Advertisements
Advertisements
Question
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
Options
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
Solution
Both A and R are true but R is not the correct explanation of A.
APPEARS IN
RELATED QUESTIONS
Classify the following as chemical or physical change:
Boiling of water to form steam.
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Make a list of different types of changes with example.
Write true or false
Melting of ice is a physical change.
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
A change in which matter undergoes a change but the total mass of the substance is unaltered is a ______ change.
What type of energy changes is associated when ice melts?
Which of the following is a physical change?
Explain the characteristics of physical change with examples.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
