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प्रश्न
State whether the following is physical or chemical changes.
photosynthesis —
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उत्तर
chemical change.
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संबंधित प्रश्न
Name a chemical change which takes place in presence of:
State whether the following is physical or chemical changes.
water cycle in nature —
State whether the following is physical or chemical changes.
respiration in living beings —
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Slow and fast change.
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
When solute is dissolved in a solvent it forms a solution.
State whether the following statement is true or false:
Stretching of rubber bands is not a physical change.
Give two examples for the following case:
Physical changes which are not reversible
Which of the following is not a physical change?
