Advertisements
Advertisements
Question
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Advertisements
Solution
- Sublimation – A: Physical Change
- Fermentation – B: Chemical change
- Liquefaction or condensation – A: Physical Change
- Magnetization – A: Physical Change
- Respiration – B: Chemical change
APPEARS IN
RELATED QUESTIONS
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
Melting of solid (wax) is a physical change.
Fill in the blank.
When a candle burns, wax melts. Melting of wax is a ________ change.
Write true or false
Cutting of paper into pieces is a chemical change.
Tick the most appropriate answer.
Physical changes are
Photosynthesis cannot take place at night.
Distinguish between the following.
Physical change and chemical change
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Fill in the blanks with the appropriate words of the statement given below:
Heating a piece of iron is considered a __________ change while heating a piece of coal [carbon] is considered a ___________ change.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
