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प्रश्न
Which of the following are physical changes and which are chemical changes ?
Glowing of an electric bulb
पर्याय
Physical change
Chemical change
उत्तर
Glowing of electric bulb – Physical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Write true or false for the statement.
Deforestation is a man-made change
State whether the following is physical or chemical change.
Digestion of food —
State whether the following is physical or chemical changes.
Slaking of lime —
Define a chemical change. Give two examples of the above changes.
Distinguish between the following.
Physical change and chemical change
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible change.
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Give the reason why the following is considered as chemical changes.
A bright light is seen evolved when a strip of magnesium is heated.
Gas exists in three states as solid, liquid, and gas.
