# Physical Sciences Grade 12 P2 NSC June 2013 QP (Eng)

> Grade 12 Physical Sciences Paper 2 question paper from the NSC June 2013 (English), 23 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/physical-science-p2-sg-english-2013-qp/735a7884-831f-4e5d-98da-4e9d4c31e62d
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 12
- Language: English
- Document type: Question paper
- Year: 2013
- Exam period: NSC June
- Paper: 2
- Curriculum: CAPS
- Pages: 23

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Physical Sciences · Grade 12 · NSC June · 2013 · English. Question paper, 23 pages. Read online or download the PDF.

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basic education

Department:
Basic Education
REPUBLIC OF SOUTH AFRICA

SENIOR CERTIFICATE EXAMINATION

PHYSICAL SCIENCE P2
CHEMISTRY
STANDARD GRADE
2013

MARKS: 150

PHYSICAL SCIENCE SG: Paper 2 TIME: 2 hours

3042E

30422E

This question paper consists of 13 pages, 4 data sheets and 1 answer sheet.

X@5

MNT

Copyright reserved

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Physical Science/SG/P2 2 DBE/2013
SCE

INSTRUCTIONS AND INFORMATION

ao Write your centre number and examination number in the appropriate spaces
on the ANSWER BOOK.

2. Answer ALL the questions.

3. You may use a non-programmable calculator.

4. You may use appropriate mathematical instruments.

5. Data sheets and a periodic table are attached for your use.

6. You may forfeit marks if you do not follow instructions.

QUESTION 1

INSTRUCTIONS AND INFORMATION

1. Answer this question on the attached ANSWER SHEET. Write your centre
number and examination number in the appropriate spaces.

2. Various options are given as possible answers to the following questions.
Each question has only ONE answer. Choose the correct or best answer and
make a cross (X) in the block (A—-D) next to the question number (1.1—1.15)
on the ANSWER SHEET.

3. Do not make any other marks on the ANSWER SHEET. Any calculations or
writing that may be necessary when answering this question should be done
in the ANSWER BOOK and must be deleted clearly by means of a line drawn
across the page.

4. If more than ONE block is marked per question, no marks will be awarded for
that answer.

PLACE THE COMPLETED ANSWER SHEET INSIDE THE FRONT COVER OF
YOUR ANSWER BOOK.

EXAMPLE:

QUESTION: The symbol for the SI unit of time is ...

when 2
Zea

ANSWER: A |B D

Con eed CA ALOT tm cnr

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Physical Science/SG/P2 3 DBE/2013
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77 The temperature of a gas is ...

A __ the heat of the gas.

B__ the product of the pressure and volume of the gas.

C —ameasure of the number of moles of the gas.

D —_ameasure of the average kinetic energy of the molecules of the gas. (3)

1.2 The volume of an enclosed mass of gas is decreased without a change in
temperature.

The gas pressure increases because ...

A __ the gas particles are smaller.

B __ the gas particles are moving faster.

C _asmaller distance separates the gas particles.
D

the number of collisions with the walls of the container increases. (3)

1.3 The molecules in an ice crystal are held together by ...

A __ hydrogen bonding.

B covalent bonding.

C Van der Waals forces.

D __ ionic bonding. (3)

1.4 A sulphur compound that can act as both a reducing agent and an oxidising

agentis ...

A HS.

B SO2.

CC SOs,

D  HSOx, (3)

1.5 A few potassium permanganate crystals are added to chloroform and water in
a test tube and mixed thoroughly. Which ONE of the following observations will
be made after a while?

TOP LAYER BOTTOM LAYER
(WATER) (CHLOROFORM)
A | purple colourless
B | purple purple
C | colourless purple
D_ | colourless colourless (3)

Conan roene ANN Pee tum over

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Physical Science/SG/P2 4 DBE/2013

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1.6 When concentrated sulphuric acid is added to blue copper sulphate crystals,
the crystals turn white. In this reaction, sulphuric acid acts as a/an...

A

B
Cc
D

reducing agent.
oxidising agent.
bleaching agent.

dehydrating agent. (3)

7 The pH of an aqueous solution of ammonia (NHs) will probably be ...

A 11.

B

Cc

D (3)
1.8 In a standard Zn-Cu electrochemical cell, the electrolyte at the anode consists

ofa...

A 1,0 mol.dm® solution of Zn”* ions.

B 0,1 mol.dm® solution of Cu" ions.

C 1,0 mol.dm® solution of Cu?* ions.

D 0,1 mol.dm® solution of Zn* ions. (3)
1.9 A protolytic reaction is one in which ...

A OH ions are liberated.

