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प्रश्न
Write true or false
Earthquake is a desirable change.
विकल्प
True
False
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उत्तर
False
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Try segregating the things around you as pure substances or mixtures.
Write short answer.
What are man-made changes ?
Tick (√) the correct alternative from the choice given for the following statement.
A substance which can not sublime is
Write true or false
Burning of paper and formation of curd are reversible changes.
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
What will you take into account while identifying the following?
A chemical change in a substance.
Select the correct answer from the choice given below to complete the sentence
The energy required for completion of a physical change is ______________ when the change is reversed.
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 |
Grinding of wheat grain changes its size. It is a ____________ change.
