1 |
In severe winter, the droplets of water in the atmosphere are frozens called. |
dew
fog
Frost
None of these
|
2 |
The rate of diffusion depends on. |
Size of the particles
Temperature
Size of space between particles
All of the above
|
3 |
Diffusion takes place in |
Liquids
gases
Both a and b
Solids
|
4 |
Particles move freely in all directions in |
Solids
Liquids
gases
None of these
|
5 |
Liquid have fix |
Shape
Volume
Arrangement
All of these
|
6 |
Particles are arragned on regular patterns and packed strongly together in. |
gas
liquid
Solid
None of these
|
7 |
Change of a solid object into liquid state on heating is called. |
Freezing
Melting
Boiling
Evaporation
|
8 |
Which of the following is opposite the boiling? |
Evaporation
Melting
Condensation
Freezing
|
9 |
Movement of particles from an area where they are more to an area where they are less. |
Boiling
Evaporation
Diffusion
Sublimation
|
10 |
Boiling point of wate is. |
0 oC
0 oF
100 oC
100 oF
|