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प्रश्न
Write true or false
Burning of sugar is a temporary change.
विकल्प
True
False
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उत्तर
False
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संबंधित प्रश्न
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
Chemical changes are accompanied by changes in energy.
Write true or false
Decomposition of leaves is a fast change.
Which of the following are physical changes and which are chemical changes ?
Freezing of water
Classify the following as a physical or a chemical change.
Burning of paper
Differentiate between a physical change and a chemical change with reference to – Formation of products.
Give reasons why – separation of mixtures e.g. iron from a mixture of iron and sulphur is a physical change, but heating a mixture of iron and sulphur is considered a chemical change.
Select the correct answer from the choice given below to complete the sentence
The matter is added or removed during a ____________ change.
Distinguish physical and chemical changes.
What kind of change is shown by tearing of paper?
