The following molecule can undergo addition polymerisation.
What it the correct repeat unit?
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The following molecule can undergo addition polymerisation.
What it the correct repeat unit?
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Polyesters can be made by condensation polymerisation. Ethanediol can react with butanedioic acid (a carboxylic acid containing two -COOH groups) to make a polymer.
Which of the following is a correct repeat unit for this polymer?
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How many functional groups are present in the amino acid alanine?
1
2
3
4
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Which of the following is not true about DNA?
The structure is a double helix
DNA is made from nucleotides
DNA is made from two polymer chains
The monomers that form DNA are amino acids
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What is the name and formula of the monomer that makes up starch and cellulose?
Name | Formula | |
A | fructose | C6H12O6 |
B | glycine | H2NCH2COOH |
C | glucose | C6H12O6 |
D | sucrose | C12H22O11 |
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The structure of a polymer is shown below.
What is the correct monomer?
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Part of the chemical structure of a wool fibre is shown below.
What is true about the structure?
The structure is a carbohydrate
The structure is an addition polymer
The structure is a protein
Hydrogen has two covalent bonds in the chain
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