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2011
SUPERVISOR TO ATTACH PROCESSING LABEL HERE
STUDENT NUMBER
Letter
Figures
Words
CHEMISTRY
Written examination 1
Wednesday 15 June 2011
Reading time: 11.45 am to 12.00 noon (15 minutes)
Writing time: 12.00 noon to 1.30 pm (1 hour 30 minutes)
QUESTION AND ANSWER BOOK
Structure of book
Section
Number of
questions
Number of questions
to be answered
A
B
20
8
20
8
Number of
marks
20
52
Total 72
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Instructions for Section A
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N O W RIT ING ALLOWED IN T HIS AREA
SECTION A – Multiple-choice questions
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N O W RIT ING ALLOWED IN T HIS AREA
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Instructions for Section B
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Question 2
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Question 3
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Wednesday 15 June 2011
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CH3
CH
CH3
H2N
CH
COOH
785129(5
&+(0'$7$%22.
)RUPXODVRIVRPHIDWW\DFLGV
Name
Formula
/DXULF
&+&22+
0\ULVWLF
&+&22+
3DOPLWLF
&+&22+
3DOPLWROHLF
&+&22+
6WHDULF
&+&22+
2OHLF
&+&22+
/LQROHLF
&+&22+
/LQROHQLF
&+&22+
$UDFKLGLF
&+&22+
$UDFKLGRQLF
&+&22+
6WUXFWXUDOIRUPXODVRIVRPHLPSRUWDQWELRPROHFXOHV
CH2OH
H
HO
H
O
H
H
OH
H
HOCH2
H
O
H
O
OH
H
OH
OH
CH2OH
H
C
OH
H
C
OH
H
C
OH
H
H
sucrose
HOCH2
glycerol
OH
O
HH
HH
HO
H
deoxyribose
NH2
N
HC
C
N
C
C
N
HN
CH
N
H
adenine
H2N
C
O
NH2
O
C
C
C
N
C
C
guanine
N
N
CH
N
H
O
C
N
H
cytosine
HN
CH
CH
O
C
N
H
O
C
CH
thymine
CH3
O
P
O
O
phosphate
&+(0'$7$%22.
11. Acid-base indicators
Name
pH range
Colour change
Base
Acid
7K\PROEOXH
0HWK\ORUDQJH
%URPRSKHQROEOXH
0HWK\OUHG
%URPRWK\PROEOXH
3KHQROUHG
3KHQROSKWKDOHLQ
±
±
±
±
±
±
±
UHG
UHG
\HOORZ
UHG
\HOORZ
\HOORZ
FRORXUOHVV
Ka
\HOORZ
\HOORZ
EOXH
\HOORZ
EOXH
UHG
UHG
î±
î±
î±
î±
î±
î±
î±
$FLGLW\FRQVWDQWVKaRIVRPHZHDNDFLGVDWƒ&
Name
Formula
Ka
$PPRQLXPLRQ
%HQ]RLF
%RULF
(WKDQRLF
+\GURF\DQLF
+\GURÀXRULF
+\SREURPRXV
+\SRFKORURXV
/DFWLF
0HWKDQRLF
1LWURXV
3URSDQRLF
1+
&+&22+
+%2
&+&22+
+&1
+)
+2%U
+2&O
+&+2
+&22+
+12
&+&22+
î±
î±
î±
î±
î±
î±
î±
î±
î±
î±
î±
î±
9DOXHVRIPRODUHQWKDOS\RIFRPEXVWLRQRIVRPHFRPPRQIXHOVDW.DQGN3D
ǻHc N-PRO–1
Substance
Formula
State
K\GURJHQ
+
J
±
FDUERQJUDSKLWH
&
V
±
PHWKDQH
&+
J
±
HWKDQH
&+
J
±
SURSDQH
&+8
J
±
EXWDQH
&+
J
±
SHQWDQH
&+
±
KH[DQH
&+
±
RFWDQH
&8+
±
HWKHQH
&+
J
±
PHWKDQRO
&+2+
±
HWKDQRO
&+2+
±
SURSDQRO
&+&+&+2+
±
SURSDQRO
&+&+2+&+
±
JOXFRVH
&+2
V
±
(1'2)'$7$%22.