General Instructions
• Reading time – 5 minutes
• Working time – 3 hours
• Write using black or blue pen
Black pen is preferred
• Draw diagrams using pencil
• Board-approved calculators may be used
• A data sheet and a Periodic Table are provided at the back of this paper • Write your Centre Number and
Student Number at the top of pages 9, 11, 13, 15, 17, 19 and 21
2000
Total marks – 100
Section I
Pages 2–22
75 marks
This section has two parts, Part A and Part B
Part A – 20 marks
• Attempt Questions 1–20
• Allow about 35 minutes for this part
Part B – 55 marks
• Attempt Questions 21–32
• Allow about 1 hour and 40 minutes for this part
Section II
Pages 23–33
25 marks
• Attempt ONE question from Questions 33–37
• Allow about 45 minutes for this section
Section I
75 marks
Part A – 20 marks
Attempt Questions 1–20
Allow about 35 minutes for this part
Use the multiple-choice answer sheet for Questions 1–20.
1
Which of the following industrial processes is used to produce ethanol from ethylene?
(A) Hydration
(B)
Dehydration
(C)
Addition polymerisation
(D) Condensation polymerisation
2
Which of the following shows two products that result from the fermentation of glucose?
(A) Cellulose and water
(B)
Ethanol and oxygen
(C)
Carbon dioxide and water
(D) Ethanol and carbon dioxide
3
Which of the following lists contains ONLY basic substances?
(A) Oven cleaner, urine, vinegar
(B)
Lemonade, drain cleaner, blood
(C)
Baking soda, ammonia, sea water
(D) Antacid, dishwashing detergent, lemon juice
4
Which of the following gases can cause major depletion of the ozone layer?
(A) O2
(B)
NO2
(C)
CO2
(D) CCl3F
– 2 –
5
Iron (III) chloride and aluminium sulphate are two chemicals that can be used in the purification of town water supplies. What is the role of these chemicals?
(A) To disinfect water by removing bacteria
(B) To remove particulate material by flocculation
(C) To control the concentration of total dissolved solids
(D) To control the pH of the water within the required range
6
Which property would be most useful in distinguishing between butan-1-ol and propan-1-ol? (A) Boiling point
(B) Colour
(C) Conductivity
(D) Density
7
Which of the following lists contains ONLY unstable isotopes?
(A)
99
Tc,
43
12
N
7
(B)
214
Pb,
82
46
Ca,
20
99
Tc
43
(C
C)
238
U,
92
40
Ca,
20
12
N
7
(D)
8
207
Pb,
82
238
U,
92
40
Ca,
20
99
Tc
43
What is the systematic name of the molecule shown?
O
H3C
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