggs | B: Chemical change |
| 3. Milk turning sour | |
| 4. Tarnishing of copper | |
| 5. Separation of naphthalene from a mixture of naphthalene and sodium chloride. |
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. |
Analogy:
Melting of ice: Physical change.
Popping of popcorn: ______.
Classify the following as physical or chemical properties
Metallic sodium is soft enough to be cut with a knife.
Keeping a stone in sunlight for few hours is ______.
