| 1 |
Equal masses of methane and oxygen are mixed in an empty container at 25°C, the fraction of total pressure exerted by oxygen is |
- A. 1/3
- B. 8/9
- C. 1/9
- D. 16/17
|
| 2 |
Which is not example of natural plasma. |
- A. Lightening bolt
- B. Aurora
- C. Neon sign
- D. Sum
|
| 3 |
How many balloon of 0.25 dm3 capacity at 1 atmospheric pressure can be filled from a hydrogen gas cylinder of 5 dm3 capacity at 10 atmospheric pressure. |
- A. 50
- B. 90
- C. 180
- D. 200
|
| 4 |
Critical temperature of CO2 gas is. |
- A. 31.1 <sup>o</sup>C
- B. 13.1 K
- C. 13.1 <sup>o</sup>C
- D. 1.31 <sup>o</sup>C
|
| 5 |
The spreading of fragrance of a rose or scent in air is due to. |
- A. Effusion
- B. Diffusion
- C. Osmosis
- D. Evaporation
|
| 6 |
Gas equation is derived by combining |
- A. Avogadro's and Charles's Law
- B. Boyle's and Charles's Law
- C. Avogadro's and Boyle's Law
- D. Avogadro's, Boyle's and Charles's Law
|
| 7 |
At which distance a molecule is present from its neighbor molecules of its own diameter, at room temperature. |
- A. 100 times
- B. 200 times
- C. 300 times
- D. 400 times
|
| 8 |
The deviation of a gas from ideal behavior is maximum at. |
- A. -10 <sup>o</sup>C and 5.0 atm
- B. -10<sup>o</sup>C and 2 atm
- C. 0<sup>o</sup>C and 2 atm
- D. 100<sup>o</sup>C and 2 atm
|
| 9 |
Observed pressure is less than ideal pressure for any gas due to |
- A. Intermolecular forces
- B. Size of molecules
- C. Boiling point of molecules
- D. Both a and c
|
| 10 |
Which one of the following gases cannot be liquefied by Line's method. |
- A. Water vapours
- B. NH3
- C. Nitrogen
- D. H2
|