| 1 |
The rate of diffusion depends on. |
- A. Size of the particles
- B. Temperature
- C. Size of space between particles
- D. All of the above
|
| 2 |
Change of a solid object into liquid state on heating is called. |
- A. Freezing
- B. Melting
- C. Boiling
- D. Evaporation
|
| 3 |
Diffusion takes place in |
- A. Liquids
- B. gases
- C. Both a and b
- D. Solids
|
| 4 |
Movement of particles from an area where they are more to an area where they are less. |
- A. Boiling
- B. Evaporation
- C. Diffusion
- D. Sublimation
|
| 5 |
Materials taht don't take the shpaed of the container. |
- A. Solids
- B. Liquids
- C. gases
- D. all of these
|
| 6 |
Which of the following is opposite the boiling? |
- A. Evaporation
- B. Melting
- C. Condensation
- D. Freezing
|
| 7 |
Particles move freely in all directions in |
- A. Solids
- B. Liquids
- C. gases
- D. None of these
|
| 8 |
Liquid have fix |
- A. Shape
- B. Volume
- C. Arrangement
- D. All of these
|
| 9 |
The process of changing gas into liquid. |
- A. Melting
- B. Evaporation
- C. Condensation
- D. Freezing
|
| 10 |
Solids and liquid objects cannot be compressed easily as their particles are |
- A. Closely packed
- B. Lossely packed
- C. Lacking spaces among them
- D. Scattered irregularly
|