Question 1

Melamine and formaldehyde combine to form the polymer,Melmac®.How is Melmac® classified,and what physical characteristics are consistent with its structure?

Accepted Answer

A) Polycarbonate,transparent 
B) Polyurethane,elastic 
C) Thermosetting,rigid 
D) Thermoplastic,can be melted and molded into new shapes 
A) Polycarbonate,transparent 
B) Polyurethane,elastic 
C) Thermosetting,rigid 
D) Thermoplastic,can be melted and molded into new shapes

Question 2

Bakelite is formed by the acid-catalyzed polymerization of phenol with formaldehyde.What is (are)the product(s)of the first step in this polymerization,shown below? (Note: in the answers below the hydroxymethyl group is -CH2OH.)

Accepted Answer

A) Ortho and para-hydroxybenzaldehyde 
B) Meta-hydroxybenzaldehyde 
C) Ortho and para-(hydroxymethyl)phenol 
D) Meta-(hydroxymethyl)phenol 
A) Ortho and para-hydroxybenzaldehyde 
B) Meta-hydroxybenzaldehyde 
C) Ortho and para-(hydroxymethyl)phenol 
D) Meta-(hydroxymethyl)phenol

Question 3

What is the classification of the following polymer in which X and Y represent repeating units?

Accepted Answer

A) Block copolymer 
B) Homopolymer 
C) Alternating copolymer 
D) Random copolymer 
A) Block copolymer 
B) Homopolymer 
C) Alternating copolymer 
D) Random copolymer

Question 4

Vulcanization is the process of cross-linking polymer chains in rubber using what chemical?

Accepted Answer

A) Sulfur 
B) Formaldehyde 
C) Benzoyl peroxide 
D) Ethylene glycol 
A) Sulfur 
B) Formaldehyde 
C) Benzoyl peroxide 
D) Ethylene glycol

Question 5

What is the name given to polymers with two or more different monomers?

Accepted Answer

A) Homopolymers 
B) Copolymers 
C) Block polymers 
D) Random polymers 
A) Homopolymers 
B) Copolymers 
C) Block polymers 
D) Random polymers

Melamine and formaldehyde combine to form the polymer,Melmac^®.How is Melmac^® classified,and what physical characteristics are consistent with its structure?

Bakelite is formed by the acid-catalyzed polymerization of phenol with formaldehyde.What is (are)the product(s)of the first step in this polymerization,shown below? (Note: in the answers below the hydroxymethyl group is -CH₂OH.)

What is the classification of the following polymer in which X and Y represent repeating units?

Vulcanization is the process of cross-linking polymer chains in rubber using what chemical?

What is the name given to polymers with two or more different monomers?

Structure and Bonding

Acids and Bases

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols,ethers,and Related Compounds

Alkenes and Addition Reactions

Alkynes and Synthesis

Oxidation and Reduction

Radical Reactions

Conjugation,resonance,and Dienes

Benzene and Aromatic Compounds

Reactions of Aromatic Compounds

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones - Nucleophilic Addition

Carboxylic Acids and the Acidity of the O-H Bond

Carboxylic Acids and Their Derivatives Nucleophilic Acyl Substitution

Substitution Reactions of Carbonyl Compounds at the a Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Lipids

Spectroscopy A: Mass Spectrometry

Spectroscopy B: Infrared Spectroscopy

Spectroscopy C: Nuclear Magnetic Resonance Spectroscopy

Filters

Exam 28: Synthetic Polymers

Melamine and formaldehyde combine to form the polymer,Melmac®.How is Melmac® classified,and what physical characteristics are consistent with its structure?

Bakelite is formed by the acid-catalyzed polymerization of phenol with formaldehyde.What is (are)the product(s)of the first step in this polymerization,shown below? (Note: in the answers below the hydroxymethyl group is -CH2OH.)

What is the classification of the following polymer in which X and Y represent repeating units?

Vulcanization is the process of cross-linking polymer chains in rubber using what chemical?

What is the name given to polymers with two or more different monomers?

Structure and Bonding

Acids and Bases

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols,ethers,and Related Compounds

Alkenes and Addition Reactions

Alkynes and Synthesis

Oxidation and Reduction

Radical Reactions

Conjugation,resonance,and Dienes

Benzene and Aromatic Compounds

Reactions of Aromatic Compounds

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones - Nucleophilic Addition

Carboxylic Acids and the Acidity of the O-H Bond

Carboxylic Acids and Their Derivatives Nucleophilic Acyl Substitution

Substitution Reactions of Carbonyl Compounds at the a Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Lipids

Spectroscopy A: Mass Spectrometry

Spectroscopy B: Infrared Spectroscopy

Spectroscopy C: Nuclear Magnetic Resonance Spectroscopy

Filters

Melamine and formaldehyde combine to form the polymer,Melmac^®.How is Melmac^® classified,and what physical characteristics are consistent with its structure?

Bakelite is formed by the acid-catalyzed polymerization of phenol with formaldehyde.What is (are)the product(s)of the first step in this polymerization,shown below? (Note: in the answers below the hydroxymethyl group is -CH₂OH.)