CHEMISTRY STANDARD LEVEL PAPER 1 - … PAST PAPERS - YEAR/2013 Novembe… · CHEMISTRY STANDARD...

8813-6104 14 pages

N13/4/CHEMI/SPM/ENG/TZ0/XX

Monday 18 November 2013 (afternoon)

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 2013

88136104

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–2– N13/4/CHEMI/SPM/ENG/TZ0/XX

88 Ra

(226

)

56 Ba13

7.34

38 Sr87

.62

20 Ca

40.0

8

12 Mg

24.3

1

4 Be 9.012

‡†

89 ‡

Ac

(227

)

57 †

La13

8.91

39 Y88

.91

21 Sc 44.9

6

90 Th23

2.04

58 Ce

140.

12

72 Hf

178.

49

40 Zr 91.2

2

22 Ti47

.90

91 Pa23

1.04

59 Pr14

0.91

73 Ta18

0.95

41 Nb

92.9

1

23 V50

.94

92 U23

8.03

60 Nd

144.

24

74 W18

3.85

42 Mo

95.9

4

24 Cr

52.0

0

55 Cs

132.

91

37 Rb

85.4

7

19 K39

.10

11 Na

22.9

9

3 Li 6.941 H 1.011 Fr87 (223

)

Ato

mic

num

ber

Elem

ent

Rela

tive

atom

ic m

ass

93 Np

(237

)

61 Pm14

6.92

75 Re

186.

21

43 Tc 98.9

1

25 Mn

54.9

4

94 Pu (242

)

62 Sm15

0.35

76 Os

190.

21

44 Ru

101.

07

26 Fe 55.8

5

95 Am

(243

)

63 Eu15

1.96

77 Ir19

2.22

45 Rh

102.

91

27 Co

58.9

3

96 Cm

(247

)

64 Gd

157.

25

78 Pt19

5.09

46 Pd10

6.42

28 Ni

58.7

1

97 Bk (247

)

65 Tb15

8.92

79 Au

196.

97

47 Ag

107.

87

29 Cu

63.5

5

The

Peri

odic

Tab

le

98 Cf

(251

)

66 Dy

162.

50

80 Hg

200.

59

48 Cd

112.

40

30 Zn 65.3

7

99 Es (254

)

67 Ho

164.

93

81 Tl20

4.37

49 In11

4.82

31 Ga

69.7

2

13 Al

26.9

8

5 B10

.81

3

100

Fm (257

)

68 Er16

7.26

82 Pb20

7.19

50 Sn11

8.69

32 Ge

72.5

9

14 Si28

.09

6 C12

.01

4

101

Md

(258

)

69 Tm16

8.93

83 Bi20

8.98

51 Sb12

1.75

33 As

74.9

2

15 P30

.97

7 N14

.01

5

102

No

(259

)

70 Yb

173.

04

84 Po (210

)

52 Te12

7.60

34 Se78

.96

16 S32

.06

8 O16

.00

6

103

Lr (260

)

71 Lu17

4.97

85 At

(210

)

53 I12

6.90

35 Br 79.9

0

17 Cl

35.4

5

9 F19

.00

7

86 Rn

(222

)

54 Xe

131.

30

36 Kr

83.8

0

18 Ar

39.9

5

10 Ne

20.1

8

2 He

4.000

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1. Whatisthetotalnumberofoxygenatomsin0.200molofglucose,C6H12O6?

A. 1.20

B. 6.00 C. 1.20×1023

D. 7.22×1023

2. Whichrepresentsanempiricalformula?

A. C2H4 B. B2H6 C. Al2O3 D. C6H6

3. What are the coefficients ofH2SO4(aq) andH3PO4(aq)when the following equation is balancedusingthesmallestpossiblewholenumbers?

3 4 2 2 4 4 3 4___ Ca (PO ) (s) ___ H SO (aq) ___CaSO (s) ___ H PO (aq)+ → +

Coefficient of H2SO4 (aq)

Coefficient of H3PO4 (aq)

A. 1 2

B. 2 3

C. 3 1

D. 3 2

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4. Whatisthepressure,inPa,if3molofgasoccupies500cm3at25 C° ?

Given: 1 18.31JK molR − −=3 3 3 310 m 10 cm− =

A. 3 8.31 298500

× ×

B. 3 8.31 250.0005× ×

C. 3 8.31 25500

× ×

D. 3 8.31 2980.0005

× ×

5. 7.102g of 12 4Na SO ( 142.04gmol )M −= is dissolved in water to prepare 0.5000dm3 of solution.

