Gaseous State PYQs - Last 5 Years
JEE Main / Chemistry / Physical Chemistry / 35 recent questions
ChemistryPhysical Chemistry2021-2025
Practice 35 JEE Main Chemistry questions from Gaseous State. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2021-2025
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35PYQs
INTEGER77.1%
MCQ22.9%
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Last 5 Years Gaseous State Questions
Showing 35 of 35 filtered questions.
1Gaseous State
At the sea level, the dry air mass percentage composition is given as nitrogen gas: 70.0 , oxygen gas: 27.0 and argon gas: 3.0 . If total pressure is 1.15 atm , then calculate the ratio of following respectively:
(i) partial pressure of nit...
(i) partial pressure of nit...
MCQ+4 / -12025
2Gaseous State
Three bulbs are filled with \(\mathrm{CH}_{4}, \mathrm{CO}_{2}\) and \(\mathrm{Ne}\) as shown in the picture. The bulbs are connected through pipes of zero volume. When the stopcocks are opened and the temperature is kept constant througho...
INTEGER+4 / -12023
3Gaseous State
Arrange the following gases in increasing order of van der Waals constant 'a'
A. Ar
B. \(\mathrm{CH}_{4}\)
C. \(\mathrm{H}_{2} \mathrm{O}\)
D. \(\mathrm{C}_{6} \mathrm{H}_{6}\)
Choose the correct option from the following.
A. Ar
B. \(\mathrm{CH}_{4}\)
C. \(\mathrm{H}_{2} \mathrm{O}\)
D. \(\mathrm{C}_{6} \mathrm{H}_{6}\)
Choose the correct option from the following.
MCQ+4 / -12023
4Gaseous State
The total pressure of a mixture of non-reacting gases \(\mathrm{X}(0.6 \mathrm{~g})\) and \(\mathrm{Y}(0.45 \mathrm{~g})\) in a vessel is \(740 \mathrm{~mm}\) of \(\mathrm{Hg}\). The partial pressure of the gas \(\mathrm{X}\) is _______ $$\...
INTEGER+4 / -12023
5Gaseous State
A \(300 \mathrm{~mL}\) bottle of soft drink has \(0.2 ~\mathrm{M}~ \mathrm{CO}_{2}\) dissolved in it. Assuming \(\mathrm{CO}_{2}\) behaves as an ideal gas, the volume of the dissolved \(\mathrm{CO}_{2}\) at \(\mathrm{STP}\) is ____________ ...
INTEGER+4 / -12023
6Gaseous State
For 1 mol of gas, the plot of pV vs. p is shown below. p is the pressure and V is the volume of the gas
What is the value of compressibility factor at point A ?
What is the value of compressibility factor at point A ?
MCQ+4 / -12023
7Gaseous State
The number of statement/s, which are correct with respect to the compression of carbon dioxide from point (a) in the Andrews isotherm from the following is ___________
A. Carbon dioxide remains as a gas upto point (b)
B. Liquid carbon diox...
A. Carbon dioxide remains as a gas upto point (b)
B. Liquid carbon diox...
INTEGER+4 / -12023
8Gaseous State
A certain quantity of real gas occupies a volume of \(0.15~ \mathrm{dm}^{3}\) at \(100 \mathrm{~atm}\) and \(500 \mathrm{~K}\) when its compressibility factor is 1.07 . Its volume at 300 atm and \(300 \mathrm{~K}\) (When its compressibility...
INTEGER+4 / -12023
9Gaseous State
At \(600 \mathrm{~K}\), the root mean square (rms) speed of gas \(\mathrm{X}\) (molar mass \(=40\) ) is equal to the most probable speed of gas \(\mathrm{Y}\) at \(90 \mathrm{~K}\). The molar mass of the gas \(\mathrm{Y}\) is ___________ $$...
