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प्रश्न
State whether the following is physical or chemical changes.
burning of sugar —
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उत्तर
chemical change,
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संबंधित प्रश्न
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
State whether the following is physical or chemical changes.
respiration in living beings —
State whether the following is physical or chemical changes.
lightning —
State whether the following is physical or chemical change.
Digestion of food —
Classify the following as a physical or a chemical change.
Boiling of water
Given reason:
Freezing of water to ice and evaporation of water are physical changes.
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it 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.
Give the reason why the following is considered as chemical changes.
Copper carbonate on heat gives copper oxide and carbon dioxide.
Mention some of the different conditions needed for chemical changes to occur.
