Advertisements
Advertisements
प्रश्न
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible change.
विकल्प
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true
Advertisements
उत्तर
A is false but R is true
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Making a fruit salad with raw fruits
Tick (√) the correct alternative from the choice given for the following statement.
A substance which can not sublime is
True or false
In a physical change no net energy change is involved.
True or false
Dissolving of a solid in liquid is a physical change.
Make a list of different types of changes with example.
What will you take into account while identifying the following?
A physical change in a substance.
Select the chemical changes from the following list of changes
Breaking of glass
Stretching gold coin into a ring is a ______ change.
Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a –
Cutting a log of wood into pieces is a chemical change.
