Chem Bonding General

Question 1

What is a chemical bond?

Answer 1

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.

Question 2

True or False: Ionic bonds involve the sharing of electron pairs.

Answer 2

False

Question 3

Fill in the blank: In covalent bonding, atoms share ________ to achieve stability.

Answer 3

electrons

Question 4

What type of bond is formed when one atom donates an electron to another atom?

Answer 4

Ionic bond

Question 5

Which theory describes the formation of molecular orbitals?

Answer 5

Molecular Orbital Theory

Question 6

Multiple Choice: Which of the following is a characteristic of ionic compounds? A) Low melting point B) High conductivity in solid state C) Formed by transfer of electrons D) All of the above

Answer 6

C) Formed by transfer of electrons

Question 7

What is the primary feature of VSEPR theory?

Answer 7

VSEPR theory predicts the geometry of molecules based on repulsion between electron pairs.

Question 8

True or False: The octet rule states that atoms tend to form bonds to achieve eight electrons in their outer shell.

Answer 8

True

Question 9

What is the main assumption of Valence Bond Theory?

Answer 9

Valence Bond Theory assumes that covalent bonds are formed when atomic orbitals overlap.

Question 10

Fill in the blank: In a polar covalent bond, electrons are ________ unequally shared between atoms.

Answer 10

unequally

Question 11

What determines the polarity of a molecule?

Answer 11

The difference in electronegativity between the bonded atoms and the molecular geometry.

Question 12

Multiple Choice: Which of the following is NOT a type of chemical bond? A) Ionic B) Covalent C) Metallic D) Quantum

Answer 12

D) Quantum

Question 13

True or False: Metallic bonds allow for the flow of electricity.

Answer 13

True

Question 14

What is hybridization in chemistry?

Answer 14

Hybridization is the mixing of atomic orbitals to form new hybrid orbitals for bonding.

Question 15

Fill in the blank: The shape of a molecule can be predicted using ________ theory.

Answer 15

VSEPR

Question 16

What is the significance of resonance structures?

Answer 16

Resonance structures illustrate the delocalization of electrons in a molecule.

Question 17

Multiple Choice: Which bond type has the highest electronegativity difference? A) Nonpolar covalent B) Polar covalent C) Ionic D) All are equal

Answer 17

C) Ionic

Question 18

What is a sigma bond?

Answer 18

A sigma bond is a type of covalent bond formed by the head-on overlap of atomic orbitals.

Question 19

True or False: A pi bond can exist independently of a sigma bond.

Answer 19

False

Question 20

What is the role of electronegativity in chemical bonding?

Answer 20

Electronegativity determines how electrons are shared or transferred between atoms.

Question 21

Fill in the blank: A molecule with a symmetrical shape is likely to be ________.

Answer 21

nonpolar

Question 22

What is the primary factor influencing the strength of a bond?

Answer 22

The type of bond and the electronegativity of the atoms involved.

Question 23

Multiple Choice: Which type of bond typically has the lowest melting point? A) Ionic B) Covalent C) Metallic D) Hydrogen

Answer 23

B) Covalent

Question 24

What is the main characteristic of a hydrogen bond?

Answer 24

A hydrogen bond is a weak attraction between a hydrogen atom and an electronegative atom.

Question 25

True or False: All molecules with polar bonds are polar molecules.

Answer 25

False