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The gas that has the slowest rate of diffusion among O2, H2, CO2 and CH4 is:

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Important Questions on States of Matter: Gases and Liquids

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 1>Q 65
If the pressure becomes double at the same absolute temperature on 2 L CO2, then the volume of CO2 becomes:
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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 1
Na+-H2O interaction is _____________the Cl--H2O interaction.
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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 2
The boiling point of H2O is more than that of ONF because of 
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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 3
At what temperature, the sample of neon gas would be heated to double of its pressure, if the initial volume of gas is reduced by 15 % at 75 ºC?
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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 4
The pressure of a real gas is less than the pressure of an ideal gas because of _____.
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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 5
 A gas can be easily liquefied __________________ 
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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 6
A bubble of air is underwater at temperature 15°C and the pressure 1.5 bar. If the bubble rises to the surface where the temperature is 25°C and the pressure is 1.0 bar, what will happen to the volume of the bubble?                                  [CBSE PMT 2011] 
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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 7
The dominance of the strong repulsive forces among the molecules of the gas (z=compressibility factor)                                         [AIIMS 2006]