Chapter 25 Synthetic and Natural Organic Polymers

Chapter 25 Synthetic and Natural Organic Polymers

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

Which statement is false concerning a Natta-Ziegler catalyst?

1. A Natta-Ziegler catalyst can be used to promote a polymerization that is selective for isotactic or syndiotactic polymer.
   B. A Natta-Ziegler catalyst containing [Al(C₂H₅)₃] and TiCl₃ can be used to promote the formation of specific isomers in a polymerization.
   C. A Natta-Ziegler catalyst is used to make a polymerization thermodynamically favorable.
   D.

A Natta-Ziegler catalyst has been used by chemists to design polymers with different properties.

Bloom’s Level: 4. Analyze
Difficulty: Medium
Gradable: automatic
Section: 25.02
Subtopic: Polymers
Topic: Organic Molecules

9. Which of the following polymers is formed by a condensation process?
   A.PVC
   B. nylon
   C. Teflon
   D. Plexiglas
   E. neoprene

Bloom’s Level: 4. Analyze
Difficulty: Medium
Gradable: automatic
Section: 25.02
Subtopic: Organic Reactions
Subtopic: Polymers
Topic: Organic Molecules

10. The only true hydrocarbon polymer found in nature is
    A.rubber.
    B. nylon.
    C. Tyvek.
    D. polystyrene.
    E. neoprene.

Bloom’s Level: 3. Apply
Difficulty: Easy
Gradable: automatic
Section: 25.02
Subtopic: Biological Molecules (Biochemistry)
Topic: Organic Molecules

11. A protein is
    A.a polysaccharide.
    B. a saturated ester of glycerol.
    C. one of the units making up a nucleic acid.
    D. a polymer of amino acids.
    E. an aromatic hydrocarbon.

Bloom’s Level: 2. Understand
Difficulty: Medium
Gradable: automatic
Section: 25.03
Subtopic: Biological Molecules (Biochemistry)
Topic: Organic Molecules

12. What structural feature is required to have an isotactic or syndiotactic carbon-based polymer?
    A.A repeating unit that contains an asymmetric carbon
    B. A repeating unit that contains a double bond
    C. A repeating unit that contains a triple bond
    D. A repeating unit that contains an aromatic hydrocarbon
    E. A repeating unit that contains an atom other than carbon

Bloom’s Level: 3. Apply
Difficulty: Medium
Gradable: automatic
Section: 25.02
Subtopic: Polymers
Topic: Organic Molecules