chemistry higher level paper 1 past papers - subject...m 174cheihpe2xx chemistry higher level paper...

M17/4/CHEMI/HPM/ENG/TZ2/XX

ChemistryHigher levelPaper 1

© International Baccalaureate Organization 201717 pages

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 [40 marks].

1 hour

Thursday 11 May 2017 (afternoon)

2217 – 6113

– 2 –

88 Ra

(226

)

56 Ba

137.

33

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

.87

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

3.84

42 Mo

95.9

6

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

)

93 Np

(237

)

61 Pm (145

)

75 Re

186.

21

43 Tc (98)25 Mn

54.9

4

94 Pu (244

)

62 Sm15

0.36

76 Os

190.

23

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

5.08

46 Pd10

6.42

28 Ni

58.6

9

97 Bk

(247

)

65 Tb15

8.93

79 Au

196.

97

47 Ag

107.

87

29 Cu

63.5

5

The

Perio

dic

Tabl

e

Ato

mic

num

ber

Elem

ent

Rel

ativ

e at

omic

mas

s

98 Cf

(251

)

66 Dy

162.

50

80 Hg

200.

59

48 Cd

112.

41

30 Zn 65.3

8

99 Es (252

)

67 Ho

164.

93

81 Tl20

4.38

49 In11

4.82

31 Ga

69.7

2

13 Al

26.9

8

5 B10

.81

13

100

Fm (257

)

68 Er16

7.26

82 Pb 207.

2

50 Sn11

8.71

32 Ge

72.6

3

14 Si28

.09

6 C12

.01

14

101

Md

(258

)

69 Tm16

8.93

83 Bi

208.

98

51 Sb12

1.76

33 As

74.9

2

15 P30

.97

7 N14

.01

15

102

No

(259

)

70 Yb17

3.05

84 Po (209

)

52 Te12

7.60

34 Se78

.96

16 S32

.07

8 O16

.00

16

103

Lr (262

)

71 Lu17

4.97

85 At

(210

)

53 I12

6.90

35 Br

79.9

0

17 Cl

35.4

5

9 F19

.00

17

86 Rn

(222

)

54 Xe13

1.29

36 Kr

83.9

0

18 Ar

39.9

5

10 Ne

20.1

8

2 He

4.0018

34

56

78

910

1112

1 2 3 4 5 6 710

4 R

f(2

67)

105

Db

(268

)

106

Sg (269

)

107

Bh

(270

)

108

Hs

(269

)

109

Mt

(278

)

110

Ds

(281

)

111

Rg

(281

)

112

Cn

(285

)

113

Unt

(286

)

114

Uug

(289

)

115

Uup

(288

)

116

Uuh

(293

)

117

Uus

(294

)

118

Uuo

(294

)


– 3 –

Turn over

1. Whatisthesumofthecoefficientswhentheequationisbalancedwithwholenumbers?

—C8H18 (g) + —O2 (g) → —CO (g) + —H2O (l)

A. 26.5

B. 30

C. 53

D. 61

2. Whatisthemaximumvolume,indm3,ofCO2(g)producedwhen1.00gofCaCO3(s)reactswith20.0 cm3of2.00moldm-3 HCl(aq)?

CaCO3 (s) + 2HCl(aq)→ CaCl2(aq)+ H2O (l) + CO2 (g)

Molarvolumeofgas=22.7dm3mol-1; Mr (CaCO3) = 100.00

A. 12

20.0 2.001000

22.7× ××

B. 20.0 2.001000

22.7×

×

C. 1.00100.00

22.7×

D. 1.00100.00

2 22.7× ×

3. Whichfactorsaffectthemolarvolumeofanidealgas?

I. PressureII. TemperatureIII. Empiricalformula

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII


– 4 –

4. Whichelectrontransitionemitsradiationofthelongestwavelength?

n= 5n= 4

n= 3

n= 2

AB

C

D

n= 1

5. X,YandZrepresentthesuccessiveelements,Ne,NaandMg,butnotnecessarilyinthatorder.

First ionization energy / kJ mol-1

X 2081Y 496Z 738

Whatistheorderofincreasingatomicnumber?

A. X<Y<Z

B. X<Z<Y

C. Y<Z<X

D. Y<X<Z

6. WhichpropertyincreasesdownGroup1,thealkalimetals?

A. Atomicradius

B. Electronegativity

C. Firstionizationenergy

D. Meltingpoint


– 5 –

Turn over

7. Whichelementisalanthanide?

A. Hf

B. Tb

C. U

D. Y

8. Ammoniaisastrongerligandthanwater.Whichiscorrectwhenconcentratedaqueousammoniasolutionisaddedtodiluteaqueouscopper(II)sulfatesolution?

