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1.
Quartz is a crystalline variety of
2.
A sample of gas at 
and 1 atmospheric pressure occupies a volume of 
At what temperature should the gas be kept, if it is required to reduce the volume to 
litre at the same pressure?
and 1 atmospheric pressure occupies a volume of At what temperature should the gas be kept, if it is required to reduce the volume to litre at the same pressure?
3.
Air at sea level is dense. This is a practical application of:
4.
The strength of van der Waals' forces increases with:
5.
The vacant space in the bcc unit cell is
6.
Pressure remaining constant, the volume of a given sample of gas at 
will be doubled at:
will be doubled at:
7.
The numerical value of 
the van der Waals' constant is maximum for:
the van der Waals' constant is maximum for:
8.
To which of the following gaseous mixtures is Dalton's law not applicable?
9.
At critical temperature of a liquid, surface tension is
10.
The rms speed of hydrogen is 
times the rms speed of nitrogen. If 
is the temperature of the gas, then
times the rms speed of nitrogen. If is the temperature of the gas, then