Q.1
In a water molecule, which atom(s) has/have a partial negative charge?
  • Oxygen
  • Hydrogen
  • None of the atoms
  • All of the atoms
Q.2
How do you define electronegativity?
  • Measure of the tendency of an atom to attract a bonding pair of electrons
  • Measure of the tendency of an atom to repel a bonding pair of electrons
  • Measure of the attractive force between hydrogen and a neighbouring atom
  • Measure of the amount of sharing capability of electrons
Q.3
Which is the most electronegative atom?
  • Helium
  • Fluorine
  • Chlorine
  • Iodine
Q.4
True or false:A hydrogen bond forms a stronger chemical bond than a covalent bond.
  • True
  • False
Q.5
Which of the following geometries could be nonpolar?
  • bent
  • tetrahedral
  • trigonal pyrimidal
  • none of the above
Q.6
Which of these is not an intermolecular force?
  • covalent bonding
  • hydrogen bonding
  • Van Der Waals forces
  • dipole-dipole forces
Q.7
In general, substances with stronger intermolecular forces have ________ boiling points than those with weaker forces
  • Higher
  • Lower
  • The same
Q.8
A molecule containing polar covalent bonds is always polar.
  • True
  • False
Q.9
Which of the following molecules, based on the elements present, would be most polar?
  • HF
  • H2
  • HCl
  • HBr
Q.10
Which formula represents a nonpolar molecule?
  • HBr
  • H2S
  • CBr4
  • PCl3
Q.11
Intermolecular force present in Cl2?
  • dipole dipole
  • H-bond
  • Van Der Waals forces
  • metallic
Q.12
Which is the second strongest intermolecular force, after hydrogen bonding?
  • dipole-dipole attraction
  • Wan Der Waals forces
Q.13
Which noble gas has the highest boiling point?
  • Xe
  • Kr
  • Ar
  • He
Q.14
Intermolecular force present in CHF3
  • H bond
  • dipole dipole
  • Wan Der Waals forces
  • ionic
Q.15
Intermolecular forces are the forces
  • within molecules
  • between molecules
Q.16
Intermolecular force present in HCl?
  • dipole dipole
  • Van Der Waals forces
  • H-bond
  • ionic
Q.17
What is considered a Hydrogen Bond?
  • H-Pb
  • H-Fe
  • H-O
  • All of the above
Q.18
What explains the very high melting and boiling point of water
  • Strong dipole-dipole bonds between water molecules
  • Strong hydrogen bonds between water molecules
  • Dispersion forces which are present in all molecules
  • Asymmetrical shape of the polar bonds.
Q.19
The bond created by the electrostatic attraction between metal cations and non-metal anions
  • Hydrogen bonding
  • Covalent bonding
  • Ionic Bonding
  • Dipole-dipole forces
  • Metallic bonding
Q.20
The bond created when the difference in electronegativity between two atoms is greater than 1.8
  • Hydrogen bond
  • Non-polar covalent bond
  • Ionic bond
  • Polar covalent bond
  • Metallic bond
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