Advertisements
Advertisements
प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
पर्याय
Chemical change
Physical change
Advertisements
उत्तर
Physical change
Explanation:
Melting butter in a pan is a physical transformation since there is no change in the chemical composition of butter; only its physical state changes from solid to liquid.
APPEARS IN
संबंधित प्रश्न
Explain why burning of wood and cutting it into small piece are considered as two different types of changes.
What role does energy play in initiating a chemical change ?
Solve this crossword by using the clues that follow.
Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.
Down
1. It is the change that takes place in case of swinging pendulum of a clock.
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change
Is burning a physical change or a chemical change? Why?
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
What will you take into account while identifying the following?
A physical change in a substance.
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical change.
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Wood to sawdust:______:: Wood to Ash: Chemical change
Tearing of sheet of paper into pieces is ______ By the process of Heating of water, change.