B electrolysis takes place.

C__ proton transfer takes place.

D electron transfer takes place. (3)
1.10 A reaction between marble chips (CaCO3) and dilute hydrochloric acid (HC?)

takes place according to the following balanced equation:

CaCO3(s) + 2HCf(aq) — CaCh(aq) + H2O(t) + CO2(g)

In this reaction, the rate of CO2(g) production can be DECREASED by ...

A __ adding more marble chips.

B _ stirring the reaction mixture.

C adding water to the reaction mixture.

D grinding the marble chips into smaller pieces. (3)

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Physical Science/SG/P2 5 DBE/2013
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1.11. When a chemical reaction is in equilibrium, the ...

A __ concentration of the reactants is zero.

B reactants and products have the same mass.

C reactants and products have the same concentration.
D

forward and reverse reactions occur at the same rate. (3)

1.12 In which ONE of the following reactions taking place in closed containers will
an increase in pressure, obtained by decreasing the volume of the container,
shift the equilibrium to the right?

2HI(g)= H2(g) + 12(g)

2S03(g) = 2S02(g) + O2(9)

2CO(g) + O2(g) = 2C02(g)

N2O04(g) = 2NO2(g) (3)

00 80 >

1.13 In the reaction
Mg + Pb(NO3)2 — Pb + Mg(NOs) ...
Mg is reduced.

A

B_Pbis oxidised.

C  Pb(NOs)2 acts as the oxidising agent.
D

Mg(NOs3)2 acts as the oxidising agent. (3)

1.14 | The organic compound with the formula C3Hg is an example of a/an ...

A alkane.
B alkene.
C alkyne.
D __haloalkane. (3)

1.15 Which ONE of the following compounds is a product formed when butane
burns in excess oxygen?

A Ethane
B__Butanol
C_ Butene
D Carbon dioxide (3)

[45]

Conran AN 0 Pose um oer

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Physical Science/SG/P2 6 DBE/2013
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ANSWER QUESTIONS 2-8 IN THE ANSWER BOOK.

INSTRUCTIONS AND INFORMATION

a Start EACH question on a NEW page in your ANSWER BOOK.

2. Leave ONE line between two subquestions, for example between
QUESTION 2.1 and QUESTION 2.2.

3. Show the formulae and substitutions in ALL calculations.

4. Number the answers exactly the same as the questions.

QUESTION 2 (START ON A NEW PAGE.)

2.1 A learner investigates the relationship between pressure (p) and volume (V) of
a given mass of gas at 25 °C. The results are plotted as a graph of p versus

XK, as illustrated below.

P (kPa)
80 f----22--222-2--y
0 H K

2.1.1 Write down TWO variables that the learner had to keep constant

during this investigation. (2)
2.1.2 Formulate (state in words) the relationship between pressure (p) and

volume (V) that can be deduced from the above graph. (2)
2.1.3 Name the law that the learner was investigating. (1)

_ If the above investigation was carried out at a higher temperature,

would the pressure for the XK, value at x be MORE THAN, LESS
THAN or EQUAL TO 80 kPa? (2)

2.1.5 For which conditions of temperature and pressure will the law named
in QUESTION 2.1.3 NOT be obeyed? (2)

Conse A Ug Poses tm

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Physical Science/SG/P2 7 DBE/2013

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2.2 Consider the following list of chemical substances represented by the letters
A-E:

A: KI(s)  B: CO2(s) C: HO) ~—-D: CCR(2) ~~ E: -Hg(2)

In this question, only write down the letter (A-E) representing the substance.
A letter may be used more than once.

From the list above, select a substance which is a ...

2.2.1 solid with Van der Waals forces between its particles.
2.2.2 non-polar solvent.

2.2.3 solvent in which solid iodine will readily dissolve.

2.2.4 solvent in which KI(s) will dissolve.

QUESTION 3 (START ON A NEW PAGE.)

Sulphur dioxide gas (SOz) is prepared in a school laboratory by reacting dilute
sulphuric acid with sodium sulphite.

3.1 Write down a balanced equation for the reaction that takes place.

3.2 Is SO collected by the UPWARD or DOWNWARD displacement of air? Give
a reason for your answer.

3.3 Describe the effect that SO2(g) has on a person when inhaled.
The SO2 gas is now bubbled through an aqueous solution of iron(III)chloride (FeCés).

3.4 Which colour is the solution of iron(Ill)chloride before the gas is bubbled
through it?

3.5 To which colour does the solution of iron(IIl)chloride change after the gas was
bubbled through it?

3.6 Write down the half-reaction that explains the colour change observed in
QUESTION 3.5.

(1)
(1)

(1)
[13]

(3)

(2)
(1)

(1)

(1)

(2)
[10]

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Physical Science/SG/P2 8 DBE/2013

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QUESTION 4 (START ON A NEW PAGE.)

