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प्रश्न
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
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उत्तर
Physical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Passing of electric current through water, and water breaking down into hydrogen and oxygen gases.
What are reversible and irreversible changes ? Give one example for each.
State whether the following is physical or chemical change.
Digestion of food —
Tick (√) the correct alternative from the choice given for the following statement
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of gas.
Differentiate between a physical change and a chemical change with reference to – Formation of products.
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
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.
Filling up a balloon with hot air is a _______ change.
Analogy:
Melting of ice: Physical change.
Popping of popcorn: ______.
What kind of change is shown by tearing of paper?
