Advertisements
Advertisements
प्रश्न
Classify the following as physical or chemical change :
Growth of a plant
विकल्प
Physical change
Chemical change
Advertisements
उत्तर
Growth of plant – Chemical change
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
Select the chemical changes from the following list of changes
Preparation of carbon dioxide from calcium carbonate & dilute hydrochloric acid.
Filling up a balloon with hot air is a _______ change.
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible change.
Fill in the blanks in the following statements using the words given in the box.
| rusted, colourful, substance, chemical, physical, reversible, iron oxide, object |
- Making sugar solution is a ______ change.
- A physical change is generally ______.
- Grinding of wheat grain changes its size. It is a ______ change.
- Iron benches kept in lawns and gardens get ______. It is a ______ change because a new ______ is formed.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
