Organic Chemistry 8th Edition by L. G. Wade - Test Bank

Organic Chemistry, 8e (Wade)

Chapter 2   Structure and Properties of Organic Molecules

1) An orbital can be described by its ________, which is the mathematical description of the shape of the electron wave as it oscillates.

Answer:  wave function

Diff: 1

Section:  2.1

2) The electron density at any point is proportional to the ________ of the electron wave at that point.

Answer:  square of the wave function

Diff: 2

Section:  2.1

3) Which atomic orbital combination would result in a molecular sigma bond?

A)

B)

C)

D)

Answer:  B

Diff: 1

Section:  2.2

4) Two p orbitals can overlap to form a s molecular orbital.  How many nodes are present in this s molecular orbital?

A) 0

B) 1

C) 2

D) 3

Answer:  C

Diff: 1

Section:  2.2

5) Two p orbitals can overlap to form a s* molecular orbital.  How many nodes are present in this s* molecular orbital?

A) 0

B) 1

C) 2

D) 3

Answer:  D

Diff: 1

Section:  2.2

6) When orbitals on different atoms interact, ________ are produced.

Answer:  molecular orbitals

Diff: 1

Section:  2.2

7) What kind of molecular orbital (, *, π, or π*) results when the two atomic orbitals shown below interact in the manner indicated?

Answer:  *

Diff: 2

Section:  2.2

8) What kind of molecular orbital (, *, π, or π*) results when the two atomic orbitals shown below interact in the manner indicated?

Answer: 

Diff: 2

Section:  2.2

9) What kind of molecular orbital (, *, π, or π*) results when the two atomic orbitals shown below interact in the manner indicated?

Answer:  *

Diff: 2

Section:  2.2

10) How many carbon-carbon bonds are present in the molecule shown?

A) 1

B) 2

C) 3

D) 4

E) 5

Answer:  E

Diff: 2

Section:  2.2

11) How many carbon-carbon s bonds are present in the molecule shown?

A) 1

B) 2

C) 3

D) 4

E) 5

Answer:  D

Diff: 2

Section:  2.2

12) How many carbon-carbon s bonds are present in the molecule shown?

A) 1

B) 2

C) 3

D) 4

E) 5

Answer:  C

Diff: 2

Section:  2.2

13) Consider the interaction of two hydrogen 1s atomic orbitals of the same phase. Which of the statements below is an incorrect description of this interaction?

A) A sigma bonding molecular orbital is formed.

B) The molecular orbital formed is lower in energy than a hydrogen 1s atomic orbital.

C) The molecular orbital formed has a node between the atoms.

D) The molecular orbital formed is cylindrically symmetric.

E) A maximum of two electrons may occupy the molecular orbital formed.

Answer:  C

Diff: 3

Section:  2.2

14) A ________ bond results when parallel p orbitals overlap sideways.

Answer:  π

Diff: 1

Section:  2.3