The short segment of polymer of 3-hydroxybutyric acid (PHB) has to be drawn. Concept introduction: Polymers : Monomers combine together to form polymers. Monomers are the repeating units of small molecules which link together to form polymers and the process is called as polymerization . Two types of polymers: Synthetic and biopolymers. DNA is an example for biopolymer and these type of polymers are synthesized by cells. Polymers synthesized by scientists are called synthetic polymers and some examples are nylon, polyester etc. Two types of synthetic polymers: Chain-growth polymers or addition polymers and Step-growth polymers or Condensation polymers. Chain growth polymers are formed by the monomer addition to the end of a growing chain. Step-growth polymers are formed by combining monomers by removing small molecules of water or alcohol.

Question

Which of the following statements is NOT true? A.The sulfur atom contributes two electrons to the pi system. B. Thiophene can be polymerized. C. Thiophene is polar D. Furan is less reactive than thiophene to electrophilic aromatic substitution.

Answer 1

Question

Chapter 27.13, Problem 23P

(a)

Interpretation Introduction

Interpretation:

The short segment of polymer of 3-hydroxybutyric acid (PHB) has to be drawn.

Concept introduction:

Polymers:

Monomers combine together to form polymers. Monomers are the repeating units of small molecules which link together to form polymers and the process is called as polymerization.

Two types of polymers:

Synthetic and biopolymers.

DNA is an example for biopolymer and these type of polymers are synthesized by cells.

Polymers synthesized by scientists are called synthetic polymers and some examples are nylon, polyester etc.

Two types of synthetic polymers:

Chain-growth polymers or addition polymers and Step-growth polymers or Condensation polymers.

Chain growth polymers are formed by the monomer addition to the end of a growing chain.

Step-growth polymers are formed by combining monomers by removing small molecules of water or alcohol.

(b)

Interpretation Introduction

Interpretation:

The short segment of polymer biopol (PHBV) with alternating monomers has to be drawn.

Concept introduction:

Polymers:

Monomers combine together to form polymers. Monomers are the repeating units of small molecules which link together to form polymers and the process is called as polymerization.

Two types of polymers:

Synthetic and biopolymers.

DNA is an example for biopolymer and these type of polymers are synthesized by cells.

Polymers synthesized by scientists are called synthetic polymers and some examples are nylon, polyester etc.

Two types of synthetic polymers:

Chain-growth polymers or addition polymers and Step-growth polymers or Condensation polymers.

Chain growth polymers are formed by the monomer addition to the end of a growing chain.

Step-growth polymers are formed by combining monomers by removing small molecules of water or alcohol.

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