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
उत्तर
A is false but R is true
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Burning of paper and wood
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Cutting a log of wood into pieces is a chemical change.
Write true or false for the statement.
Deforestation is a man-made change
State whether the following is physical or chemical changes.
lightning —
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
Fill in the blank
Changes that occur in nature are called ______
Write true or false
Decomposition of leaves is a fast change.
Which of the following are physical changes and which are chemical changes ?
Glowing of an electric bulb
Select the chemical changes from the following list of changes
Butter turning rancid
Keeping a stone in sunlight for few hours is ______.
