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प्रश्न
Which of the following is a physical change?
पर्याय
Rusting of iron
Combustion of magnesium ribbon
Burning of candle
Melting of wax
उत्तर
Melting of wax
Explanation:
Melting of wax is a physical change. All other changes are chemical changes.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
Classify the following as chemical or physical change:
Making a fruit salad with raw fruits
Write true or false for the statement.
Dissolving of solute in a solvent and rusting of iron are both physical changes.
Classify the following changes as physical or chemical:-boiling
State whether the following is physical or chemical changes.
photosynthesis —
Classify the following as a physical or a chemical change.
Burning of coal
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Slow and fast change.
Differentiate between a physical change and a chemical change with reference to – Nature of change is temporary and reversible or permanent and irreversible.
Match the examples of changes in List I with the correct type of change in List II.
| List I | List II |
| 1. Burning of paper | A: Physical change |
| 2. The ringing of an electric bell | B: Chemical change |
| 3. Curdling of milk | |
| 4. Electric light is switched on | |
| 5. Melting of butter |
