Chemical Bonding: Interactive Quizzes and Practice Questions

Question 1

Ionic bonds are formed between atoms with a large difference in electronegativity. Which of the following compounds is formed by an ionic bond?

Accepted Answer

NaCl

Answer

CH4

Answer

H2O

Answer

CO2

Question 2

Polarity is a measure of the uneven distribution of electrons within a molecule. Which of the following molecules is polar?

Accepted Answer

H2O

Answer

CO2

Answer

CH4

Answer

N2

Question 3

Lewis acids and bases are substances that can donate or accept electron pairs, respectively. Which of the following is a Lewis acid?

Accepted Answer

BF3

Answer

NH3

Answer

H2O

Answer

OH-

Question 4

Identify a characteristic that does NOT apply to ionic bonds.

Accepted Answer

Result in the formation of molecular rather than crystalline compounds

Answer

Strong electrostatic attraction between oppositely charged ions

Answer

Formed between atoms with significant differences in electronegativity

Answer

Produce crystalline solids with high melting points

Question 5

The strength of a covalent bond is primarily determined by:

Accepted Answer

A combination of all the above factors

Answer

The number of shared electron pairs

Answer

The electronegativity difference between the bonded atoms

Answer

The distance between the bonded atoms

Question 6

Metallic bonding is characterized by:

Accepted Answer

Electrostatic attraction between positively charged metal ions and a sea of mobile electrons

Answer

The sharing of electrons between metal atoms

Answer

The formation of covalent bonds between metal atoms

Answer

The transfer of electrons from metal atoms to non-metal atoms

Question 7

Electronegativity of an atom refers to its:

Accepted Answer

Ability to attract electrons towards itself

Answer

Tendency to lose electrons easily

Answer

Ionization energy

Answer

Electron affinity

Question 8

The hybridization of the carbon atom in methane (CH₄) is:

Accepted Answer

sp³

Answer

sp

Answer

sp²

Answer

sp³d

Question 9

Which characteristic listed is NOT true about ionic bonding?

Accepted Answer

Results in the formation of molecular compounds

Answer

Formed when one atom transfers electrons to another atom

Answer

Typically results in compounds with high melting and boiling points

Answer

Produces compounds that are generally soluble in polar solvents

Question 10

Which type of bond results from the sharing of one or more electron pairs between atoms?

Accepted Answer

Covalent

Answer

Ionic

Answer

Metallic

Answer

Hydrogen

Question 11

Which of the following molecules is predicted to exhibit non-polar covalent bonds?

Accepted Answer

CH4

Answer

HCl

Answer

H2O

Answer

NH3

Question 12

Which factor does NOT influence the strength of a covalent bond?

Accepted Answer

Mass of the atoms involved

Answer

Number of shared electron pairs between atoms

Answer

Length of the bond between the atoms

Answer

Electronegativity of the atoms involved

Question 13

How does resonance contribute to the stability of benzene (C6H6) compared to other cyclic hydrocarbons?

Accepted Answer

Resonance spreads out the pi electrons, lowering the molecule's energy.

Answer

Resonance makes the molecule more polar, increasing its reactivity.

Answer

Resonance strengthens the bonds in the molecule, making it more rigid.

Question 14

What is the hybridization of the carbon atom in methane (CH₄)?

Accepted Answer

sp³

Answer

sp

Answer

sp²

Answer

sp³d

Question 15

Which type of bond is generally the strongest?

Accepted Answer

Ionic bond

Answer

Covalent bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 16

What is the Lewis structure of carbon dioxide (CO₂)?

Accepted Answer

O=C=O

Answer

O-C-O

Answer

C=O-O

Answer

C-O-O

Question 17

Which of the following interactions is mainly responsible for the high melting point of metals?

Accepted Answer

Metallic bonding

Answer

Ionic bonding

Answer

Covalent bonding

Answer

Hydrogen bonding

Question 18

Which of the following molecules is considered a resonance hybrid?

Accepted Answer

Benzene

Answer

Ethene

Answer

Methane

Answer

Water

Question 19

Which of the following is NOT a type of chemical bond?

