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प्रश्न
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
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उत्तर
Physical Change.
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संबंधित प्रश्न
Dissolving salt in water is a reversible change.
State whether the following is physical or chemical changes.
photosynthesis —
True or false
Dissolving of a solid in liquid is a physical change.
Classify the following as physical or chemical change :
Growth of a plant
Distinguish between the following.
Physical change and chemical change
Give four reasons why the burning of a magnesium ribbon in the air is considered a chemical change.
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.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
______ is the Universal Solvent.
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
Do you think rust is different from iron?
