| 1 |
In diamonds, carbon are ____________ bonded. |
- A. Tetrahedrally
- B. Single
- C. Double
- D. None
|
| 2 |
At freezing point which one of the following coexists in dynamic equilibrium?<br> |
- A. gas and solid <br>
- B. liquid and gas <br>
- C. liquid and solid<br>
- D. all of these<br>
|
| 3 |
1 torr = ? |
- A. 1 mm of Hg
- B. 1 atm
- C. 760 mm of Hg
- D. 1 pascal
|
| 4 |
Effusion is a property of: |
- A. Gases
- B. LIquids
- C. Solids
- D. Plasma
|
| 5 |
The transition temperature of sulphur is: |
- A. 96 °C
- B. 250 °C
- C. 18 °C
- D. 218 °C
|
| 6 |
Bucky balls are ____________ allotropic forms of carbon. |
- A. 1st
- B. 2nd
- C. 3rd
- D. 4th
|
| 7 |
The reverse of evaporation is: |
- A. Boiling
- B. Diffusion
- C. Condensation
- D. Freezing
|
| 8 |
Carbon forms ____________ bonds in diamonds. |
|
| 9 |
Solid particles possess which one of the following motions?<br> |
- A. rotational motions<br>
- B. vibrational motions<br>
- C. translation motions<br>
- D. both translational and vibrational motions<br>
|
| 10 |
Which gas will diffuse faster than others? |
- A. Hydrogen
- B. Oxygen
- C. Chlorine
- D. Nitrogen
|