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प्रश्न
Classify the following as physical or chemical change :
Growth of a plant
विकल्प
Physical change
Chemical change
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उत्तर
Growth of plant – Chemical change
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संबंधित प्रश्न
What are reversible and irreversible changes ? Give one example for each.
Fill in the blank
Changes that occur in nature are called ______
Classify the following as physical or chemical change :
Formation of curd from milk
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
Given reason:
Freezing of water to ice and evaporation of water are physical 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. |
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
State whether the following statement is true or false:
Anaerobic bacteria digest animal waste and produce biogas.
Give two examples for the following case:
Physical changes which are not reversible
