WorksheetsAddition and Condensation
Total questions: 36
Worksheet time: 26mins
What is the partial structure of the polymer formed by the polymerisation of propene, CH3CH=CH2?
Fats contain the linkage
true
false
Starch can be hydrolysed to produce amino acids.
true
false
Which two terms can be applied to polymers?
addition polymer, polyamide
addition polymer, polyester
condensation polymer, polyamide
condensation polymer, polyester
Starch is a carbohydrate and is broken down to simple sugars by saliva. What is the term for this reaction?
condensation
fermentation
hydrolysis
polymerisation
Which of these is a polymer of protein?
(C2H3Cl)n
(C5H8O2)n
(C6H10O5)n
(C2H3NO)n
The diagram shows the partial structure of Terylene. From which pair of compounds is it made?
(a) is the simplest polymer, composed of chains of repeating –CH2– units.
1. Which of the following kind of polymers are known for their high crystallinity?
a) isotactic
b) syndiotactic
c) atactic
d) none of the mentioned
1. The polymer in which steric placements of the substituent are arranged in such a way to give alternate d and l configurations, is known as _________________
a) isotactic polymer
b) atactic polymer
c) syndio-tactic polymer
d) none of the mentioned
The monomer used to form the polymer shown below is …
CH2CHOH.
CH3CH2OH.
CHOHCH2CHOHCH2.
CHOHCHOH.
Two types of polymer are shown below. Which of the following statements concerning these polymers is correct?
X is thermoplastic whereas Y is thermosetting
X is thermosetting whereas Y is thermoplastic
Both are thermosetting
Both are thermoplastic
What is the name of the temperature above which a polymer is soft and flexible, but below which it is hard and brittle?
The melting point
The thermosetting temperature
The crystalline temperature
The glass transition temperature
Firstly, polymers are long chains which are made up of many molecules known as monomers. These monomers can be anything from amino acids, to alkenes, to alcohols. What all polymers have in common is the type of bond which holds their monomers together. What type of bond is this?
A metallic bond
An ionic bond
A covalent bond
A hydrogen bond
Polymers formed via addition polymerization are often used as plastics. The atoms/groups which make up the monomers determine the properties of the plastic. An example of this is polystyrene. Which monomers join together to form polystyrene?
Ethene
Chloroethene
Propanol
Phenylethene
When non-symmetrical alkenes polymerize (such as chloroethene - which makes up PVC), there 3 ways in which the groups can be arranged in 3-D space. For example, if all of the -Cl groups in polychloroethene (PVC) were arranged in the same direction in 3-D space, the polymer would be described as isotactic. What term is used to describe a polymer where the groups are arranged randomly?
Sporadic
Syndiotactic
Atactic
Practic
Which of the following is a thermosetting polymer?
polystyrene
polyethylene
nylons
epoxy
The chain growth process is usually much slower than the condensation process.
True
False
Which of the following reaction is not accompanied by elimination of a byproduct molecule?
addition polymerization
condensation polymerization
both of the mentioned
none of the mentioned
Polymer classification based on structure are... EXCEPT
Network
Linear
Synthetic
Branched
Amino acids react to form peptides and proteins, this process is known as
addition polymerization
substitution polymerization
condensation polymerization
hydration polymerization
Recycle bottles of plastic are made from
peptides
polyamides
nylon
polyethylene terephthalate
In condensation of polymerization, monomers are involved which contain functional groups of
same kind
different kind
all groups
compounds
Large molecules made up of small monomers are called
polymers
peptides
peptones
monomers
Monomers of ethene in thousand numbers react together in addition polymerization to produce
polyamides
polyesters
poly(ethene)
all of them
Deformation behavior of a thermoplastic plastic above glass transition temperature
viscous fluid
brittle
leathery and then rubbery
glassy
Which polymer have this kind of structure?
Elastomer
Kevlar
Rubber
Cotton
Small molecules that make up larger molecules
polymer
monomer
plastic
synthetic
Once formed, it can be heated and reformed over and over again
thermoset
thermoplastic
elastomer
kevlar
Thermoplastic have...
good surface finish, UV resistance, recyclabillity
good surface finish, low strength, can't be reformed with heat
good dimensional stability, low strength, good heat resistance
high regidity, UV resistant, can be reformed with heat
Stages involve in addition polymerization EXCEPT
propagation
catalyst
termination
initiation
Plastic bottles are fabricated by using which method
Rotational molding
Injection molding
Blow molding
Extrusion
Name of this process?
Extrusion
Compression molding
Injection molding
Transfer molding
Which of the following reaction is not accompanied by elimination of a byproduct molecule?
addition polymerization
condensation polymerization
both of the mentioned
none of the mentioned
Proteins are composed of what smaller subunits?
amino acids
fatty acids
nucleic acids
nucleotides
