(a)
Interpretation:
True or false.
Ethylene contains one carbon-carbon double bond, and polyethylene contains many carbon-carbon double bonds.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(b)
Interpretation:
True or false.
All c-c bond angles in both LDPE and HDPE are approximately 1200.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(c)
Interpretation:
True or false.
Low-density polyethylene is a highly branched polymer.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(d)
Interpretation:
True or false.
High density polyethylene consists of carbon chains with little branching.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(e)
Interpretation:
True or false.
The density of polyethylene polymers is directly related to the degree of chain branching, the lower the density of the polymer.
Concept Introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
(f)
Interpretation:
True or false.
PS and PVC are currently recycled.
Concept introduction:
Procedures where single molecules or monomers such as hydrocarbons and amino acids bond to form polymers is known as polymerization. Below are the two types of polymers:
- Natural polymers − These polymers consist rubber, cellulose and deoxyribonucleic acid (DNA).
- Manmade or artificial polymer − These polymers are found within PVC i.e. polyvinyl chloride and other plastic.
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Chapter 12 Solutions
OWLv2 for Bettelheim/Brown/Campbell/Farrell/Torres' Introduction to General, Organic and Biochemistry, 11th Edition, [Instant Access], 1 term (6 months)
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- Describe the principle of resonance and give a set of Lewis Structures to illustrate your explanation.arrow_forwardDon't used hand raitingarrow_forwardIt is not unexpected that the methoxyl substituent on a cyclohexane ring prefers to adopt the equatorial conformation. OMe H A G₂ = +0.6 kcal/mol OMe What is unexpected is that the closely related 2-methoxytetrahydropyran prefers the axial conformation: H H OMe OMe A Gp=-0.6 kcal/mol Methoxy: CH3O group Please be specific and clearly write the reason why this is observed. This effect that provides stabilization of the axial OCH 3 group in this molecule is called the anomeric effect. [Recall in the way of example, the staggered conformer of ethane is more stable than eclipsed owing to bonding MO interacting with anti-bonding MO...]arrow_forward
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