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प्रश्न
State whether the following is physical or chemical changes.
mixing oil with water —
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उत्तर
physical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Explain why burning of wood and cutting it into small piece are considered as two different types of changes.
State whether the following is physical or chemical changes.
respiration in living beings —
State whether the following is physical or chemical changes.
lightning —
Write true or false
Deforestation is a man-made change.
Which of the following are physical changes ?
- melting of iron metal
- rusting of iron metal
- bending of an iron rod
- drawing a wire of iron metal
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
Higher order Thinking question
Boiling of water is a physical change; but boiling of egg is a chemical change. Why?
Mention some of the different conditions needed for chemical changes to occur.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
