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प्रश्न
State whether the following is physical or chemical changes.
shaping a piece of glass —
उत्तर
physical change,
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संबंधित प्रश्न
Fill in the blank.
Changes that occur in nature are called ........................
State whether the following is physical or chemical changes.
glowing of a bulb -
State whether the following is physical or chemical changes.
water cycle in nature —
True or false
Dissolving of a solid in liquid is a physical change.
Write true or false
Decomposition of leaves is a fast change.
Classify the following as physical or chemical change :
Condensation of steam
Distinguish between the following.
Physical change and chemical change
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. |
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
Tearing of sheet of paper into pieces is ______ By the process of Heating of water, change.
