Lesson 3 - Chapter 3 - 2sec

What is the most likely bond angle of the C-O-H bond in a molecule of propanol?

……… o

• 104.5^o

• 107^o

• 109.5^o

• 120^o

When an atom undergoes spⁿ hybridization, how many hybrid orbitals are formed?

• n hybrid orbitals

• n+1 hybrid orbitals

• n-1 hybrid orbitals

Fill in the blank: When electrons form chemical bonds, electrons are promoted and the atom enters ………….. state?

• an excited

• a tetrahedral

• a hybridized

• an overlapped

During the formation of chemical bonds, hybridization can occur. Atomic orbitals merge together mathematically to form hybrid orbitals.

What hybrid orbitals are formed when one s orbital and three p orbitals all hybridize?

• One sp3 orbital

• Four sp3 orbitals

• Two sp2 orbitals

• Four sp2 orbitals

In a molecule of ethene, all five of the 𝜎 bonds exist in the same plane. What region of space does the 𝜋 bond occupy in relation to the central 𝜎 bond in a molecule of ethene?

• A

• B

• C

• D

• E

By considering the shape of the individual units that make up the macromolecule in the diagram, which type of hybridization is occurring in the carbon atoms of graphene?

• sp3d2

• sp2

• sp3

• sp

Boron trifluoride can react with a fluoride anion to produce boron tetrafluoride (BF4^-) .Which of the following is the correct Lewis structure of BF4^- ?

• A

• B

• C

• D

• E

In the following diagrams, hybrid orbitals of an excited carbon atom are colored green and nonhybridized orbitals are colored black.

Which diagram shows sp3 hybridization?

• A

• B

• C

In the following diagrams, hybrid orbitals of an excited carbon atom are colored green and nonhybridized orbitals are colored black.

Which diagram shows sp hybridization?

• A

• B

• C

In the following diagrams, hybrid orbitals of an excited carbon atom are colored green and nonhybridized orbitals are colored black.

Which diagram shows sp2 hybridization?

• A

• B

• C