Advertisements
Advertisements
Question
Classify the following as chemical or physical change:
Melting of butter in a pan
Options
Chemical change
Physical change
Advertisements
Solution
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
RELATED QUESTIONS
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
Tick (√) the correct alternative from the choice given for the following statement.
A substance which can not sublime is
Classify the following as physical or chemical change :
Growth of a plant
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.
Select the chemical changes from the following list of changes
Rotting of eggs.
Select the chemical changes from the following list of changes
Breaking of glass
Select the correct answer from the choice given below to complete the sentence
The energy required for completion of a physical change is ______________ when the change is reversed.
A physical change is generally____________.
Give two examples for the following case:
Physical changes which are not reversible
