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प्रश्न
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
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उत्तर
Yes, I can. It is a physical (reversible) change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Write true or false
Rusting of iron is a chemical change.
Name two reversible changes.
Classify the following as physical or chemical changes :
Breaking of a glass tumbler
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.
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.
Select the chemical changes from the following list of changes
Butter turning rancid
Name the following.
The salt obtained when a chemical change takes place on the addition of iron to dilute sulphuric acid.
What type of change is colouring of a paper?
