Related Questions
What is the correct answer?
4
20 litres of hydrogen gas weighs about
What is the correct answer?
4
One mole of gas is defined as
A. The number of molecules in 22.4 litres of gas at S.T.P
B. The number of molecules contained | in 6 grams of 12 C isotope
C. The number of molecules in one formula weight of gas
D. The number of molecules in litre of gas
What is the correct answer?
4
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
What is the correct answer?
4
If the temperature and pressure remain unchanged the volume of obtained by the decomposition of a certain volume of will be
A. Triple the volume of
B. Half the volume of
C. Equal to the volume of
D. One third the volume of
What is the correct answer?
4
Which compound possesses greatest lattice energy?
What is the correct answer?
4
In a close packed arrangement of N spheres, the number of octahedral holes are
What is the correct answer?
4
The weight of 22.4 litres of any gas at N.T.P. represent its
What is the correct answer?
4
Cubic close packed arrangement of ions is described as
What is the correct answer?
4
Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by methane is
What is the correct answer?
4
The weight of 11.2 litres of at S.T.P. would be
What is the correct answer?
4
At what temperature, the root mean square velocity of oxygen molecules is equal to that of at 27°C?
What is the correct answer?
4
Lattice energy of a solid is high if
A. the radii of the ions are large
B. radii of the ions are small
C. charge on the ions are small
What is the correct answer?
4
To which of the following mixtures is the Dalton's law of partial pressures not applicable?
What is the correct answer?
4
The electrical conductivity of metals is of the order of
What is the correct answer?
4
22.4 litres of at 27.3°C and 1 atmosphere pressure shall weigh
What is the correct answer?
4
The number of tetrahedral and octahedral voids per atom in a crystal lattice are, respectively
What is the correct answer?
4
In anti-fluorite structure the negative ions
A. occupy tetrahedral voids
B. occupy octahedral voids
What is the correct answer?
4
Chloroform and benzene form a pair of miscible liquids. These can be separated by
What is the correct answer?
4
Which of the following phrases would be incorrect to use?
C. A molecule of a compound
D. A molecule of an element
What is the correct answer?
4
The radii of and are 95 pm and 181 pm respectively. Coordination number of is expected to be
What is the correct answer?
4
The number of atoms per unit cell in bcc arrangement is
What is the correct answer?
4
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure:
What is the correct answer?
4
What will be the mass of 6.03 x molecules of carbon monoxide ?
What is the correct answer?
4
The number of atoms in 0.004 gm of magnesium is close to
What is the correct answer?
4
The limiting radii ratio for the tetrahedral geometry is
What is the correct answer?
4
How many nearest neighbours are there in an octahedral hole of a close packed structure
What is the correct answer?
4
In zinc blende structure, the zinc atoms occupy
C. half of the octahedral sites
D. half of the tetrahedral sites
What is the correct answer?
4
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
What is the correct answer?
4
When there is more deviation in the behaviour of a gas from ideal gas equation PV = nRT
A. at high temperature and low pressure
B. at low temperature and high pressure
C. at high temperature and high pressure
D. at low temperature and low pressure
What is the correct answer?
4
The vapour density of completely dissociated sociated would be
A. Determined by the amount of solid used in the experiment
B. Triple to that of
D. Slightly less than half of that of