Chemical Bonding: Interactive Quizzes and Practice Questions

Question 1

What is the shape of a molecule with the following Lewis structure: X-Y-X?

Accepted Answer

Trigonal planar

Answer

Linear

Answer

Tetrahedral

Answer

Bent

Question 2

What is the hybridization of the nitrogen atom in ammonia (NH₃)?

Accepted Answer

sp³

Answer

sp

Answer

sp²

Answer

sp³d

Question 3

Chemical bonds can be classified into which types?

Accepted Answer

Ionic, covalent, and metallic

Answer

Hydrogen, oxygen, and carbon

Answer

Strong, weak, and medium

Answer

Polar, nonpolar, and dipole-dipole

Question 4

In an ionic bond, what happens to the electrons involved?

Accepted Answer

Transferred from one atom to another

Answer

Lost by both atoms

Answer

Gained by both atoms

Answer

Shared between atoms

Question 5

In metallic bonding, how are the electrons arranged?

Accepted Answer

Delocalized in a lattice

Answer

Attracted to positive ions

Answer

Shared between atoms

Answer

Localized in a lattice

Question 6

Which of the following intermolecular forces is the weakest?

Accepted Answer

London dispersion forces

Answer

Hydrogen bonding

Answer

Dipole-dipole interactions

Answer

Ionic bonding

Question 7

In an ionic bond, the electrostatic force of attraction is between:

Accepted Answer

Positive ions and negative ions

Answer

Positive molecules and negative molecules

Answer

Positive ions and neutral atoms

Answer

Negative ions and neutral atoms

Question 8

Which of the following molecules has a covalent bond?

Accepted Answer

Water

Answer

Sodium chloride

Answer

Sodium

Answer

Magnesium oxide

Question 9

In a metallic bond, the valence electrons are:

Accepted Answer

Free to move throughout the metal lattice

Answer

Localized to specific atoms

Answer

Shared between atoms

Answer

Bound to the positive nuclei of metal atoms

Question 10

Which of the following factors **does not** influence the strength of an ionic bond?

Accepted Answer

Number of atoms involved in the bond

Answer

Size of the ions

Answer

Charge of the ions

Answer

Distance between the ions

Question 11

Which type of intermolecular force occurs between molecules with a permanent dipole?

Accepted Answer

Dipole-dipole interaction

Answer

Hydrogen bonding

Answer

Van der Waals forces

Answer

Ion-dipole interaction

Question 12

The formation of chemical bonds is driven by:

Accepted Answer

A decrease in potential energy

Answer

An increase in kinetic energy

Answer

A decrease in entropy

Answer

An increase in temperature

Question 13

Which of the following properties of a compound is **not** influenced by the type of chemical bonds present?

Accepted Answer

Color

Answer

Physical state

Answer

Reactivity

Answer

Solubility

Question 14

In a polar covalent bond, the shared pair of electrons is:

Accepted Answer

Unequally shared between the atoms

Answer

Equally shared between the atoms

Answer

Localized to specific atoms

Answer

Completely transferred from one atom to another

Question 15

Which of the following molecules is formed through covalent bonding?

Accepted Answer

Water

Answer

Sodium chloride

Answer

Iron

Answer

Magnesium oxide

Question 16

Which of the following is an example of an intermolecular force?

Accepted Answer

Hydrogen bond

Answer

Ionic bond

Answer

Covalent bond

Answer

Metallic bond

Question 17

Which of the following is a type of covalent bond where electrons are shared unequally?

Accepted Answer

Polar covalent bond

Answer

Non-polar covalent bond

Answer

Ionic bond

Answer

Hydrogen bond

Question 18

Which of the following compounds has the weakest intermolecular forces?

Accepted Answer

Methane (CH4)

Answer

Water (H2O)

Answer

Carbon dioxide (CO2)

Answer

Sodium chloride (NaCl)

Question 19

Which of the following bonds is formed due to the attraction between a positively charged ion and a negatively charged ion?

Accepted Answer

Ionic bond

Answer

Metallic bond

Answer

Covalent bond

Answer

Hydrogen bond

Question 20

Which of the following intermolecular forces is responsible for the high boiling point of water?

Accepted Answer

Hydrogen bonding

Answer

Dipole-dipole interactions

Answer

London dispersion forces

Answer

Ionic bonding

Question 21

Covalent bonds are formed by the:

Accepted Answer

Sharing of electrons between atoms

Answer

Transfer of electrons between atoms

Answer

Attraction between positive and negative ions

Answer

Repulsion between like charges

Question 22

Which of the following substances has metallic bonding?

Accepted Answer

Copper

Answer

Sodium chloride

Answer

Water

Answer

Diamond

Question 23

Which of the following is a type of metallic bonding?

Accepted Answer

Electron sea model

Answer

Ionic bonding

Answer

Covalent bonding

Answer

Hydrogen bonding

Question 24

How do stronger intermolecular forces generally affect the melting point and boiling point of substances?

