The vapour density of a gas is 11.2. The volume occupied by 2.4 g of the gas at S.T.P wil be
2.4 litres
3.6 litres
2.24 litres
11.2 liters
Correct Answer :
D. 11.2 liters
Related Questions
The ratio of RMS velocity to average velocity of a gas molecule at a particular temperature is
1.086:1
1:1.086
2 :1.086
1.086 : 2
The wt. of 2.8 litres of a gas at N.T.P. is 3.50 gms. Its V.D. is
20
28
32
14
Which compound possesses greatest lattice energy?
LiF
NaF
KF
CsF
Volume occupied by 1 gm equivalent of oxygen at NTP is
22.4 litres
2.24 litres
5.6 litres
11.2 litres
In a unit cell of cesium chloride the arrangement of cesium ions is
face centred cubic
hexagonal close packed
body centred cubic
simple cubic
One mole of gas is defined as
The number of molecules in 22.4 litres of gas at S.T.P
The number of molecules contained | in 6 grams of 12 C isotope
The number of molecules in one formula weight of gas
The number of molecules in litre of gas
The weight of 11.2 litres of at S.T.P. would be
22 gms
66 gms
11 gms
16 gms
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 vol. of 20 gm. of hydrogen at N.T.P. is
22.4 litres
112 litres
12 litres
224 litres
Density of a gas relative to air is 2.3. If the average molar mass of air is 29.08/mol, the molecular mass of the gas will be
29 gm/mole
66.7 gm/mole
12.67 gm/mole
25.22 gm/mole
Three dimensional array of points in space is called
unit cell
crystal lattice
micro-crystal
None of these
To which of the following mixtures is the Dalton's law of partial pressures not applicable?
NO +
Xe + Ar
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
An element has atomic weight 24 and equivalent weight 11.9. Its valency is
1
2
3
4
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
The molecular weight of a volatile liquid can be determined by
Dumas' method
Victor Meyer's method
Cryoscopic method
Osmotic pressure
The weight of 22.4 litres of any gas at N.T.P. represent its
gm atomic weight
gm molecular weight
gm equivalent weight
None of these
If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be
XY
7.Which of the following sets of conditions represent the easiest way to liquefy a gas?
Low temperature and high pressure
High temperature and low pressure
High temperature and low pressure
None of these
In the process of sublimation, the substance transforms directly
from the solid state to the liquid state
from the liquid state to gaseous state
from the solid state to gaseous state
from the liquid state to solid state
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 vapour density of ozone would be
72
8
48
24
The number of tetrahedral and octahedral voids per atom in a crystal lattice are, respectively
1,1
2,2
2,1
2,6
Correct gas equation is
If the temperature and pressure remain unchanged the volume of obtained by the decomposition of a certain volume of will be
Triple the volume of
Half the volume of
Equal to the volume of
One third the volume of
The vol. of 20 gms of nitrogen at N.T.P.
16 litres
36 litres
8 litre
32 litres
In a face centred cubic arrangement of ions, the coordination number of ions is
6
8
12
4
A gas or vapour may be liquefied only at a temperature at or
below the critical temperature
above the critical temperature
above the normal boiling point
at any temperature
Which of the following contains the same number of atoms as 12 gms: of Magnesium (Atomic weights : Mg = 24, C = 12, Ca = 40)
10 gms of calcium
20 gms of carbon
20 gms of calcium
12 gms of carbon
The number of molecules in 32 gms of oxygen in
6.02 x
3.2 x
6.02 x
32 x