Organic Chemistry 5th Edition By Smith – Test Bank

Which of the following molecular formulas is consistent with the formula for a molecule containing one alkyne and no other degrees of unsaturation?

A. I

B. II

C. III

D. IV

2.Bloom’s Level: 2. Understand

Difficulty: Easy

Gradable: automatic

Section: 11.01

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

Which of the following represents a terminal alkyne?

A. Only I and II

B. Only II and III

C. Only I and III

D. Only II and IV

Bloom’s Level: 3. Apply

Difficulty: Easy

Gradable: automatic

Section: 11.01

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

3.Which of the following represents an internal alkyne?

A. Only I and II

B. Only I and III

C. Only II and IV

D. Only II and III

4.Bloom’s Level: 3. Apply

Difficulty: Easy

Gradable: automatic

Section: 11.01

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

Which of the following alkynes is a symmetrical alkyne?

A. I

B. II

C. III

D. IV

Bloom’s Level: 3. Apply

Difficulty: Easy

Gradable: automatic

Section: 11.01

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

5. How many degrees of unsaturation are introduced by a triple bond?

A. 0

B. 1

C. 2

D. 3

Accessibility: Keyboard Navigation

Bloom’s Level: 5. Evaluate

Difficulty: Easy

Gradable: automatic

Section: 11.01

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

6. How many s bonds and p bonds are present in a triple bond?

A. One s bond and one p bond.

B. One s bond and two p bonds.

C. Two s bonds and one p bond.

D. Two s bonds and two p bonds.

Accessibility: Keyboard Navigation

Bloom’s Level: 3. Apply

Difficulty: Easy

Gradable: automatic

Section: 11.01

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

7. Which of the following statements about alkynes is not true?

A. Alkynes undergo many addition reactions.

B. Alkynes are more polarizable than alkenes.

C. Both p bonds of a C-C triple bond are weaker than a C-C s bond.

D. The electrons in the p bonds of alkynes are more tightly held than those of alkenes.

8.Accessibility: Keyboard Navigation

Bloom’s Level: 3. Apply

Difficulty: Easy

Gradable: automatic

Section: 11.01

Subtopic: Physical properties of alkynes

Subtopic: Reactions of alkynes

Topic: Alkynes

Give the IUPAC name for the following compound.

A. 6,6-Dimethyl-3-octyne

B. 3,3-Dimethyl-3-octyne

C. 3,3-Dimethy-5-octyne

D. 6-Ethyl-6-methyl-3-heptyne

Bloom’s Level: 3. Apply

Difficulty: Easy

Gradable: automatic

Section: 11.02

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

9.

Give the IUPAC name for the following compound.

A. 4,4-Diethyl-1-octyne

B. 4,4-Dipropyl-1-heptyne

C. 4,4-Dipropyl-6-heptyne

D. 4,4-Diethyl-6-octyne

Bloom’s Level: 3. Apply

Difficulty: Medium

Gradable: automatic

Section: 11.02

Subtopic: IUPAC Nomenclature of alkynes

Topic: Alkynes

10. Give the IUPAC name for the following compound.

A. 4-Chloro-4-methyl-2-heptyne

B. 3-Chloro-3-methyl-4-heptyne

C. 3-Chloro-3-methyl-4-hexyne

D. 4-Chloro-4-methyl-2-hexyne