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
Correct Answer :
C. Equal to the volume of
Related Questions
The ionic radii of and are 0.66 and 1.40 , respectively. The most probable type of gteometry exhibited by MgO on the basis of radius ratio rule is
NaCl type
CsCl type
ZnS type
Boron oxide type
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 a face centred cubic arrangement of ions, the coordination number of ions is
6
8
12
4
What will be the mass of 6.023 x molecules of carbon monoxide?
14 gm
28 gm
16 gm
44 gm
Indicate the most volatile liquid of the following:
The vol. of 20 gm. of hydrogen at N.T.P. is
22.4 litres
112 litres
12 litres
224 litres
The Van der Waal's equation explains the behaviour of
ideal gases
real gases
vapours
non-real gases
Number of molecules of carbon dioxide present in 44 gm is
12 x approximately
3 x approximately
6 x approximately
3 x approximately
The ionic radii of and ions are 1.47 and 1.95 , respectively. The most probable type of geometry exhibited by RbBr on the radius ratio rule is
NaCl type
CsCl type
Zinc blende structure
Wurtzite structure
The pressure of the ideal gas is less than the real gas because of the
increase in the number of collisions
volume occupied by the molecules
inter-molecular attraction
finite size of molecules
In what ratio by mass carbon monoxide and nitrogen should be mixed so that partial pressure exerted by each gas is same?
None of these
The coordination number of each sphere in hcp arrangement is
12
8
6
4
When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules
are above inversion temperature
exert no attractive force on each other
do work equal to loss in kinetic energy
collide without loss of energy
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
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
Which of the following is an example of covalent network solid?
Sodium
Solid carbon dioxide
Sodium chloride
Silicon
At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?
A chalk box exhibits
cubic geometry
monoclinic geometry
orthorhombic geometry
tetragonal
In a solid atoms A are arranged in ccp array. Atoms B occupy all the octahedral voids and half the tetrahedral voids. The formula of the compound is expected to be
Indicate the most viscous liquid of the following
propanol-2
1.2, ethandiol
1.2,3 propentriol
ethanol
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
Which of the following phrases would be incorrect to use?
An atom of an element
An atom of a compound
A molecule of a compound
A molecule of an element
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
The number of atoms in 0.004 gm of magnesium is close to
36x
5 x
6.02 x
Which of the following statement wrong?
In solid state molecules, atoms or ions are held with a strong force of attraction and are in a fixed position
In liquid state the molecules, atom or ions are held with a strong force and have a restricted motion
In gaseous states, the molecules are randomly arranged and are apart from each other
Solid, liquid and gaseous states have different movement is particles
A vessel containing 10 litre of air at atmospheric pressure is connected to an evacuated 9 litre vessel The resulting pressure will be
2 atm
31 atm
0.526 atm
52.6 atm
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
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 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