Which pair of compounds will not form a condensation polymer?
A dicarboxylic acid and a diamine
An amino acid and a carboxylic acid
A dicarboxylic acid and a diol
Two amino acids
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Which pair of compounds will not form a condensation polymer?
A dicarboxylic acid and a diamine
An amino acid and a carboxylic acid
A dicarboxylic acid and a diol
Two amino acids
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The structure below shows the repeating pattern of a polymer.
Which pair of compounds could react rapidly to form this polymer?
Butane-1,4-diol and propanedioic acid
Propane-1,3-diol and butanedioic acid
Butanoyl chloride and propane-1,3-diol
Propane-1,3-diol and butanedioyl dichloride
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Which compound can form a condensation polymer by itself?
HOOCCH2CH2COOH
NH2C6H4NH2
COCl CH2NH2
CH2OHCH2COOCH2OH
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What are the products of the alkaline hydrolysis of a polyester?
Dicarboxylic acids and compounds with 2 ammonium ion groups
Dicarboxylic acid salts and diamines
Diols and dicarboxylic acids
Diols and dicarboxylic acid salts
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The structure below shows the repeating pattern of a polymer.
Which pair of compounds could react to form this polymer?
CH2OHCF(CF3)OH and HOOCCF2CF2COOH
CH2CFCF3 and C2F4
CH3C(CF3)HF and CF2CF2
CF3CFCF2 and CF2HCH3
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The repeating unit of a polymer is shown.
Which monomer or pair of monomers could be used to make this polymer?
Benzene-1,4-dicarboxylic acid and benzene-1,3-diamine
Benzene-1,4-dicarboxylic acid only
Benzene-1,4-dicarboxylic acid and benzene-1,4-diamine
Benzene-1,3-dicarboxylic acid and benzene-1,4-diamine
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The repeating unit of a polyester is shown.
Plastics made from this polyester only soften at high temperatures. Which statement correctly explains the reason for this?
The polymer chains contain strong carbon-carbon bonds
The polymer chains contain hydrogen bonding and London dispersion forces between them
The polymer chains contain permanent dipole-dipole forces and London dispersion forces between them
The polymer chains contain strong carbon-oxygen bonds
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Which polymer is most likely to biodegrade in landfill after several years?
PVC
Polyethene
Teflon
Nylon
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Part of the Kevlar ® polymer chain is shown.
Which monomer or pair of monomers could be used to make Kevlar ®?
Benzoic anhydride and 1,4-diaminobenzene
1,4-benzenedicarbonyl dichloride and 1,4-diaminobenzene
Benzene-1,4-dicarboxylic acid and 4-aminobenzoic acid
4-aminobenzoic acid only
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The structure of the polymer PGLA is shown below:
Which of the following compounds will be formed from the acid hydrolysis of PLGA?
2-hydroxypropanoic acid
1-hydroxypropanoic acid
Ethanoic acid
Propanoic acid
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What is the empirical formula of a four-carbon molecule that forms a polymer with ClOC(CH2)8COCl?
C2H6N
C2H3O
C4H9ON
C4H9O2N
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Which polymer exhibits the strongest type of intermolecular force?
PET
PVC
Kevlar
Poly(propene)
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Polymers can be hydrolysed in acidic or alkaline conditions.
Which row is correct?
|
Molecule |
Hydrolysis reaction |
Product(s) |
A |
Polyester |
Alkaline |
Diacyl chloride and diol |
B |
Polyalkene |
Alkaline |
Hydroxycarboxylic acid |
C |
Polyamide |
Acid |
Diamine and dicarboxylic acid salt |
D |
Protein |
Acid |
Protonated 2-aminocarboxylic acid |
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Which statement about polymers is correct?
Polyesters have higher melting points than polyamides.
The monomer hydroxyethanoic acid has a higher melting point than aminoethanoic acid.
Polyamides are suitable to make fibres for sewing but polyalkenes are not.
Polyalkenes form hydroxycarboxylic acids when hydrolysed in HCl.
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The following is a section of the primary structure of a protein. This section was added to 6 mol dm-3 hydrochloric acid and was heated to 110 oC for 24 hours.
Gly - Ala - Ser - Leu - Asp
How many heterodimeric dipeptides could be formed from the reaction products?
4
10
20
25
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