Gaseous State


Previous Years Questions

MCQ (Single Correct Answer)

Choose the correct option for the total pressure (in atm.) in a mixture of 4g O2 and 2g H2 confined in a total volume of...
NEET 2021
Choose the correct option for graphical representation of Boyle's law, which shows a graph of pressure vs. volume of a g...
NEET 2021
A mixture of N2 and Ar gases in a cylinder contains 7g of N2 and 8g of Ar. If the total pressure of the mixture of the g...
NEET 2020 Phase 1
A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The ...
NEET 2019
Given van der Waals’ constant for NH3 , H2, O2 and CO2 are respectively 4.17, 0.244, 1.36 and 3.59, which one of the f...
NEET 2018
The correction factor ‘a’ to the ideal gas equation corresponds to
NEET 2018
Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What f...
NEET 2016 Phase 1
A gas such as carbon monoxide would be most likely to obey the ideal gas law at
AIPMT 2015
Maximum deviation from ideal gas is expected from
NEET 2013
What is the density of N2 gas 227oC and 5.00 atm. pressure? (R = 0.082 L atm K$$-$$1 mol$$-$$1)...
NEET 2013 (Karnataka)
Equal volumes of two monoatomic gases, A and B at same temperature and pressure are mixed. The ratio of specific heats (...
AIPMT 2012 Mains
For real gases van der Waals equation is written as $$\left( {p + {{a{n^2}} \over {{V^2}}}} \right)$$ (V $$-$$ nb) = n R...
AIPMT 2012 Mains
A certain gas takes three times as long to effuse out as helium. Its molecular mass will be
AIPMT 2012 Mains
50 mL of each gas A and of gas B takes 150 and 200 seconds respectively for effusing through a pin hole under the simila...
AIPMT 2012 Prelims
In Duma's method of estimation of nitrogen 0.35 g of an organic compound gave 55 mLof nitrogen collected at 300 K temper...
AIPMT 2011 Prelims
Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 seconds respectively. The molec...
AIPMT 2011 Prelims
A gaseous mixture was prepared by taking equal mole of CO and N2. If the total pressure of the mixture was found 1 atmos...
AIPMT 2011 Prelims
A bubble of air is underwater at temperature 15oC and the pressure 1.5 bar. If the bubble rises to the surface where the...
AIPMT 2011 Mains
By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled ?
AIPMT 2011 Prelims
The pressure exerted by 6.0 g of methane gas in a 0.03 m3 vessel at 129oC is (Atomic masses : C = 12.01, H = 1.01 and ...
AIPMT 2010 Mains
The energy absorbed by each molecule (A2) of a substance is 4.4 $$ \times $$ 10$$-$$19 J and bond energy per molecule is...
AIPMT 2009
Volume occupied by one molecule of water (density = 1 g cm$$-$$3) is
AIPMT 2008
If a gas expands at constant temperature, it indicates that
AIPMT 2008
Van der Waal's real gas, acts as an ideal gas, at which conditions?
AIPMT 2002
The beans are cooked earlier in pressure cooker because
AIPMT 2001
Which of the following expressions correctly represents the relationship between the average molar kinetic energy, KE, o...
AIPMT 2000

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Class 12