Accepted Answer

Higher melting point and higher boiling point

Answer

Lower melting point and lower boiling point

Answer

Higher melting point but lower boiling point

Answer

No effect on melting point or boiling point

Question 25

When atoms share one or more pairs of electrons, what type of bonding occurs?

Accepted Answer

Covalent bonding

Answer

Ionic bonding

Answer

Metallic bonding

Answer

Hydrogen bonding

Question 26

Identify the substance that has a giant metallic structure:

Accepted Answer

Iron

Answer

Sodium chloride

Answer

Water

Answer

Graphite

Question 27

Determine the hybridization of the carbon atom in methane (CH₄):

Accepted Answer

sp3

Answer

sp

Answer

sp2

Answer

sp3d

Question 28

In ionic bonding, one atom transfers electrons to another atom, resulting in the formation of:

Accepted Answer

Positively and negatively charged ions

Answer

Neutral molecules

Answer

Positively charged ions and electrons

Answer

Negatively charged ions and electrons

Question 29

Which of the following substances is held together by covalent bonds?

Accepted Answer

Water (H2O)

Answer

Sodium chloride (NaCl)

Answer

Magnesium oxide (MgO)

Answer

Sodium (Na)

Question 30

In metallic bonding, the metal atoms:

Accepted Answer

Share electrons in a sea of delocalized electrons

Answer

Transfer electrons to form positive ions

Answer

Covalently bond to each other

Answer

Are held together by strong electrostatic forces

Question 31

Which of the following molecules has a polar covalent bond?

Accepted Answer

Water (H2O)

Answer

Hydrogen (H2)

Answer

Carbon dioxide (CO2)

Answer

Nitrogen (N2)

Question 32

Which factor primarily determines the polarity of a covalent bond?

Accepted Answer

Difference in electronegativity between the bonded atoms

Answer

Length of the bond

Answer

Number of electrons in the bond

Answer

Type of hybridization

Question 33

Which of the following is **not** a type of chemical bond?

Accepted Answer

Hydrogen bond

Answer

Metallic bond

Answer

Ionic bond

Answer

Covalent bond

Question 34

Which of the following compounds has ionic bonding?

Accepted Answer

NaCl

Answer

CH4

Answer

H2O

Answer

Fe

Question 35

Which of the following is a distinctive feature of covalent bonding?

Accepted Answer

Electrons are shared between atoms.

Answer

Metallic luster

Answer

Ions are formed.

Answer

Electrons are transferred from one atom to another.

Question 36

Which of the following is **not** a property associated with metallic bonding?

Accepted Answer

Brittleness

Answer

High electrical conductivity

Answer

High melting point

Answer

Malleability

Question 37

Which of the following molecules has the strongest intermolecular forces?

Accepted Answer

H2O

Answer

CO2

Answer

CH4

Answer

N2

Question 38

What type of bond is formed when an atom gains or loses electrons?

Accepted Answer

Ionic bond

Answer

Covalent bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 39

Which of the following best describes the type of bond formed between sodium (Na) and chlorine (Cl) in table salt (NaCl)?

Accepted Answer

Ionic bond

Answer

Hydrogen bond

Answer

Metallic bond

Answer

Covalent bond

Question 40

Which of the following molecules is held together by a double covalent bond?

Accepted Answer

Oxygen (O₂)

Answer

Water (H₂O)

Answer

Methane (CH₄)

Answer

Carbon dioxide (CO₂)

Question 41

Which of the following best explains why water has a relatively high boiling point compared to other similar-sized molecules?

Accepted Answer

Strong hydrogen bonding between water molecules.

Answer

Strong covalent bonds within water molecules.

Answer

The presence of oxygen atoms in water molecules.

Answer

Weak Van der Waals forces between water molecules.

Question 42

A molecule with a polar covalent bond will have:

Accepted Answer

An uneven distribution of electron density.

Answer

Equal sharing of electrons between atoms.

Answer

A symmetrical shape.

Answer

A low melting point.

Question 43

Which of the following pairs of atoms is most likely to form an ionic bond?

Accepted Answer

Sodium (Na) and Chlorine (Cl)

Answer

Oxygen (O) and Oxygen (O)

Answer

Carbon (C) and Hydrogen (H)

Question 44

Which of the following substances would be expected to have the weakest intermolecular forces?

Accepted Answer

Helium (He)

Answer

Water (H₂O)

Answer

Ammonia (NH₃)

Answer

Ethanol (C₂H₅OH)

Question 45

A student is investigating the conductivity of different substances. Which of the following substances would be expected to be a good conductor of electricity in the solid state?

Accepted Answer

Copper (Cu)

Answer

Sodium chloride (NaCl)

Answer

Sugar (C₁₂H₂₂O₁₁)

Answer

Water (H₂O)

Question 46

Which of the following statements accurately describes the difference between covalent and ionic bonds?

Accepted Answer

Covalent bonds involve the sharing of electrons, while ionic bonds involve the transfer of electrons.

Answer

Covalent bonds are stronger than ionic bonds.