41

4.2

4.3

The following unbalanced equation represents the first stage in the industrial
preparation of nitric acid:

NH3(g) + O2(g) —- NO(g) + H20(g)
4.1.1 Balance the equation.
4.1.2 | Whatis this first stage called?
4.1.3. Name a catalyst that can be used in this reaction.
When a learner adds concentrated nitric acid to pieces of copper, a green
solution forms and a dense reddish brown vapour is released. When water is
added to the green solution, the solution turns blue.
4.2.1. Write down the NAME and FORMULA of the reddish brown vapour.
4.2.2 Identify the ion that is responsible for the blue colour of the solution.
A learner adds a few drops of silver nitrate to a test tube containing an
aqueous solution of potassium iodide and notices the formation of a
precipitate.

4.3.1. What is the colour of the precipitate that is formed?

4.3.2 Write down the balanced equation for the reaction between silver
nitrate and potassium iodide.

(2)
(2)
(1)

(2)
(2)

(2)

(3)
[14]

Coosened Lg Peet

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Physical Science/SG/P2 9 DBE/2013
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QUESTION 5 (START ON A NEW PAGE.)

5.1 One of the reactions taking place in a closed container in the contact process
for the production of sulphuric acid is:

2802(g) + O2(g) = 2803(g) AH<0
5.1.1 Is the forward reaction EXOTHERMIC or ENDOTHERMIC? (1)
5.1.2 Give a reason for your answer to QUESTION 5.1.1. (1)

513 Will the mass of SO3 produced at equilibrium INCREASE,
DECREASE or REMAIN THE SAME if a suitable catalyst is added? (2)

5.1.4 | How will the rate of the forward reaction be influenced if the:
(Write only INCREASES, DECREASES or REMAINS THE SAME.)
(a) Temperature is increased (2)

(b) Concentration of SO> is increased (2)

5.1.5 How will the yield of SO3 be affected if the:
(Write only INCREASES, DECREASES or REMAINS THE SAME.)
(a) Temperature is increased (2)
(b) Concentration of SOz is increased (2)

5.1.6 Give a suitable explanation for the answer to QUESTION 5.1.5(a),
using Le Chatelier's principle. (3)

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Physical Science/SG/P2 10 DBE/2013
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5.2. Test tube X contains 30 cm® of a 1 mol.dm® HCE solution at a temperature of
25 °C, while test tube Y contains 20 cm? of a 1 mol.dm™® HC? solution at a
temperature of 50 °C.

1,5 g of marble chunks (calcium carbonate) are added simultaneously to each

test tube.
—,
3 -3 NW —___
30 om’ 1 mol.dm™? HC2 . 20 cm? 1 mol.dm® HC?
at 25 °C +— at 50°C
wvw wvw
wvw wvyw7
ww ww
\wy \wy
X v

5.2.1 In which test tube (X or Y) will the reaction occur at the highest
rate? (1)

_ Give a reason for the answer to QUESTION 5.2.1. (2)
5.2.3 Besides the factor responsible for the difference in the rate of the
reaction in QUESTION 5.2.1, state TWO other factors that could be

used to increase the rate of the reaction in test tube X. (2)
[20]

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Physical Science/SG/P2 11 DBE/2013
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QUESTION 6 (START ON A NEW PAGE.)
6.1 Equal volumes of solutions represented by the letters A-F are supplied:

bromothymol blue

0,20 mol.dm” HCE (aq)

0,20 mol.dm® H2SO, (aq)
0,01 mol.dm® NaOH (aq)
0,25 mol.dm®> NasCO3 (aq)
0,05 mol.dm® CH3COOH (aq)

IMVOO>

In this question, only write down the letter (A-F) representing the solution.
A letter may be used more than once.

Choose from these solutions the one that:

6.1.1 Is a weak base (2)

6.1.2 Is a diprotic acid (2)

6.1.3 Has the largest concentration of hydrogen ions (2)

6.1.4 Is an acid-base indicator (2)
6.2 It is found that 30 cm? of a solution of NaOH of concentration 0,01 mol.dm*

neutralises 12 cm? of a HC? solution.

6.2.1 Write down the balanced equation for the reaction that takes
place. (3)

6.2.2 Calculate the concentration of the HC? solution. (5)
6.2.3 Will the approximate pH of the final solution at the endpoint of
the titration be SMALLER THAN 7, EQUAL TO 7 or GREATER

THAN 7? (1)
[17]

cont eon A 0 Pass tim oe

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Physical Science/SG/P2 4 DBE/2013

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QUESTION 7 (START ON A NEW PAGE.)

