chemistry standard level paper 1 - clewett ... specimen paper chemistry standard level paper 1...

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

– 2 – SPEC/4/CHEMI/SPM/ENG/TZ0/XX

– 3 –

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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

2.� :KDW�LV�WKH�VXP�RI�WKH�FRHI¿FLHQWV�ZKHQ�WKH�HTXDWLRQ�IRU�WKH�FRPEXVWLRQ�RI�DPPRQLD�LV�EDODQFHG�XVLQJ�WKH�VPDOOHVW�SRVVLEOH�ZKROH�QXPEHUV"

___ ) ___ ) ___ ) ___ )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


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

5.� :KLFK�HOHFWURQLF�WUDQVLWLRQ�ZRXOG�DEVRUE�WKH�UDGLDWLRQ�RI�WKH�VKRUWHVW�ZDYHOHQJWK"

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

– 5 –

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7. Which element is in the f-block of the periodic table?

A. Be

B. Ce

C. Ge

D. Re

8.� :KLFK�SURSHUW\�LQFUHDVHV�GRZQ�JURXS��RI�WKH�SHULRGLF�WDEOH"

A. Melting point

B. First ionization energy

C. Atomic radius

D. Electronegativity

9. Which is the best description of ionic bonding?

$�� (OHFWURVWDWLF�DWWUDFWLRQ�EHWZHHQ�RSSRVLWHO\�FKDUJHG�LRQV

%�� (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


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

– 7 –

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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 ) ) )→ +


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


T1

T2

D.

Frac

tion

of p

artic

les


T1

T2

Kinetic energy Kinetic energy

– 9 –

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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+


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)

21.� 7KH� HTXDWLRQV� EHORZ� UHSUHVHQW� UHDFWLRQV� LQYROYHG� LQ� WKH� :LQNOHU� PHWKRG� IRU� GHWHUPLQLQJ� WKH�FRQFHQWUDWLRQ�RI�GLVVROYHG�R[\JHQ�LQ�ZDWHU�

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

22.� :KDW�DUH�WKH�SURGXFWV�ZKHQ�PROWHQ�VRGLXP�FKORULGH�LV�HOHFWURO\VHG"

Cathode Anode

A. hydrogen chlorine

B. sodium chloride

C. sodium chlorine

D. chlorine sodium

– 11 –

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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

26.� $�FRPSRXQG�GHFRORUL]HV�EURPLQH�ZDWHU�LQ�WKH�GDUN��:KLFK�VWDWHPHQW�LV�FRUUHFW"

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.


27. +RZ�FDQ�D�V\VWHPDWLF�HUURU�EH�PLQLPL]HG"

A. By taking the reading many times

%�� %\�UHSHDWLQJ�WKH�H[SHULPHQW�PDQ\�WLPHV

C. By using a more accurate measuring device

D. By evaluating and modifying the method

– 13 –

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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


29. Which part of the electromagnetic spectrum is used by 1H NMR spectroscopy?

$�� Ȗ�UD\V

B. X-rays

&�� 0LFURZDYHV

'�� 5DGLR�ZDYHV

30.� 7KH�JUDSK�VKRZV�WKH�FRQFHQWUDWLRQ�RI�VRPH�SROOXWDQWV�LQ�D�FLW\�RYHU�D��KRXU�SHULRG�

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�

chemistry standard level paper 1 - clewett ... specimen paper chemistry standard level paper 1...

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