WhatistheconcentrationofNa 2SO4inmoldm–3?

A. 2.500×10–2

B. 1.000×10–1

C. 1.000×10

D. 1.000×102

6. Whatarethenumbersofneutronsandelectronsintheiodineion,125I+?

Neutrons Electrons

A. 53 53

B. 72 52

C. 72 53

D. 125 52

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7. Intheemissionspectrumofthehydrogenatom,whichelectronictransitionwouldproducealineintheultravioletregionoftheelectromagneticspectrum?

A. 1 3n n= → =

B. 3 1n n= → =

C. 3 2n n= → =

D. 10 2n n= → =

8. Whichstatementsarecorrectformagnesium?

I. Theelectronarrangementoftheatomis2,8,2.

II. Theatomhastwoelectronsinitsoutermost(valence)energylevel.

III. Itsoxideisbasic.

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

9. Whichseriesisarrangedinorderofincreasingradius?

A. F Cl Cl−< <

B. Rb K Na< <

C. 3+ 2 +Al Mg Na+< <

D. I Br Cl− − −< <

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10. Whatistheformulaofcalciumnitride?

A. Ca3N2

B. Ca 2N3

C. Ca(NO2)2

D. Ca(NO3)2

11. Whichcompoundshaveanioniclatticestructureinthesolidstate?

I. Silicondioxide

II. Sodiumfluoride

III. Ammoniumnitrate

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

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12. TheLewis(electrondot)structureofaspirinisrepresentedbelow.

C

O

OH

O

CC O

H

HH

β

γ

α

Whataretheapproximatevaluesofthebondanglesα,βandγ, inthemolecule?

α β γ

A. 90� 104.5� 104.5�

B. 90� 120� 120�

C. 109.5� 120� 120�

D. 109.5� 104.5� 120�

13. Whichintermolecularforcesexistbetweenthefollowingmolecules?

H2Se CO H2

A. vanderWaals’anddipole-dipole vanderWaals’anddipole-dipole vanderWaals’only

B. vanderWaals’,dipole-dipoleandhydrogenbonding vanderWaals’only vanderWaals’and

hydrogenbonding

C. vanderWaals’,dipole-dipoleandhydrogenbonding

vanderWaals’anddipole-dipole vanderWaals’only

D. vanderWaals’anddipole-dipole vanderWaals’anddipole-dipole

vanderWaals’andhydrogenbonding

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14. Whichcompoundhasthehighestboilingpoint?

A. CH3CH3

B. CH3OH

C. CH3CH2OH

D. CH3CH2CH3

15. Whichprocessesareexothermic?

I. 3 2 3 2 2 2CH CH CH (g) 5O (g) 3CO (g) 4H O(g)+ → +

II. 2Cl (g) 2Cl (g)→

III. 3 2 3 2 2CH CH COOH(aq) NaOH(aq) CH CH COONa (aq) H O(l)+ → +

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

16. Considerthefollowingtwoequations.

22Ca (s) O (g) 2CaO(s)+ → kJH x∆ = +Ö

2 2 3Ca (s) 0.5O (g) CO (g) CaCO (s)+ + → kJH y∆ = +Ö

Whatis H∆ Ö,inkJ,forthefollowingreaction?

2 3CaO(s) CO (g) CaCO (s)+ →

A. y–0.5x

B. y–x

C. 0.5–y

D. x–y

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17. Whichfactorscanincreasetherateofachemicalreaction?

I. Increasingthepressureingaseousreactions

II. Increasingthetemperatureingaseousreactions

III. Increasingtheparticlesizeofasolidinareaction

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

18. The diagram below shows the energy changes for a reaction with and without a catalyst.Whichsymbolsrepresenttheactivationenergy,Ea,andtheenthalpychange, H∆ ,forthereactionwithacatalyst?

y

x

z

Products

Reactants

Extent of reaction

Energy

Ea (with a catalyst) H∆

A. x z

B. y z

C. z x

D. y–x z

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19. Whatistheequilibriumconstantexpression,Kc,forthefollowingreaction?

