Chemistry - Chemical Bonding
MCQS
A. N2
B. CO
C. O2
D. H2
Nitrogen (N2) exhibits a triple covalent bond.
A. Covalent
B. Ionic
C. Metallic
D. Polar
Covalent bonds involve the sharing of electrons between nonmetals.
A. Metal to nonmetal
B. Nonmetal to metal
C. Metal to metal
D. Nonmetal to nonmetal
Electrons are transferred from a metal to a nonmetal in ionic bonds.
A. Gain or lose electrons to achieve a full outer shell
B. Share electrons to achieve a half-filled outer shell
C. Share electrons to achieve a full outer shell
D. Lose electrons to achieve a half-filled outer shell
Atoms gain or lose electrons to achieve a full outer shell, following the octet rule.
A. Ionic
B. Covalent
C. Metallic
D. Polar
Ionic bonds result from the attraction between oppositely charged ions.
A. Nonpolar covalent
B. Polar covalent
C. Ionic
D. Metallic
Nonpolar covalent bonds involve equal sharing of electrons.
A. Ability to attract electrons
B. Ability to lose electrons
C. Nuclear charge
D. Atomic size
Electronegativity measures an atom's ability to attract electrons.
A. HCl
B. O2
C. N2
D. F2
HCl has a polar covalent bond between hydrogen and chlorine.
A. 104.5°
B. 120°
C. 180°
D. 90°
The bond angle in a water molecule is approximately 104.5 degrees.
A. Sigma
B. Pi
C. Delta
D. Theta
Sigma bonds result from the head-to-head overlap of atomic orbitals.
A. Fluorine
B. Oxygen
C. Nitrogen
D. Chlorine
Fluorine has the highest electronegativity.
A. Covalent
B. Ionic
C. Metallic
D. Polar
The bond in methane (CH4) is covalent, involving the sharing of electrons.
A. Hydrogen bond
B. Ionic bond
C. Covalent bond
D. Metallic bond
Hydrogen bonds form between hydrogen and highly electronegative atoms.
A. Polar covalent
B. Nonpolar covalent
C. Ionic
D. Metallic
Polar covalent bonds have unequal electron sharing due to electronegativity differences.
A. Two
B. One
C. Three
D. Four
A double covalent bond involves the sharing of two pairs of electrons.
A. Tetrahedral
B. Linear
C. Trigonal planar
D. Octahedral
A molecule with tetrahedral electron domain geometry has a tetrahedral shape.
A. Metallic
B. Ionic
C. Covalent
D. Polar
Metallic bonds result from the attraction between positive metal ions and a sea of electrons.
A. O2
B. HCl
C. Cl2
D. NH3
Cl2 has a nonpolar covalent bond due to identical atoms.
A. Triple bond
B. Double bond
C. Single bond
D. Quadruple bond
Nitrogen (N2) is represented by a triple covalent bond in its Lewis structure.
A. Polar
B. Nonpolar
C. Ionic
D. Metallic
Polar molecules have an unequal distribution of electron density.
A. Ionic
B. Covalent
C. Metallic
D. Polar
Sodium chloride (NaCl) exhibits an ionic bond.
A. Linear
B. Trigonal planar
C. Tetrahedral
D. Bent
A molecule with linear electron domain geometry has a linear shape.
A. H2O
B. CO2
C. NH3
D. CH4
H2O has a bent shape due to the lone pairs on the central oxygen atom.
A. 120°
B. 109.5°
C. 180°
D. 90°
The bond angle in a trigonal planar molecule is approximately 120 degrees.
A. Nonpolar covalent
B. Polar covalent
C. Ionic
D. Metallic
Nonpolar covalent bonds result from atoms with identical electronegativities.
A. 109.5°
B. 120°
C. 180°
D. 90°
The bond angle in a tetrahedral molecule is approximately 109.5 degrees.
A. Nonpolar covalent
B. Polar covalent
C. Ionic
D. Metallic
Nonpolar covalent bonds involve equal sharing of electrons between identical atoms.
A. Trigonal bipyramidal
B. Octahedral
C. Linear
D. T-shaped
A molecule with trigonal bipyramidal electron domain geometry has a trigonal bipyramidal shape.
A. Polar covalent
B. Nonpolar covalent
C. Ionic
D. Metallic
Polar covalent bonds result from a significant electronegativity difference in shared electrons.
A. Four single bonds
B. One double bond
C. One triple bond
D. One quadruple bond
Methane (CH4) is represented by four single covalent bonds in its Lewis structure.
A. Dipole-dipole
B. London dispersion
C. Metallic
D. Ionic
Dipole-dipole bonds result from the attraction between polar molecules.
A. 109.5°
B. 120°
C. 180°
D. 90°
The bond angle in a bent molecule is typically less than 109.5 degrees.
A. Pi
B. Sigma
C. Delta
D. Theta
Pi bonds involve the overlapping of p orbitals.
