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प्रश्न
Classify the following as a physical or a chemical change.
Burning of coal
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उत्तर
Chemical change
APPEARS IN
संबंधित प्रश्न
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
A physical change is temporary. Explain.
How do you say that the process of digestion is a chemical change ?
Write true or false
Burning of sugar is a temporary change.
Tick the most appropriate answer.
Physical changes are
Fill in the blank.
The reaction in which energy is evolved is called
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
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 |
Explain the characteristics of physical change with examples.
