Chapter 3: Types of bonding Quiz

the type of hybridization in methane molecule

• Sp³

• Sp²

• Sp

• Sp

the angle in ammonia molecule is ..........

• 107

• 105

• 109.5

• 120

Which of the following pairs of atoms are unlikely to form a covalent bond?

• nitrogen and oxygen

• carbon and hydrogen

• sodium and chlorine

• sulfur and oxygen

Which of the following statements about chemical bonding is false?

• In covalent bonding, electrons are shared between atoms.

• Molecular compounds can only contain covalent or ionic bonding, never both

• In ionic bonding, electrons are transferred between atoms, forming ions

• Ionic bonding involves electrostatic attractions between oppositely charged particles.

how many lone pairs exist in water molecule

• 1

• 2

• 3

• 4

Molecules of HF, H₂O, NH₃ are all able to form hydrogen bonds. What property of a molecule gives it the ability to form a hydrogen bond?

• The number of hydrogen atoms covalently bonded to an atom of a different element

• A large difference in electronegativity between hydrogen and the atom it is bonded to

• The ability to conduct electricity in aqueous solutions

• Whether the molecular geometry of the molecule is linear or bent

Why is the hydrogen bond between H₂O molecules stronger than that between NH₃ molecules?

• Due to the higher difference in electronegativity between nitrogen and hydrogen atoms than that found between oxygen and hydrogen atoms

• Due to the higher difference in electronegativity between oxygen and hydrogen atoms than that found between nitrogen and hydrogen atoms

• Due to the presence of 2 lone pairs of electrons on the oxygen atoms in water molecules

• Due to the presence of 1 lone pair of electrons on the nitrogen atoms in ammonia molecules

As hybrid orbitals are identical, they arrange themselves in space to minimize repulsion between the areas of electron density, affecting the shape of the resulting molecule.

What molecular shape is associated with SP³ hybridization?

• Square planar

• Trigonal planar

• Tetrahedral

• Linear

how many sigma and pi bond between carbon atoms is C₂H₂

• 1 sigma and 1 pi

• 2 sigma and 1 pi

• 1 sigma and 2 pi

• 2 sigma and 2 pi

Which pair of atoms are considered to be polar?

• C-C

• O-H

• O=O

• C-H