1. QUIZ #1

2. Question 1 Which of the following is an unsaturated hydrocarbon:
Propene
Propanol
Propane
2-chloro-propane
a) Propene

3. Question 2 2. Write the structural formula for : 2,2 dichloropentane
2– bromopentane
1,2 dibromopentane

4. Question 3 Complete the following:
Addition of hydrogen to ethene results in the formation of .
Addition of a (eg: Cl, Br) to ethene results in the formation of a .
Addition of a hydrogen (eg: HCl) to ethylene also produces .
Addition of (in the presence of an catalyst) to ethylene produces an .
Ethane
halogen, di-halo-alkane
Halide, haloalkane
Water, acidic, alcohol

5. Question 4 Write a balanced chemical equation for the
following reactions:
Addition of hydrogen to propene
Addition of chlorine to butene
Addition of hydrogen chloride to propene
Addition of water to ethene
a) C3H6(g) + H2(g) →C3H8 propane
b) C4H8(g) + Cl2(g) →C4H8 Cl2 1,2 dichlorobutane
c) C3H6(g) + H Cl(g) →CH3CHClCH3 2-chloropopane
d) C2H4(g) + H2O(g) →C2H5OH ethanol

6. Question 5 Name the following compounds: CH3CH2CH2CH2OH CH2Br-CH2Br
CH2=CHCH2CH2CH3
1-propanol
1,2 dibromoethane
Ethanol
Pentene

7. Question 6 Polytetraflouroethene (teflon) is a hard tough
non-flammable polymer. The structure of teflon
is shown below:
Show the structural formula of the monomer that
would be used to make this polymer
-C – C- F F
F2C=CF2

8. Question 7 Would a thermoplastic or thermosetting plastic
be more suitable for the following:
Electrical power switch
Plastic film for wrapping sandwiches
Squeezeable juice container
Knob on a saucepan lid
Thermosetting
Thermoplastic
Thermosplastic
thermosetting

9. Question 8 Show the structural formula of:
polyethylene and the monomer from which it is formed.
Poly (vinyl chloride) and the monomer from which it is formed
n(CH2 = CH2) →—(CH2–CH2)n—
CH2=CHCl, CH2-CHCl-CH2-CHCl

10. Question 9 Which of the following are all formed by addition
polymerisation:
polyethylene, PVC, nylon
polypropylene, PVC, PET
poly(acrylonitrile), polethylene, polystyrene
polystyrene, PVC, nylon c)

11. Question 10 How does the hardness of a polymer change with:
Increased branching of polymer chains
Increased cross linking between chains
Short polymer chain
Weak intermolecular forces between chains
Increased orderly arrangement of polymer chains
Reduced hardness
Increased hardness