14 pages
SPEC/4/CHEMI/SPM/ENG/TZ0/XX
SPECIMEN PAPER
CHEMISTRYSTANDARD LEVELPAPER 1
INSTRUCTIONS TO CANDIDATES
• Do not open this examination paper until instructed to do so.• Answer all the questions.• For each question, choose the answer you consider to be the best and indicate your choice on
the answer sheet provided.• The periodic table is provided for reference on page 2 of this examination paper.• The maximum mark for this examination paper is [30 marks].
45 minutes
© International Baccalaureate Organization 2014
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1. What is the total number of atoms in 0.50 mol of 1,4-diaminobenzene, H2NC6H4NH2?(Avogadro’s constant (L or NA) = 6.0 u1023 mol–1.)
A. 16.0 u1023
B. 48.0 u1023
C. 96.0 u1023
D. 192.0 u1023
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___ ) ___ ) ___ ) ___ )NH (g O (g N (g H O(g3 2 2 2+ → +
A. 6
B. 12
C. 14
D. 15
3. Which changes of state are endothermic processes?
I. Condensing
II. Melting
III. Subliming
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
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4.� �����J�RI�FDOFLXP�FDUERQDWH��ZKHQ�KHDWHG��SURGXFHG������J�RI�FDOFLXP�R[LGH���:KLFK�LV�WKH�FRUUHFW�H[SUHVVLRQ�IRU�WKH�SHUFHQWDJH�\LHOG�RI�FDOFLXP�R[LGH"�� ( ( ) ; ( )M Mr rCaCO CaO3 100 56 .)
CaCO (s CaO(s CO (g)3 2) )→ +
A. 56 5.00 1002.40
u u
B. 2.40 100 10056 5.00u uu
C. 56 5.00 1002.40 100u u
u
D. 2.40 10056 5.00
uu
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n = 5n = 4n = 3
n = 2
n = 1
A B
C D
6. What are the numbers of protons, neutrons and electrons in the ion 92238 2X � ?
Protons Neutrons Electrons
A. 146 92 144
B. 92 146 90
C. 92 146 94
D. 92 238 90
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7. Which element is in the f-block of the periodic table?
A. Be
B. Ce
C. Ge
D. Re
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A. Melting point
B. First ionization energy
C. Atomic radius
D. Electronegativity
9. Which is the best description of ionic bonding?
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%�� (OHFWURVWDWLF�DWWUDFWLRQ�EHWZHHQ�SRVLWLYH�LRQV�DQG�HOHFWURQV
&�� (OHFWURVWDWLF�DWWUDFWLRQ�RI�QXFOHL�WRZDUGV�VKDUHG�HOHFWURQV�LQ�WKH�ERQG�EHWZHHQ�WKH�QXFOHL
'�� (OHFWURVWDWLF�DWWUDFWLRQ�EHWZHHQ�QXFOHL
10.� :KLFK�KDV�ERQGV�ZLWK�WKH�JUHDWHVW�FRYDOHQW�FKDUDFWHU"
A. SrCl2
B. SiCl4
C. SnCl2
D. Sn
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11. Which bond is the least polar?
A. C=O in CO2
B. C–H in CH4
C. C–Cl in CCl4
D. N–H in CH3NH2
12. Which substance has a high melting point and does not conduct electricity in any state?
A. PbBr2
B. Fe
C. NaCl
D. SiO2
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13.� :KHQ������J�RI�HWKDQRO�LV�EXUQHG�XQGHU�D�ZDWHU�¿OOHG�FDORULPHWHU��WKH�WHPSHUDWXUH�RI�����J�RI�ZDWHU�LV�raised by 3.0 K. (Molar mass of ethanol = 46 g mol–1��VSHFL¿F�KHDW�FDSDFLW\�RI�ZDWHU� ������-�J–1 K–1; q = mc¨T.)
:KDW�LV�WKH�H[SUHVVLRQ�IRU�WKH�HQWKDOS\�RI�FRPEXVWLRQ��¨Hc��LQ�N-�PRO–1?
A. – 500 4.18 3.0 46
0.46u u u
B. – 500 4.18 273 3.0 46
0.46 1000× × + ×
×( )
C. – 500 4.18 3.0 46
0.46 1000u u u
u
D. – 0.46 1000
500 4.18 3.0 46u
u u u
14. Which reaction represents the average bond enthalpy of the C–H bond?
A. 14 4
14
12 2CH ( ) ( )g C(g) H g→ +
B. 14
14
14CH (g CH (g H (g4 2 2) ) )→ +
C. 14
14CH (g C(g H(g4 ) ) )→ +
D. 14
14CH (g C(s H (g4 ) ) )→ +
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15. *LYHQ�WKH�IROORZLQJ�LQIRUPDWLRQ��ZKDW�LV�WKH�VWDQGDUG�HQWKDOS\�RI�IRUPDWLRQ�� I+' � , of methane?
C(s O (g CO (g2 2) ) )+ → ∆ =H E kJH (g O g H O(l)2 2) ( )+ →1
2 2 ∆ =H F kJCH (g 2O (g CO (g 2H O(l4 2 2 2) ) ) )+ → + ∆ =H G kJ
A. E + F + G
B. E + F – G
C. E + 2F + G
D. E + 2F – G
16.� :KLFK� JUDSK� VKRZV� WKH� 0D[ZHOO�%ROW]PDQQ� HQHUJ\� GLVWULEXWLRQ� RI� D� VDPH� DPRXQW� RI� D� JDV� DW� WZR�WHPSHUDWXUHV��ZKHUH�T2 is greater than T1?
