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प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
विकल्प
Chemical change
Physical change
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उत्तर
Chemical change
Explanation:
Rusting of an almirah is a chemical alteration because it produces a new chemical molecule known as hydrated iron oxide (rust).
संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Tick the most appropriate answer.
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- heat energy.
- wind energy
- sunlight.
- sound energy
Write short answer.
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Make a list of different types of changes with example.
Give the main differences between physical changes and chemical changes.
Fill in the blanks with the appropriate words of the statement given below:
Heating a piece of iron is considered a __________ change while heating a piece of coal [carbon] is considered a ___________ change.
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
Natural changes which take place in nature on their own, are beyond the control of human being.
Keeping a stone in sunlight for few hours is ______.
