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प्रश्न
State which of the following terms connected with change of state of matter i.e.
(a) Melting
(b) Vaporisation
(c) Condensation
(d) Freezing
pertain to –
- Conversion of a liquid into a vapour or gas.
- Conversion of a liquid into a solid.
- Conversion of a solid into a liquid on heating.
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उत्तर
- (b) Vaporisation
- (d) Freezing
- (a) Melting
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Classify the following changes as physical or chemical:- photosynthesis in plants
Fill in the blank
Chemical change occurs as a result of __________ between two substances.
State whether the following is physical or chemical changes.
mixing oil with water —
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Classify the following as physical or chemical change :
Condensation of steam
Give the main differences between physical changes and chemical changes.
Distinguish between the following.
Physical change and chemical change
State whether the following statement is true or false:
Stretching of rubber bands is not a physical change.
