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प्रश्न
Which of the following are physical changes and which are chemical changes ?
विकल्प
Physical change
Chemical change
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उत्तर
Burning of magnesium wire – Chemical change
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संबंधित प्रश्न
Try segregating the things around you as pure substances or mixtures.
Classify the changes involved in the following process as physical or chemical changes:
Photosynthesis
State the various conditions that favour the process of evaporation.
Is burning a physical change or a chemical change? Why?
Name two reversible changes.
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
The occurrence of lightning.
Filling up a balloon with hot air is a _______ change.
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible change.
Cutting a log of wood into pieces is a chemical change.