A. Trigonal pyramidal
B. Linear
C. Tetrahedral
D. Bent
A molecule with trigonal pyramidal electron domain geometry has a trigonal pyramidal shape.
A. One single bond and two double bonds
B. One single bond and two triple bonds
C. Three single bonds
D. One double bond and two single bonds
Nitrogen trifluoride (NF3) is represented by three single covalent bonds in its Lewis structure.
A. Metallic
B. Ionic
C. Covalent
D. Polar
Metallic bonds result from the attraction between positive metal ions and delocalized electrons.
A. 180°
B. 120°
C. 90°
D. 109.5°
A linear molecule has a bond angle of 180 degrees.
A. London dispersion
B. Ionic
C. Covalent
D. Dipole-dipole
London dispersion forces result from temporary dipoles in adjacent atoms.
A. Seesaw
B. Linear
C. Trigonal planar
D. T-shaped
A molecule with seesaw electron domain geometry has a seesaw shape.
A. Molecular shapes
B. Bond strengths
C. Electron affinities
D. Ionization energies
VSEPR theory predicts molecular shapes based on electron domain geometry.
A. Ionic
B. Covalent
C. Metallic
D. Polar
Ionic bonds involve the transfer of electrons between atoms.
A. 120°
B. 109.5°
C. 180°
D. 90°
The bond angle in a trigonal bipyramidal molecule is approximately 90 degrees.
A. Two single bonds
B. One double bond
C. One triple bond
D. Three single bonds
Carbon dioxide (CO2) is represented by one double covalent bond in its Lewis structure.
A. Nonpolar covalent
B. Polar covalent
C. Ionic
D. Metallic
Nonpolar covalent bonds involve identical atoms sharing electrons.
A. 109.5°
B. 120°
C. 180°
D. 90°
The bond angle in a tetrahedral molecule is approximately 109.5 degrees.
A. CO2
B. H2O
C. NH3
D. SO2
Carbon dioxide (CO2) has a linear shape without lone pairs on the central carbon atom.
A. Octahedral
B. Linear
C. Tetrahedral
D. Square planar
A molecule with octahedral electron domain geometry has an octahedral shape.
A. Nonpolar covalent
B. Polar covalent
C. Ionic
D. Metallic
Nonpolar covalent bonds involve no difference in electronegativity.
A. Two single bonds
B. One double bond
C. One triple bond
D. Two double bonds
Water (H2O) is represented by two single covalent bonds in its Lewis structure.
A. Dipole-dipole
B. London dispersion
C. Metallic
D. Ionic
Dipole-dipole bonds involve the attraction between polar molecule ends.
A. 107°
B. 120°
C. 180°
D. 90°
The bond angle in a trigonal pyramidal molecule is approximately 107 degrees.
A. Polar covalent
B. Nonpolar covalent
C. Ionic
D. Metallic
Polar covalent bonds involve a slight difference in electronegativity.
A. Square pyramidal
B. Octahedral
C. Linear
D. Square planar
A molecule with square pyramidal electron domain geometry has a square pyramidal shape.
A. O3
B. N2
C. CO2
D. SO2
Ozone (O3) exhibits resonance structures due to delocalization of electrons.
A. 120°
B. 109.5°
C. 180°
D. 90°
The bond angle in a seesaw molecule is approximately 180 degrees.
A. Hydrogen bond
B. London dispersion
C. Metallic
D. Ionic
Hydrogen bonds result from the attraction between positive and negative ends of molecules.
A. One single bond and two double bonds
B. One single bond and two triple bonds
C. Three single bonds
D. One double bond and two single bonds
Nitrogen trifluoride (NF3) is represented by three single covalent bonds in its Lewis structure.
A. Polar covalent
B. Nonpolar covalent
C. Ionic
D. Metallic
Polar covalent bonds involve a significant electronegativity difference.
A. 90°
B. 120°
C. 180°
D. 90°
The bond angle in a square planar molecule is approximately 90 degrees.
A. SO3
B. CH4
C. H2O
D. CO2
Sulfur trioxide (SO3) exhibits resonance structures due to delocalization of electrons.
A. Linear
B. Trigonal planar
C. Tetrahedral
D. Bent
A molecule with linear electron domain geometry has a linear shape.
A. Hydrogen bond
B. London dispersion
C. Metallic
D. Ionic
Hydrogen bonds involve the attraction between hydrogen and a nearby lone pair of electrons.
A. 109.5°
B. 120°
C. 180°
D. 90°
The bond angle in a bent molecule is typically less than 109.5 degrees.
A. Ionic
B. Covalent
C. Metallic
D. Polar
Ionic bonds occur between oppositely charged ions in a crystal lattice.
A. Square planar
B. Octahedral
C. Linear
D. Square pyramidal
A molecule with square planar electron domain geometry has a square planar shape.