A.
Frac
tion
of p
artic
les
ZLWK�NLQHWLF�HQHUJ\
T1
T2
B.Fr
actio
n of
par
ticle
s ZLWK�NLQHWLF�HQHUJ\
T1T2
Kinetic energy Kinetic energy
C.
Frac
tion
of p
artic
les
ZLWK�NLQHWLF�HQHUJ\
T1
T2
D.
Frac
tion
of p
artic
les
ZLWK�NLQHWLF�HQHUJ\
T1
T2
Kinetic energy Kinetic energy
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17. Which changes increase the rate of this reaction, other conditions remaining constant?
CaCO (s HCl(aq CaCl (aq H O(l CO (g3 2 2 2) ) ) ) )+ → + +2
I. Using larger lumps of calcium carbonate
,,�� ,QFUHDVLQJ�WKH�WHPSHUDWXUH�RI�WKH�UHDFWLRQ�PL[WXUH
III. Increasing the concentration of hydrochloric acid
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
18.� :KLFK�FRQGLWLRQV�JLYH�WKH�JUHDWHVW�HTXLOLEULXP�\LHOG�RI�PHWKDQDO��+2CO (g)?
CO(g H (g H CO(g kJ2 2) ) ) .+ ∆ = −U H 1 8
Pressure Temperature
A. high ORZ
B. high high
C. ORZ high
D. ORZ ORZ
19.� :KLFK�RI�WKH�IROORZLQJ�LV�not amphiprotic?
A. H2O
B. HPO42–
C. H2PO4–
D. H3O+
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20.� :KLFK�FRPSRXQG�ZLOO�UHDFW�ZLWK�GLOXWH�K\GURFKORULF�DFLG��+&O��DT���WR�JLYH�RII�D�JDV"
A. Cu2O (s)
B. Cu(OH)2(s)
C. CuCO3(s)
D. CuO (s)
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2 22 2Mn (OH) O (aq MnO(OH s2(s) ) ) ( )+ →
MnO(OH s H SO (aq Mn (SO ) (s) H O(l2 4 4 2 2) ( ) ) )2 2 3+ → +
Mn (SO s I aq Mn aq I (aq SO (aq24 22
422 2) ( ) ( ) ( ) ) )+ → + +− + −
2 232
62S O aq I (aq S O aq I (aq2 2 4
− − −+ → +( ) ) ( ) )
What is the amount, in mol, of thiosulfate ions, S2O32–�DT���QHHGHG�WR�UHDFW�ZLWK�WKH�LRGLQH��,2�DT���
IRUPHG�E\������PRO�RI�GLVVROYHG�R[\JHQ"
A. 2.00
B. 3.00
C. 4.00
D. 6.00
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Cathode Anode
A. hydrogen chlorine
B. sodium chloride
C. sodium chlorine
D. chlorine sodium
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23. Which is propyl propanoate?
A. CH3CH2CH2OOCCH2CH3
B. CH3CH2CH2COOCH2CH3
C. CH3CH2CH2COCH2CH3
D. CH3CH2CH2OCH2CH2CH3
24. Which are consecutive members of a homologous series?
A. CH4, CH3Cl, CH2Cl2
B. HCOOH, CH3COOH, C2H5COOH
C. C2H2, C2H4, C2H6
D. HCOOH, HCHO, CH3OH
25. Which could form an addition polymer?
A. H2NCH2CHCHCH2NH2
B. H2N (CH2)6CO2H
C. HO (CH2)2CO2H
D. H2N (CH2)6NH2
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A. It contains C=C and is an alkene.
B. It contains C–C and is an alkene.
C. It contains C=C and is an alkane.
D. It contains C–C and is an alkane.
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27. +RZ�FDQ�D�V\VWHPDWLF�HUURU�EH�PLQLPL]HG"
A. By taking the reading many times
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C. By using a more accurate measuring device
D. By evaluating and modifying the method
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28. Which combination in the table correctly states the value and units of the gradient?
Rat
e of
reac
tion
/ 10–3
mol
dm–3
s–1
5.0
4.0
3.0
2.0
1.0
0.010 0.020 0.030 0.040 0.050 0.060Concentration of reactant / mol dm–3
Value Units
A. 3.0 10 0.6 100.050 0.010
3 3× − ×−
− −
s–1
B. 3.0 10 0.6 100.050 0.010
3 3× − ×−
− −
s
C.0.050 0.010
3.0 10 0.6 103 3
−× − ×− − s–1
D.0.050 0.010
3.0 10 0.6 103 3
−× − ×− − s
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29. Which part of the electromagnetic spectrum is used by 1H NMR spectroscopy?
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B. X-rays
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Con
cent
ratio
n
Hydrocarbons
NO
PAN
NO2
5 6 7 8 9 10 11 Noon 1 2 3 4 5 6 7 8 9 10 11 Mid- 1 2 3 4Sunrise am pm Sunset night
Time of day
:KLFK�RI�WKH�IROORZLQJ�FRXOG�not be inferred from the graph?
A. Hydrocarbons cause less harm to health than PAN.
B. An increase in hydrocarbons is caused by the morning rush hour.
C. PAN concentration increases as the intensity of sunlight increases.
D. NO2�SURGXFWLRQ�IROORZV�WKH�SURGXFWLRQ�RI�12�
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