INTEGER+4 / -12023
10Gaseous State
At constant temperature, a gas is at a pressure of 940.3 mm Hg. The pressure at which its volume decreases by 40% is __________ mm Hg. (Nearest integer)
INTEGER+4 / -12023
11Gaseous State
Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is 0.46 gL\(-\)1 at 257\(^\circ\)C and 100 mm Hg. The molar mass of geraniol is ____________ g mol\(-\)1. (Nearest Integer)
[Given : R = 0.082 L at...
[Given : R = 0.082 L at...
INTEGER+4 / -12022
12Gaseous State
'x' g of molecular oxygen \(\left(\mathrm{O}_{2}\right)\) is mixed with \(200 \mathrm{~g}\) of neon (Ne). The total pressure of the non-reactive mixture of \(\mathrm{O}_{2}\) and Ne in the cylinder is 25 bar. The partial pressure of Ne is 2...
INTEGER+4 / -12022
13Gaseous State
100 g of an ideal gas is kept in a cylinder of 416 L volume at 27\(^\circ\)C under 1.5 bar pressure. The molar mass of the gas is __________ g mol\(-\)1. (Nearest integer)
(Given : R = 0.083 L bar K\(-\)1 mol\(-\)1)
(Given : R = 0.083 L bar K\(-\)1 mol\(-\)1)
INTEGER+4 / -12022
14Gaseous State
Which amongst the given plots is the correct plot for pressure (p) vs density (d) for an ideal gas?
MCQ+4 / -12022
15Gaseous State
For a real gas at \(25^{\circ} \mathrm{C}\) temperature and high pressure (99 bar) the value of compressibility factor is 2, so the value of Vander Waal's constant 'b' should be __________ \(\times 10^{-2} \mathrm{~L} \mathrm{~mol}^{-1}\) (...
INTEGER+4 / -12022
16Gaseous State
2.0 g of H2 gas is adsorbed on 2.5 g of platinum powder at 300 K and 1 bar pressure. The volume of the gas adsorbed per gram of the adsorbent is __________ mL.
(Given : R = 0.083 L bar K\(-\)1 mol\(-\)1)
(Given : R = 0.083 L bar K\(-\)1 mol\(-\)1)
INTEGER+4 / -12022
17Gaseous State
An evacuated glass vessel weighs 40.0 g when empty, 135.0 g when filled with a liquid of density 0.95 g mL\(-\)1 and 40.5 g when filled with an ideal gas at 0.82 atm at 250 K. The molar mass of the gas in g mol\(-\)1 is :
(Given : R = 0.082...
(Given : R = 0.082...
MCQ+4 / -12022
18Gaseous State
A mixture of hydrogen and oxygen contains \(40 \%\) hydrogen by mass when the pressure is \(2.2\) bar. The partial pressure of hydrogen is bar. (Nearest Integer)
INTEGER+4 / -12022
19Gaseous State
A \(10 \mathrm{~g}\) mixture of hydrogen and helium is contained in a vessel of capacity \(0.0125 \mathrm{~m}^{3}\) at 6 bar and \(27^{\circ} \mathrm{C}\). The mass of helium in the mixture is ____________ g. (nearest integer)
Given: $$\mat...
Given: $$\mat...
INTEGER+4 / -12022
20Gaseous State
A rigid nitrogen tank stored inside a laboratory has a pressure of 30 atm at 06:00 am when the temperature is 27\(^\circ\)C. At 03:00 pm, when the temperature is 45\(^\circ\), the pressure in the tank will be _________ atm. [nearest integer...
INTEGER+4 / -12022
21Gaseous State
The pressure of a moist gas at \(27^{\circ} \mathrm{C}\) is \(4 \mathrm{~atm}\). The volume of the container is doubled at the same temperature. The new pressure of the moist gas is ________________ \(\times 10^{-1} \mathrm{~atm}\). (Neares...
INTEGER+4 / -12022
22Gaseous State
A sealed flask with a capacity of 2 dm3 contains 11 g of propane gas. The flask is so weak that it will burst if the pressure becomes 2 MPa. The minimum temperature at which the flask will burst is ___________ \(^\circ\)C. [Nearest integer]...
