#1
Which type of bond involves the sharing of electrons between atoms?
Covalent bond
ExplanationElectrons are shared between atoms in a covalent bond.
#2
What is the total number of valence electrons in an atom of oxygen?
6
ExplanationOxygen has 6 valence electrons.
#3
Which type of bond is formed between a metal and a nonmetal?
Ionic bond
ExplanationIonic bond is formed between a metal and a nonmetal.
#4
What is the shape of a molecule with a tetrahedral electron geometry and no lone pairs?
Tetrahedral
ExplanationMolecule with tetrahedral electron geometry and no lone pairs has a tetrahedral shape.
#5
Which of the following molecules has a trigonal bipyramidal molecular geometry?
SF6
ExplanationSF6 has a trigonal bipyramidal molecular geometry.
#6
What is the bond angle in a molecule with a linear molecular geometry?
180°
ExplanationA molecule with linear molecular geometry has a bond angle of 180°.
#7
What is the bond angle in a water molecule (H2O)?
109.5°
ExplanationThe bond angle in a water molecule (H2O) is 109.5°.
#8
Which type of bond is formed between two atoms of the same element with identical electronegativity?
Covalent bond
ExplanationCovalent bond is formed between atoms with the same electronegativity.
#9
Which of the following molecules has a trigonal pyramidal shape?
NH3
ExplanationNH3 has a trigonal pyramidal shape.
#10
What is the main type of bond present in a sodium chloride (NaCl) crystal?
Ionic bond
ExplanationIonic bond is the main type of bond in a sodium chloride (NaCl) crystal.
#11
In a polar covalent bond, electrons are shared _____.
Unequally between the atoms
ExplanationElectrons in a polar covalent bond are shared unevenly between the atoms.
#12
Which of the following molecules has a nonpolar covalent bond?
CO2
ExplanationCO2 has nonpolar covalent bonds.
#13
Which of the following molecules exhibits hydrogen bonding?
H2O
ExplanationH2O exhibits hydrogen bonding.
#14
What is the term for a covalent bond formed by the sharing of two pairs of electrons?
Double bond
ExplanationA covalent bond formed by sharing two pairs of electrons is a double bond.
#15
Which of the following substances exhibits metallic bonding?
Fe
ExplanationFe exhibits metallic bonding.
#16
What type of bond is present in a molecule of methane (CH4)?
Covalent bond
ExplanationMethane (CH4) has covalent bonds.
#17
What is the term for a bond in which one atom donates both electrons to be shared with another atom?
Coordinate covalent bond
ExplanationA bond where one atom donates both electrons for sharing is a coordinate covalent bond.
#18
Which of the following molecules exhibits London dispersion forces?
Cl2
ExplanationCl2 exhibits London dispersion forces.
#19
What is the term for a bond in which electrons are shared equally between two atoms?
Nonpolar covalent bond
ExplanationA bond where electrons are shared equally is a nonpolar covalent bond.
#20
What is the term for the electrostatic attraction between oppositely charged ions?
Ionic bond
ExplanationIonic bond involves the attraction between oppositely charged ions.
#21
Which type of intermolecular force occurs between nonpolar molecules?
London dispersion forces
ExplanationLondon dispersion forces occur between nonpolar molecules.
#22
Which of the following molecules exhibits dipole-dipole interactions?
H2O
ExplanationH2O exhibits dipole-dipole interactions.
#23
What is the main type of intermolecular force present in a sample of diatomic nitrogen gas (N2)?
London dispersion forces
ExplanationThe main intermolecular force in diatomic nitrogen gas (N2) is London dispersion forces.
#24
Which of the following molecules exhibits ion-dipole interactions?
NaCl
ExplanationNaCl exhibits ion-dipole interactions.