Advertisements
Advertisements
प्रश्न
Select the chemical changes from the following list of changes
The carbon cycle.
Advertisements
उत्तर
The carbon cycle is a PHYSICAL change as carbon remains as carbon, the mass of carbon remains the same in the cycle, is temporary, and only changes in the state take place.
APPEARS IN
संबंधित प्रश्न
What are reversible and irreversible changes ? Give one example for each.
Name two reversible changes.
Solve this crossword by using the clues that follow-
Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.
Down
1 . It is the change that takes place in case of swinging pendulum of a clock. –
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change.
Classify the following as a physical or a chemical change.
Burning of paper
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Define a chemical change. Give two examples of the above changes.
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical change.
State whether the following statement is true or false. If false write the correct statement.
Melting of butter and wax are examples of chemical changes.
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
What type of energy changes is associated when ice melts?
