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प्रश्न
Fill in the blank
Chemical change occurs as a result of __________ between two substances.
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उत्तर
Chemical change occurs as a result of rearrangement of atoms between two substances.
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संबंधित प्रश्न
Write true or false for the statement.
Dissolving of solute in a solvent and rusting of iron are both physical changes.
A physical change is temporary. Explain.
What are reversible and irreversible changes ? Give one example for each.
What do you observe when :
lighted match stick is brought near the mouth of the test tube containing hydrogen gas.
Name a chemical change which takes place in presence of:
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.
Desirable and undesirable change.
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
What type of energy changes is associated when ice melts?
Which of the following is not a physical change?
Iron pipes coated with zinc do not get rusted easily.
