Advertisements
Advertisements
प्रश्न
Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?
Advertisements
उत्तर
The chalk reduces in size after writing on the blackboard. It becomes flat on the side from which we use it for writing.
APPEARS IN
संबंधित प्रश्न
Explain why air is used to inflate tyres.
The elements which normally exist in the liquid state are :
Name the different types of solutions. Give one example of each.
What will happen if a saturated solution is :
- heated
- cooled
Name the process by which the various gases of the air are separated.
One of the following does not undergo sublimation. This one is :
Select the correct answer from A, B, C, D & E for the statement given below:
An atom or group of atoms _________ having a resultant charge.
Liquids cannot be compressed and they have fixed volume.
Gas-solid is ______.
Define the term matter.
