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This Test Contains Questions from Chapter 4 CHEMISTRY.
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which of the following represents the cubic crystals:
diamond and graphite allotropes of carbon it follows that they
hydrocarbons which generally have high molecular masses can exist in
instantaneous induced dipole is reacted on an atom by
the number of atoms/molecules contained in one face centered cubic unit cell of mono-atomic substances is
which of the liquid has strong intermolecular forces contained in it
when water freezes its volume increases because of
londons forces are present
diamond is abad conductor because
what is the ratio between strength of covalent bond and dipole –dipole forces
which one of the molecule has weakest intermolecular forces
Which one of the following hydride has low boiling point from the hydrides :
vapour pressure does not depend
bubbles in the interior of liquid come out due to
what is the difference between the vapour pressure of H2O and diethyl ether at 0C in torr
which one of the following is insoluble in polar and non polar solvents
in a crystal the atoms are located at the position of
the lattice site of I2 contains
water can boil at 0C when external pressure would be in torr:
for intermolecular forces there is responsible
if bond energy of H-A bond is 160kj/mol then energy of hydrogen bond in this sample
Which of the following factor is not involved in the strength of hydrogen bonding
A phenomenon which is a necessary evil
a liquid whose thermodynamic property does not depend on intermolecular forces
dynamic equilbrium can be establish for water at normal external pressure
Cleavage planes are
Ionic solids are brittle due to
Graphite shows anisotropy because
the prescence of ionic salt in liquid
in a body centered cubic cell ,an atom at the body of centre is shared by
close packing is maximum in the crystal
In the graphite carbon atoms are hybridized
wax is an example of
The structure of MgO is similar to NaCl. The coordination number of Mg is
which of the following solid consist of discrete molecules
Many metals show superconductivity at
which of the following has high heat and electrical conductivity
how many Cl ions are present at faces in face centered cubic unit cell
The bond length of crystalline solid is maximum at room temperature in
Transition temperature of allotropic forms is __________ than melting point
wax is an example of
A certain metal crystallizes in a simple cubic structure .at a certain temperature it arranges to give a body centered structure .in this transition the density of metal
A pressure cooker reduces cooking time because
nature of I2 crystals are
The number of Cl ions per unit cell in NaCl
water is a wetting liquid it is due to
Following properties will decrease with increase of temperature except
acetone and chloroform are soluble in each other due to
the boiling point increases down the zero group element due to
evaporation of water is possible at
a liquid can be made to boil between its freezing point and
hydrogen bonding involves in
crystalline solids do not have
when external pressure is 23.7torr the boiling water is
coordination number of Cs in CsCl is
which one of the following liquid has low vapour pressure at 25C
water has maximum density at
which one of the following does not showhydrogen bonding
which one of the following crystal has max lattice energy
metallic structure is
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