Related Questions
What is the correct answer?
4
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
What is the correct answer?
4
How many nearest neighbours are there in an atom or ion in an octahedral hole of a close packed structure?
What is the correct answer?
4
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
What is the correct answer?
4
According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain
A. Equal number of electrons
D. Equal number of molecules
What is the correct answer?
4
In the process of sublimation, the substance transforms directly
A. from the solid state to the liquid state
B. from the liquid state to gaseous state
C. from the solid state to gaseous state
D. from the liquid state to solid state
What is the correct answer?
4
A closed vessel contains equal number of molecules of a total pressure at 740 mm. If oxygen is removed from the system the pressure will
D. become double of 740 mm
What is the correct answer?
4
From the Dulong and Petit's law atomic weight is given by which one of the following relations?
What is the correct answer?
4
Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis
What is the correct answer?
4
Of the following properties, the magnitude of one must always increase with temperature. The property is
What is the correct answer?
4
The number of molecules in 32 gms of oxygen in
What is the correct answer?
4
Match box has the symmetry of which of the following systems?
What is the correct answer?
4
Absolute zero is the temperature at which
B. all gases become liquid
C. all substances are solid
D. molecular motion ceases
What is the correct answer?
4
Kinetic theory of gases postulates :
A. The molecules in a gas are in stationary state
B. The molecules in a gas exert appreciable attraction on each other
C. The molecules move in a random motion with widely different velocities
D. The molecules in a gas collide against each other as well as the wall of the container, but do not change their direction of motion
What is the correct answer?
4
The V.D. of a gas is 11.2 gm. The volume occupied by 11.2 gm. of this gas at N.T.P. is
What is the correct answer?
4
22.4 litre of any gas at N.T.P. will contain
B. One gram atomic weight
What is the correct answer?
4
A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will
C. remain unchanged in size
D. have half its volume of the gas
What is the correct answer?
4
In NaCl type structure, the coordination number of the cation and anion are
What is the correct answer?
4
What is the vapour pressure of benzoyl chloride at its boiling point (197°C)?
What is the correct answer?
4
If all the octahedral sites in a cubic close packed arrangement () are completelyfilled with cations, the empirical formula of the compound could then be
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
The relation between molecular wt. and vapour density is
A. Molecular wt. = V.D.
B. Molecular wt. = V.D.
D. Molecualr wt = 2 x V.D.
What is the correct answer?
4
The vol. of 20 gms of nitrogen at N.T.P.
What is the correct answer?
4
The number of atoms per unit cell in simple cubic, face centred cubic and body centred cubic arrangement are, respectively
What is the correct answer?
4
Four 1 litre flasks are separately filled with the gases hydrogen, helium, oxygen and ozone at the same temperature and pressure, the ratio of total number of atoms of these gases present in the different flasks would be
What is the correct answer?
4
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
What is the correct answer?
4
Avogadro stated that under similar conditions of temperature and pressure equal volumes of all gases contain equal number of
What is the correct answer?
4
In a closed packed structure the pattern ABAB...... represents which one of the following:
What is the correct answer?
4
Volume occupied by 4.4 gift of carbon dioxide is
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 number of atoms per unit cell in bcc arrangement is