22.4 litre of any gas at N.T.P. will contain
One gram equivalent
One gram atomic weight
One gram atom
One gram molecule
Correct Answer :
D. One gram molecule
Related Questions
The vapour density of completely dissociated sociated would be
Determined by the amount of solid used in the experiment
Triple to that of
Half of that
Slightly less than half of that of
Which of the following should be most viscous?
The radii of and are 95 pm and 181 pm respectively. Coordination number of is expected to be
8
6
4
3
A liquid of density 1.742 g is observed to show a capillary rise of 73 mm in a tube of radius 0.65 mm. Then the surface tension of the liquid is
4.1 x dynes
4.1 x dynes
7.1 x dynes
None of these
At a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volumes of C, and 1 volume of A combines with one volume of B to form 2 volumes of D. Then the formula of C is
In a dose packed arrangement of N spheres, the number of tetrahedral holes are
N
2N
N/2
Boltzmann constant is given by
R
R+N
R:N
R-N
In a face centred cubic arrangement of ions, the coordination number of ions is
6
8
12
4
Absolute zero is the temperature at which
water freezes
all gases become liquid
all substances are solid
molecular motion ceases
In a close packed arrangement of N spheres, the number of octahedral holes are
N
2N
4N
8N
How many moles of water are present in 180 gm. of water ?
11
5
90
21
In the wurtzite structure sulphur atoms have
cubic arrangement
hexagonal dose packed arrangement
body centred arrangement
None of these
Molecular formula of D in the above case is
AB
At what temperature, the root mean square velocity of oxygen molecules is equal to that of at 27°C?
150°C
150°K
27°C
None of these
Which of the following is an example of covalent network solid?
Sodium
Solid carbon dioxide
Sodium chloride
Silicon
In zinc blende structure, the zinc atoms occupy
all tetrahedral sites
all octahedral sites
half of the octahedral sites
half of the tetrahedral sites
The space occupied by spheres in ccp arrangement is
74.06%
68.05%
60.4%
52.4%
In the ideal gas equation PV = nRT constant 'R' has the unit
joule
litre/mol
lit-atm/deg/mol
calorie/mole
Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis
1.12 litres
2.24 litres
22.4 litres
11.2 litres
All gases tend to show ideal behaviour
at low temperature and low pressure
at high temperature and high pressure
at high temperature and low pressure
at low temperature and high pressure
The number of molecules in 4.25 gm of ammonia are approximately
In a unit cell of cesium chloride the arrangement of cesium ions is
face centred cubic
hexagonal close packed
body centred cubic
simple cubic
Gases deviate from the ideal behaviour because their molecules
possess negligible volume
have forces of attraction between them
are polyatomic
are not attracted to one another
In fluorite structure coordination number of calcium ions is
4
6
8
3
The mean free path of a gas molecule is the distance
between the two opposite walls of the container
through which the molecules travel in one second
through which molecules move between two consecutive collisions
travelled by all the molecules divided by the total number of molecules in a particular gas
The number of molecules is 4.25 g of ammonia are approximately
3.5 x
2.5 x
1.5 x
0.5 x
How many nearest neighbours are there in an atom or ion in an octahedral hole of a close packed structure?
4
6
8
18
According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain
Equal number of electrons
Equal number of ions
Equal number of atoms
Equal number of molecules
Avogadro stated that under similar conditions of temperature and pressure equal volumes of all gases contain equal number of
atoms
molecules
electrons
ions
The average kinetic energy of the molecule of (moL wt. = 64) at 27°C is E. Then the average kinetic energy of at 27°C is
E
22E