| 1 |
the order of the rate of diffusion of gases NH<sub>3</sub>, SO<sub>2</sub>, CI<sub>2</sub>and CO<sub>2 </sub>is |
- A. NH<sub>3 </sub>> SO<sub>2</sub>>CI<sub>2</sub>CO<sub>2</sub>
- B. NH<sub>3</sub>> CO<sub>2</sub>> SO<sub>2</sub>> CI<sub>2</sub>
- C. CI<sub>2</sub>> SO<sub>2</sub>> CO<sub>2</sub>> NH<sub>3</sub>
- D. NH<sub>3</sub>> CO<sub>2</sub>> CI<sub>2</sub>> SO<sub>2</sub>
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| 2 |
Which mixture of gases is used by the deep sea divers. |
- A. Oxygen and nitrogen
- B. Oxygen and helium
- C. Oxygen and carbon di oxide
- D. Oxygen and water vapours
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| 3 |
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
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| 4 |
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
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| 5 |
Keeping the temperature constant of the gas is expanded. |
- A. Pressure will decrease
- B. Temperature will increase
- C. Kinetic energy of molecules will increase
- D. No. of gas molecules increases
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| 6 |
If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will |
- A. Remain unchanged
- B. Increase four times
- C. Reduce to 1/4
- D. Be doubled
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| 7 |
A gas is heated in such a way that its volume and absolute temperature both are doubled. the pressure of the gas |
- A. Becomes 2 times
- B. Becomes 4 times
- C. Become half
- D. Remain same
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| 8 |
Under which conditions of temperature and pressure will a real gas behave most like an ideal gas. |
- A. Low temperature and how pressure
- B. High temperature and high pressure
- C. Low temperature and high pressure
- D. High temperature and low pressure
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| 9 |
If the number of gas molecules are doubled in a certain volume of a gas, the pressure is. |
- A. Decreased to half
- B. Doubled
- C. Increased to four time
- D. Remains unchanged
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| 10 |
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
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