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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 changes involved in the following process as physical or chemical changes:
Photosynthesis
Write true or false for the statement.
Deforestation is a man-made change
Write short answer.
Name two reversible changes.
Fill in the blank.
When a candle burns, wax melts. Melting of wax is a ________ change.
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Write true or false
Burning of paper and formation of curd are reversible changes.
Ammonium chloride is also a sublimable solid. Give a reason why the sublimation of ammonium chloride involves a physical and a chemical change.
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.
Which of the following is a physical change?
Give an example of a physical change in which the color of the substance changes.
