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प्रश्न
Select the chemical changes from the following list of changes
Rotting of eggs.
उत्तर
Rotting of eggs is CHEMICAL change, change in composition takes place, is an irreversible process.
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संबंधित प्रश्न
Tick the most appropriate answer.
5. Photosynthesis requires
- heat energy.
- wind energy
- sunlight.
- sound energy
Fill in the blank.
Changes that occur in nature are called ........................
State whether the following is physical or chemical changes.
mixing oil with water —
Distinguish between the following.
Physical change and chemical change
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Name the following.
A form of energy required for a chemical change.
What is the difference between dissolution of sugar and burning of sugar ?
Water is the universal solvent. Why?
Keeping a stone in sunlight for few hours is ______.
Which of the following is not a physical change?
