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प्रश्न
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
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उत्तर
Wax [CxHy]
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Cutting a log of wood into pieces is a chemical change.
Chemical changes are accompanied by changes in energy.
Photosynthesis cannot take place at night.
Write true or false
Melting of ice is a physical change.
Write true or false
Deforestation is a man-made change.
Name two reversible changes.
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
Select the correct answer from the choice given below to complete the sentence
The dissolution of lead nitrate in water is deemed as a _________ change.
Explain the characteristics of physical change with examples.