2 2 22H S(g) 2H (g) S (g)+�

A.2

2c 2

2 2

[H S][H ] [S ]

K =

B. 2 2c

2

[H ][S ][H S]

K =

C. 2 2c

2

2[H ] [S ]2[H S]

K +=

D.2

2 2c 2

2

[H ] [S ][H S]

K =

20. WhathappenstothepositionofequilibriumandthevalueofKcinthefollowingreactionwhenthetemperatureisdecreased?

2 4 2N O (g) 2NO (g) 57.2kJH∆ = +� Ö

Position of equilibrium Value of Kc

A. shiftstowardsreactants decreases

B. shiftstowardsreactants increases

C. shiftstowardsproducts decreases

D. shiftstowardsproducts increases

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21. Whataretheconjugateacid–basepairsinthefollowingreaction?

3 2 2 3HCO (aq) H O(l) OH (aq) H CO (aq)− −+ +�

Brønsted–Lowry acid

Brønsted–Lowrybase Conjugate acid Conjugate base

A. HCO3–(aq) H2O(l) H2CO3(aq) OH–(aq)

B. H2CO3(aq) OH–(aq) HCO3–(aq) H2O(l)

C. H2O(l) HCO3–(aq) H2CO3(aq) OH–(aq)

D. H2O(l) HCO3–(aq) OH–(aq) H2CO3(aq)

22. Whichgroupofthreecompoundscontainsonlyweakacidsandbases?

A. Ba(OH)2 CH3NH2 CH3COOH

B. CH3CH2CH2COOH CH3CH2NH2 HCOOH

C. NH3 HNO3 CH3CH2COOH

D. NH3 NaOH H2CO3

23. WhatisthenameofCo3(PO4)2?

A. Cobalt(II)phosphite

B. Cobalt(II)phosphate

C. Cobalt(III)phosphite

D. Cobalt(III)phosphate

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24. Considerthefollowingreaction.

3 2 2 2Sn (s) 4HNO (aq) SnO (s) 4NO (g) 2H O(g)+ → + +

Whichstatementiscorrect?

A. HNO3istheoxidizingagentbecauseitundergoesoxidation.

B. HNO3isthereducingagentbecausetheoxidationnumberofnitrogenchangesfrom+5to+4.

C. Snistheoxidizingagentbecauseitundergoesreduction.

D. Snisthereducingagentbecausetheoxidationnumberoftinchangesfrom0to+4.

25. Whichstatementsarecorrectfortheelectrolysisofmoltenlead(II)bromide,PbBr2(l)?

I. Pb2+isreducedatthenegativeelectrode(cathode).

II. Br–isoxidizedatthepositiveelectrode(anode).

III. Bubblesofabrowngasareobservedatthenegativeelectrode(cathode).

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

26. Whatisthenameof(CH3)3CCOCH3,applyingIUPACrules?

A. 2,2-dimethylbutan-3-one

B. 3,3-dimethylbutan-2-one

C. 2,2-dimethylbutanal

D. 3,3-dimethylbutanal

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27. Whatisthefunctionoftheultravioletlightusedinthereactionbetweenethaneandbromine?

A. Itcausesbrominefreeradicalstoformbrominemolecules.

B. Itcausesbromideionstoformbrominemolecules.

C. Itcausesbrominemoleculestoformbromideions.

D. Itcausesbrominemoleculestoformbrominefreeradicals.

28. What is thecondensedstructural formulaof theorganiccompound that formswhenconcentratedsulfuricacidisaddedto2,3-dimethylbut-2-ene,(CH3)2C=C(CH3)2,followedbywater?

A. (CH3)2CHC(OSO3H)(CH3)2

B. (CH3)2CHC(OH)(CH3)2

C. (CH3)2C(OH)C(OH)(CH3)2

D. (CH3)2(CH2)2(CH3)2

29. Whichorganicproductformsinthefollowingreaction?

3 272 2K Cr O /H

reflux(CH ) CHOH+

→

A. Ethanoicacid

B. Propanal

C. Propanone

D. Propanoicacid

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30. Astudentmeasuredthemassandvolumeofapieceofsilverandrecordedthefollowingvalues.

Massofemptyweighingbottle 1.0800g

Massofweighingbottlewithpieceofsilver 11.5700g

Volumeofsilver 1.00cm3

Whichvalue,ingcm–3,forthedensityofsilvershouldthestudentreportinherlaboratorynotebook?

A. 10.49

B. 10.4900

C. 10.5

D. 10.500

CHEMISTRY STANDARD LEVEL PAPER 1 - … PAST PAPERS - YEAR/2013 Novembe… · CHEMISTRY STANDARD...

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Transcript of CHEMISTRY STANDARD LEVEL PAPER 1 - … PAST PAPERS - YEAR/2013 Novembe… · CHEMISTRY STANDARD...