Essential Chemistry for IGCSE - Polymers (Section 2)
1
In addition polymerization, what type of bond breaks to allow monomers to join?
2
What is the general formula for an alkene?
3
What is the repeating unit of a polymer made through addition polymerization formed by?
4
What is the main reason for the pollution caused by non-biodegradable plastics?
Atsakymas(C)
They persist in the environment for long periods.
5
What is the type of linkage in a polyester?
6
What type of reaction is the formation of nylon?
Atsakymas(B)
Condensation polymerization
7
What type of reaction forms the basis of addition polymerization?
8
What is a typical example of an amide?
9
What type of bond is formed between monomers during addition polymerization?
10
Which of the following is the correct linkage found in a polyamide?
11
Which of the following is the type of bond present in the repeating unit of poly(ethene)?
12
Which two of the following materials are frequently used for recycling?
13
What is the common name for poly(ethene)?
14
Which of the following are polymers?
15
Which of the following statements is true about the formation of a polymer chain?
Atsakymas(C)
The chain continues until all monomers are used up.
16
Which of the following statements about polymers is correct?
Atsakymas(B)
Addition polymers do not release any other substances.
17
Which of the following is NOT a characteristic of a condensation reaction?
18
Which two of the following are used to make polymers?
19
Which of the following is a characteristic of nylon?
20
What is the main difference between addition and condensation polymerization?
21
What are the two main properties of plastics?
22
Which of the following represents a process where a large molecule is built from small molecules?
23
What is the process of forming a polymer from monomers?
24
Which of the following are characteristics of non-biodegradable plastics?
Atsakymas(B)
They persist in the environment.
25
Which of the following are uses of polymers?
26
Which of the following is a type of polymerization that does NOT involve the loss of a small molecule?
27
Which is an example of an addition polymer?
28
What is the structure that links monomers when forming a polymer?
29
Which of the following is NOT true about the term 'monomer'?
Atsakymas(D)
It is formed during polymerization.
30
What is the repeating unit in the polymer poly(chloroethene) (PVC)?
31
Which of the following is a product of a condensation reaction?
Atsakymas(B)
A polymer and a small molecule
32
What type of bond is broken in the monomer during addition polymerization?
33
Which of the following statements is true about condensation polymerization?
Atsakymas(C)
A small molecule is eliminated during the process.
34
Which is the type of functional groups involved in creating a polyester?
35
What is the name of the polymer formed when chloroethene monomers polymerize?
36
Which functional group is characteristic of the repeating unit of a polyamide?
37
What type of reaction occurs when monomers combine to form polymers in addition polymerization?
Atsakymas(B)
A reaction where no other substance is formed.
38
What does 'n' represent in the general formula for an alkene, CnH2n?
Atsakymas(B)
The number of carbon atoms
39
Which of the following statements best describes the structure of a monomer that will undergo addition polymerization?
Atsakymas(C)
It contains a double or triple bond.
40
What does the letter 'n' represent in the brackets of a repeating unit?
Atsakymas(A)
The number of repeating units
41
What is the small molecule released during the formation of a polyester?
42
What structural feature is characteristic of alkenes, which are often the monomers used in addition polymerization?
Atsakymas(C)
A double bond between carbon atoms
43
Which statements best describes the monomers for poly(ethene)?
44
What does the 'n' represent in the formula for poly(ethene), (-CH2-CH2-)n?
Atsakymas(C)
The number of repeating units
45
In the context of polymers, what do we call the small, basic units that combine to form larger molecules?
46
What makes plastic non-biodegradable?
47
Which of the following is not a method to deal with plastic waste?
48
What are the main components that make up nylon?
49
Which of the following is a problem associated with the disposal of plastics?
50
Which feature of a monomer is essential for addition polymerization?