A learner sets up a standard electrochemical (galvanic) cell, by placing a copper
electrode in a solution of copper nitrate and a zinc electrode in a solution of zinc
nitrate. The letters B—F are labels for the components that make up this cell.

It is observed that the electron current produced flows from C to B through the

ammeter.
(a)
B c
————
p—4
E —,p F
7.1 Write down the:
7.1.1 Symbol for the metal represented by C (2)
7.1.2 Formula of a compound that can be used to prepare solution F (2)
7.1.3 Name of a salt that can be used to prepare the solution used in
component D (2)
7.2. State ONE function of component D. (1)
7.3 Is electrode B the ANODE or the CATHODE of the cell? (1)
7.4 Give a reason for your answer to QUESTION 7.3. (1)
1) What are the standard conditions for this cell? (2)
76 Will the mass of the zinc electrode INCREASE, DECREASE or REMAIN
THE SAME while the cell is delivering current? (1)
7.7 Write down the equation for the half-reaction that explains the answer to
QUESTION 7.6. (2)
7.8 Identify the oxidising agent in the reaction that takes place in this cell. (2)
7.9 Write down the cell notation for this electrochemical cell. Hel

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Physical Science/SG/P2 13 DBE/2013
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QUESTION 8 (START ON A NEW PAGE.)

Consider the following formulae of organic compounds represented by the letters
AtoE:

8.1 Which organic compound (A or B) reacts more readily with a solution of
bromine? (2)
8.2 Give a reason for your answer to QUESTION 8.1, by refering to the
difference in the structures of A and B. (2)
8.3 Name the type of reaction that occurs when B reacts with bromine. (2)
8.4 Write down the letters of TWO organic compounds from the list that belong
to the same homologous series. (2)
8.5 The IUPAC name of D is butane. Write down the IUPAC name of an isomer
of D. (2)
8.6 Write down the letter of the compound that contains the functional group of
the carboxylic acids. (2)
[12]
TOTAL: 150

Copyrant reserved UMN AATEC A

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Physical Science/SG/P2 1 DBE/2013
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DATA FOR PHYSICAL SCIENCE
PAPER 2 (CHEMISTRY)
GEGEWENS VIR NATUUR- EN SKEIKUNDE
VRAESTEL 2 (CHEMIE)
TABLE 1: PHYSICAL CONSTANTS
TABEL 1: FISIESE KONSTANTES
Avogadro's constant
Avogadro-konstante Na orlof L 6,02 x 107° mol"
Molar gas constant
Molére gaskonstante R 8,31 J.K ‘mol
Standard pressure
Standaarddruk p® 1,013 x 10° Pa
Molar gas volume at STP
Molére gasvolume by STD Vin 22,4 dm>.mol"™
Standard temperature
Standaardtemperatuur ie 273 K
TABLE 2: FORMULAE
TABEL 2: FORMULES
PIVy _ P22 CMa _ Na
T, T, cyVp 7 Np
pV =nRT K, =[H*][OH"]=107'4 at/by 298 K
n= HH = -log(H*
M pH = —log{H” |
n Een = EF’ oxidising agent ~ E*educing agent
c=
V
E’se1 = EF oksideermiddel - EF reduseermiddel
= = ‘6 o 0
a MV E cell = E cathode ~ E anode
E° ser = EF’ yatode = E* anode

