Advertisements
Advertisements
Question
Give two examples for the following case:
Physical changes which are not reversible
Advertisements
Solution
- Cutting of paper
- Breaking of glass
APPEARS IN
RELATED QUESTIONS
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
Classify the following changes as physical or chemical:- photosynthesis in plants
State whether the following is physical or chemical changes.
cutting wood into small pieces —
Classify the following as physical or chemical changes :
- Cooking of food
- Boiling of water
- Cutting of trees
- D0issolving salt in water
- Digestion of food
- Melting of ice
Which of the following are physical changes and which are chemical changes ?
Rusting of iron
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
Grinding of wheat grain changes its size. It is a ____________ change.