Accepted Answer

Dipole-dipole

Answer

Ionic

Answer

Covalent

Answer

Metallic

Question 20

What is the defining feature of an ionic bond?

Accepted Answer

Transfer of electrons between atoms

Answer

Sharing of electrons between atoms

Answer

Interaction between a metal and a nonmetal

Answer

Attraction between two polar molecules

Question 21

Which of the following molecules has a nonpolar covalent bond?

Accepted Answer

CH4

Answer

HCl

Answer

NH3

Answer

H2O

Question 22

What is the hybridization of the central atom in SF6?

Accepted Answer

sp3d2

Answer

sp

Answer

sp2

Answer

sp3

Question 23

Which of the following molecules has a tetrahedral molecular geometry?

Accepted Answer

CH4

Answer

NH3

Answer

H2O

Answer

CO2

Question 24

What is the bond order of the triple bond in ethyne (C2H2)?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 25

What is the hybridization of the nitrogen atom in the ammonium ion (NH4+)?

Accepted Answer

sp3

Answer

sp

Answer

sp2

Answer

sp3d

Question 26

Which of the following pairs of elements are most likely to form an ionic bond, characterized by a significant difference in electronegativity?

Accepted Answer

Sodium and chlorine

Answer

Hydrogen and oxygen

Answer

Carbon and carbon

Answer

Nitrogen and nitrogen

Question 27

In a covalent bond, the electrons involved in the bond belong to:

Accepted Answer

Both atoms equally

Answer

Only one of the atoms

Answer

Neither atom

Answer

An equal number of protons and electrons

Question 28

Which of the following factors does NOT affect bond strength?

Accepted Answer

Atomic number

Answer

Bond length

Answer

Bond order

Answer

Electronegativity difference

Question 29

A bond with high polarity but low bond order is likely to be:

Accepted Answer

Ionic

Answer

Covalent

Answer

Metallic

Answer

Hydrogen

Question 30

Which of the following is a resonance hybrid?

Accepted Answer

Benzene

Answer

Carbon dioxide

Answer

Water

Answer

Sodium chloride

Question 31

In a polar covalent bond, the more electronegative atom has:

Accepted Answer

A partial negative charge

Answer

A partial positive charge

Answer

A neutral charge

Answer

A full positive charge

Question 32

Which of the following hybridization types results in a tetrahedral molecular geometry?

Accepted Answer

sp3

Answer

sp

Answer

sp2

Answer

sp3d

Question 33

The enthalpy change associated with bond formation is typically:

Accepted Answer

Negative

Answer

Positive

Answer

Zero

Answer

Variable

Question 34

Which of the following is NOT a type of chemical bond?

Accepted Answer

Plasma bond

Answer

Ionic bond

Answer

Covalent bond

Answer

Metallic bond

Question 35

Which bond is formed by the strong electrostatic attraction between oppositely charged ions?

Accepted Answer

Ionic bond

Answer

Metallic bond

Answer

Covalent bond

Answer

Hydrogen bond

Question 36

In a covalent bond, electrons are:

Accepted Answer

Shared between atoms

Answer

Transferred completely from one atom to another

Answer

Localized on a single atom

Answer

Not involved in bonding

Question 37

Which of the following elements is most likely to form metallic bonds?

Accepted Answer

Potassium

Answer

Carbon

Answer

Fluorine

Answer

Chlorine

Question 38

The molecular geometry of a molecule with a trigonal planar electron pair geometry is:

Accepted Answer

Trigonal planar

Answer

Octahedral

Answer

Tetrahedral

Answer

Bent

Question 39

Which of the following is a resonance structure?

Accepted Answer

A molecule that can be represented by multiple valid Lewis structures

Answer

A molecule with a high energy state

Answer

A molecule with a unique Lewis structure

Question 40

The hybridization of the nitrogen atom in ammonia (NH₃) is:

Accepted Answer

sp³

Answer

sp²

Answer

sp³d

Answer

sp

Question 41

Which of the following is the weakest intermolecular force?

Accepted Answer

Dispersion force

Answer

Ionic interaction

Answer

Hydrogen bond

Answer

Dipole-dipole interaction