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प्रश्न
Physical Change: Boiling::Chemical Change: ______.
उत्तर
Physical Change: Boiling::Chemical Change: Burning
APPEARS IN
संबंधित प्रश्न
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
What do you observe when :
lighted match stick is brought near the mouth of the test tube containing hydrogen gas.
Fill in the blank
Revolution of the earth around the sun is a ________ change.
State whether the following is physical or chemical change.
Digestion of food —
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.
Glowing of an Electric Bulb
Select the chemical changes from the following list of changes
Butter turning rancid
Match the examples of changes in List I with the correct type of change in List II.
| List I | List II |
| 1. Burning of paper | A: Physical change |
| 2. The ringing of an electric bell | B: Chemical change |
| 3. Curdling of milk | |
| 4. Electric light is switched on | |
| 5. Melting of butter |
Which of the following is not a physical change?
Iron pipes coated with zinc do not get rusted easily.