INTEGER+4 / -12022
23Gaseous State
At 300 K, a sample of 3.0 g of gas A occupies the same volume as 0.2 g of hydrogen at 200 K at the same pressure. The molar mass of gas A is ____________ g mol\(-\)1. (nearest integer) Assume that the behaviour of gases as ideal.
(Given : T...
(Given : T...
INTEGER+4 / -12022
24Gaseous State
Which one of the following is the correct PV vs P plot at constant temperature for an ideal gas? (P and V stand for pressure and volume of the gas respectively)
MCQ+4 / -12021
25Gaseous State
The unit of the van der Waals gas equation parameter 'a' in \(\left( {P + {{a{n^2}} \over {{V^2}}}} \right)(V - nb) = nRT\) is :
MCQ+4 / -12021
26Gaseous State
3.12 g of oxygen is adsorbed on 1.2 g of platinum metal. The volume of oxygen adsorbed per gram of the adsorbent at 1 atm and 300 K in L is __________.[R = 0.0821 L atm K\(-\)1mol\(-\)1]
INTEGER+4 / -12021
27Gaseous State
A certain gas obeys P(Vm \(-\) b) = RT. The value of \({\left( {{{\partial Z} \over {\partial P}}} \right)_T}\) is \({{xb} \over {RT}}\). The value of x is _________. (Integer answer) (Z : compressibility factor)
INTEGER+4 / -12021
28Gaseous State
The interaction energy of London forces between two particles is proportional to rx, where r is the distance between the particles. The value of x is :
MCQ+4 / -12021
29Gaseous State
A home owner uses 4.00 \(\times\) 103 m3 of methane (CH4) gas, (assume CH4 is an ideal gas) in a year to heat his home. Under the pressure of 1.0 atm and 300 K, mass of gas used is x \(\times\) 105 g. The value of x is __________. (Nearest ...
INTEGER+4 / -12021
30Gaseous State
An LPG cylinder contains gas at a pressure of 300 kPa at 27\(^\circ\). The cylinder can withstand the pressure of 1.2 \(\times\) 106 Pa. The room in which the cylinder is kept catches fire. The minimum temperature at which the bursting of c...
INTEGER+4 / -12021
31Gaseous State
A car tyre is filled with nitrogen gas at 35 psi at 27\(^\circ\)C. It will burst if pressure exceeds 40 psi. The temperature in \(^\circ\)C at which the car tyre will burst is _________. (Rounded off to the nearest integer)
INTEGER+4 / -12021
32Gaseous State
The volume occupied by 4.75 g of acetylene gas at 50\(^\circ\)C and 740 mmHg pressure is __________ L. (Rounded off to the nearest integer)[Given R = 0.0826 L atm K\(-\)1 mol\(-\)1]
INTEGER+4 / -12021
33Gaseous State
An empty LPG cylinder weighs 14.8 kg. When full, it weighs 29.0 kg and shows a pressure of 3.47 atm. In the course of use at ambient temperature, the mass of the cylinder is reduced to 23.0 kg. The final pressure inside of the cylinder is _...
INTEGER+4 / -12021
34Gaseous State
The pressure exerted by a non-reactive gaseous mixture of 6.4g of methane and 8.8 g of carbon dioxide in a 10L vessel at 27\(^\circ\)C is __________ kPa. (Round off to the Nearest Integer).[Assume gases are ideal, R = 8.314 J mol\(-\)1 K$$-...
INTEGER+4 / -12021
35Gaseous State
The number of chlorine atoms in 20 mL of chlorine gas at STP is _________ 1021. (Round off to the Nearest Integer).[Assume chlorine is an ideal gas at STPR = 0.083 L bar mol\(-\)1 K\(-\)1, NA = 6.023 \(\times\) 1023]
INTEGER+4 / -12021