| 1 |
The partial pressure of oxygen in lungs is |
- A. 760 torr
- B. 320 torr
- C. 159 torr
- D. 116 torr
|
| 2 |
Pressure remaining constant at which temperature the volume of a gas will come twice of what it is at 0 <sup>o</sup>C |
- A. 546 <sup>o</sup>C
- B. 200 <sup>o</sup>C
- C. 546 K
- D. 273 K
|
| 3 |
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
|
| 4 |
The molar volume of CO<sub>2</sub>is maximum at |
- A. STP (0°C and 1 atm)
- B. 127° C and 1 atm
- C. 0°C and 2 atm
- D. 273°C and 2 atm
|
| 5 |
If we plot a graph between I/V at x-axis and pressure at Y -axis |
- A. a parabolic graph is obtained
- B. By increasing temperature straight line move toward x axis
- C. By increases temperature straight line move toward y axis.
- D. No. change in line by increasing temperature.
|
| 6 |
Which of the following will have the same number of molecules at STP |
- A. 280 cm<sup>3</sup>of CO<sub>2</sub>and 280 cm<sup>3</sup>of N<sub>2</sub>O
- B. 11.2 dm<sup>3</sup>of O<sub>2</sub>and 32 g of O<sub>2</sub>
- C. 44 g of CO<sub>2</sub>and 11.2 dm<sup>3</sup>of CO
- D. 28 g of N<sub>2</sub>and 5.6 dm<sup>3</sup>of oxygen
|
| 7 |
The molecules of a gas show more deviation from ideal behaviour at low temperature, because |
- A. Attractive force dominate at low temperature
- B. Kinetic energies are increased
- C. Collisions become less frequent
- D. Densities of the gases increase
|
| 8 |
Pressure remaining constant at which temperature the volume of a gas will become twice of what it is at 0° C |
- A. 546°C
- B. 200°C
- C. 546 K
- D. 273 K
|
| 9 |
Gases exert pressure on the walls of the container becasue the gas molecules. |
- A. Collide with each other
- B. Collide with walls of container
- C. Have definite volume
- D. Obey the gas laws
|
| 10 |
Vapour pressure of liquid depends upon |
- A. Amount of liquid
- B. Surface area
- C. Temperature
- D. Size of container
|