Copyright reserved

GAUTENG

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Physical Science/SG/P2

Increasing oxidising ability/Toenemende oksiderende vermoé

TABLE 4A: STANDARD REDUCTION POTENTIALS
TABEL 4A: STANDAARD- REDUKSIEPOTENSIALE

3
SCE

DBE/2013

Increasing reducing ability/Toenemende reduserende vermoé

Copyright reserved

Half-reactions/Halfreaksies E°/Volt
Fo +2e€ = 2F +2,87
H,O02 + 2H* + 2e = 2H,O +1,77
MnO, + 8H* + 5e = Mn** + 4H2O +1,51
Au* +3e = Au +1,42
Ch +2e = 2Cf +1,36
Cr07* + 14H*+ Ge = = 2Cr°** + 7H2O +1,33
Oz + 4H* + 4e = 2HO +123,
MnO2 + 4H* + 2e = Mn** + 2H20 +121
pt* +2e = Pt +1,20
Bro +2e = 2Br +1,09
NO3 + 4H* + 3e = NO + 2H,0 +0,96
Ag” +e = Ag +0,80
NOs; + 2H* +e = NOs + H,O +0,80
Hg** +2e = Hg +0,79
Fe* +e = Fe* +0,77
Oz + 2H* + 2e = HO. +0,68
lo +2e = 2r +0,54
SO, + 4H* + 4e = S + 2H,0 +0,45
2H0 +O. + 4e = 40H" +0,40
Cu** + 2e = Cu +0,34
SO,7 + 4H* + 2e = SO, + 2H0 +0,17
Cu** fe Gu +0,16
Sn* fe, She +0,15
S + 2H* + 2e = HS +0,14
2H* + 2e = Hy 10,00
Fe* + 3e = Fe 0,04
Pb2* + 2e = Pb -0,13
Sn?* f200 Shi 0,14
Ni2* +2e = Ni 0,25
Co** at 202.1. .CO -0,28
Ca** +2e = Cd -0,40
Fe** +2e = Fe 0,44
cr* + 3e = Cr -0,74
Zn** +2e = Zn -0,76
2H2O + 2e = Hy + 20H -0,83
Mn** + 2e =. Mn -1,18
Ag +3e = A -1,66
Mg?* + 2e = Mg -2,37
Na* +e = Na -2,71
Ca** +2e = Ca -2,87
sr* +28 Sh -2,89
Ba”* + 2e = Ba -2,90
Cs* +e = Cs -2,92
K* +e = K -2,93
Lit +e - Li -3,05
FIOM UVOU AML AD 0 LA
GAUTENG

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Increasing oxidising ability/Toenemende oksiderende vermoé

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Physical Science/SG/P2

TABLE 4B: STANDARD REDUCTION POTENTIALS
TABEL 4B: STANDAARD- REDUKSIEPOTENSIALE

4
SCE

DBE/2013

Half-reactions/Halfreaksies E°/Volt
Lit ay = -3,05
K* fe 8 «k 2,93
Cs* +e = Cs -2,92
Ba2* +2e = Ba -2,90
srt +2e =. Sr -2,89
Ca** + 26... Ca -2,87
Na* +e = Na -2,71
Mg** + 2e = Mg 2,37
Ag +3e =. Al L1,66
Mn?* + 2e = Mn L1,18
2H20 + 2e = Ho + 20H L0,83
Zn** +2e = Zn 0,76
cr* joc | Gr, 0,74
Fe?* +2e =. Fe 0,44
Ca?* t 260 Cd 0,40
Co** ati. Cy) L0,28
Ni2* +2e€ = Ni L0,25
Sn2* +2e = &n L0,14
Pb2* + 2e = Pb 0,13
Fe* +3e = Fe 0,04
2H* + 2e = He 10,00
S + 2H* + 2e = HS +0,14
Sn* + 2e = Sn* +0,15
Cu** +e = Cur +0,16
So,7 + 4H* + 2e€ = SOQ, + 2H,0 +0,17
Cu** +2e = Cu +0,34
2H20 + Op +4e = 40H +0,40
SO. + 4H* +4e 2 § + 2H,0 +0,45
lo +2e = ar +0,54
O2 + 2H* + 2e = HO, +0,68
Fe** +e = Fe +0,77
Hg?* +2e = Hg +0,79
NO3 + 2H* +e@ = NO, +H,0 +0,80
Ag* +e = Ag +0,80
NO; + 4H* + 3e€ = NO + 2H,O +0,96
Bro +2e€ = 2Br +4,09
ptt acu | Pt +1,20
MnO2 + 4H* + 2e = Mn + 2H,0 +1,21
OQ. + 4H* ely, Are) +123
CreO77 + 14H* + Ge = 2Cr* + 7H,O (+1,33
Cl +2e = 2C6 +1,36
Au** + 3e = Au +1,42
MnO, + 8H* + 5e = Mn + 4H,0 +151
H2O2 + 2H* + 2e = 2H,0 +4,77
Fo #26; ha +2,87

Increasing reducing ability/ Toenemende reduserende vermoé

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GAUTENG

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Physical Science/SG/P2

ANSWER SHEET

CENTRE NUMBER:

EXAMINATION NUMBER:

1.1 A B Cc

1.2 A B Cc

1.3 A B c

1.4 A B c

1.5 A B c

1.6 A B Cc

1.7 A B c

1.8 A B Cc

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GAUTENG

DBE/2013
SCE

D
D
D
D
D
D
D
D

For the use of the marker
D Vir die gebruik van die nasiener
D Marks obtained

Punte behaal
B Marker's

initials
D Nasiener

se paraaf
D Marker's

number

Nasiener
D se nommer
D

(15 x 3) [45]

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