A. Thed-orbitalsinthecopperionsplit.

B. Thereisasmallersplittingofthed-orbitals.

C. Ammoniareplaceswaterasaligand.

D. Thecolourofthesolutionfades.

9. Howmanybondingelectronsarethereintheureamolecule?

H2N

C

H2N

O

A. 8

B. 16

C. 20

D. 24

10. Whichdoesnotshowresonance?

A. PO43-

B. C6H6

C. C6H12

D. O3


– 6 –

11. Whichmetalhasthestrongestmetallicbond?

A. Li

B. Na

C. K

D. Rb

12. WhichisthefirststepintheCFC-catalyseddestructionofozoneinUVlight?

A. CCl2F2 → CClF2+ + Cl-

B. CCl2F2 → CClF2 + Cl

C. CCl2F2 → CCl2F+ + F-

D. CCl2F2 → CCl2F + F

13. Whichstatementiscorrect?

A. Sigmabondsareformedonlybythecombinationofsatomicorbitals.

B. Pibondscanbeformedintheabsenceofsigmabonds.

C. Pibondsareformedparalleltotheaxisbetweenatoms.

D. Pibondsareformedonlybythecombinationofhybridorbitals.


– 7 –

Turn over

14. Whatcanbededucedfromthisreactionprofile?

Reactants

Products

Reactioncoordinate

Enthalpy

A. Thereactantsarelessstablethantheproductsandthereactionisexothermic.

B. Thereactantsarelessstablethantheproductsandthereactionisendothermic.

C. Thereactantsaremorestablethantheproductsandthereactionisexothermic.

D. Thereactantsaremorestablethantheproductsandthereactionisendothermic.

15. WhatcanbededucedfromthefactsthatozoneabsorbsUVradiationintheregionof340nmandmolecularoxygenintheregionof242nm?

A. Thebondbetweenatomsinmolecularoxygenisadoublebond.

B. Thebondsinozonearedelocalized.

C. Thebondsbetweenatomsinozonearestrongerthanthoseinmolecularoxygen.

D. Thebondsbetweenatomsinmolecularoxygenneedmoreenergytobreak.


– 8 –

16. TheBorn-Habercycleforpotassiumoxideisshownbelow:

2K+ (g) + O2- (g)

2K+ (g) + 2e- + O (g)

2K (g) + O (g)

K2O (s)

2K (s) + 12 O2 (g)

+612kJ

+838kJ

+428kJ

-361kJ

latticeenthalpy

WhichexpressionrepresentsthelatticeenthalpyinkJmol-1?

A. -361 + 428 + 838 + 612

B. -(-361) + 428 + 838 + 612

C. -361 + 428 + 838 - 612

D. -(-361) + 428 + 838 - 612

17. Whichion’shydrationenergyisthemostexothermic?

A. Li+

B. Na+

C. Br-

D. I-


– 9 –

Turn over

Questions18and19refertothefollowingreaction.

CaCO3 (s) + 2HCl(aq)→ CaCl2(aq)+ H2O (l) + CO2 (g)

18. WhichchangedoesnotincreasetheinitialrateofreactionwhenCaCO3 (s)isaddedto excess HCl(aq)?

A. DecreaseinthesizeoftheCaCO3 (s)particles

B. Increaseinthetemperatureofthereactionmixture

C. IncreaseintheconcentrationofHCl(aq),keepingthesamevolume

D. IncreaseinthevolumeofHCl(aq),keepingthesameconcentration

19. Whichmethodscanbeusedtomonitortheprogressofthisreaction?

I. ChangeincolourofthisreactionmixtureII. ChangeinmassofthisreactionmixtureIII. Changeinvolumeofgasevolved

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

20. WhichistrueofanArrheniusplotoflnk ( y-axis)against1T?

A. Thegraphgoesthroughtheorigin.

B. Theactivationenergycanbedeterminedfromthegradient.

C. Theinterceptonthex-axisistheactivationenergy.

D. Theinterceptonthey-axisisthefrequencyfactor,A.


– 10 –

21. Whichiscorrectaboutreactionmechanisms?

A. Aspeciesthatiszeroorderdoesnottakepartinthereaction.

B. Acatalystdoesnottakepartinthereaction.

C. Reactantsinafaststepbeforetheslowstepareincludedintherateexpression.

D. Reactantsinafaststepaftertheslowstepareincludedintherateexpression.

22. Whichvariableaffectstheequilibriumconstant,Kc?

A. Atmosphericpressure

B. Catalyst

C. Concentrationofreactants

D. Temperature

23. ComponentsXandYaremixedtogetherandallowedtoreachequilibrium.TheconcentrationsofX,Y,WandZintheequilibriummixtureare4,1,4and2moldm-3respectively.

X +2Y 2W +Z

Whatisthevalueoftheequilibriumconstant,Kc?

A. 18

B. 12

C. 2

D. 8


– 11 –

Turn over

24. WhichofthefollowingdoesnotreactwithdiluteHCl(aq)?

Extractfromactivityseries

Increasingactivity

NaZnHCu

A. Na2CO3

B. Cu

C. Zn

D. CuO

25. Whichofthefollowingiscorrect?

A. Aweakacidisaprotondonoranditsaqueoussolutionshowsgoodconductivity.

B. Aweakacidisaprotondonoranditsaqueoussolutionshowspoorconductivity.

C. Aweakacidisaprotonacceptoranditsaqueoussolutionshowsgoodconductivity.

D. Aweakacidisaprotonacceptoranditsaqueoussolutionshowspoorconductivity.

26. WhichtypeofbondisformedwhenaLewisacidreactswithaLewisbase?

A. Covalent

B. Dipole-dipole

C. Double

D. Hydrogen


– 12 –

27. Whatistheorderofincreasingacidityofthefollowingacids?

Acid Ka Acid pKa

chloroethanoic 1.3 × 10-3 hydrogenfluoride 3.3ethanoic 1.7 × 10-5 hydrogencyanide 9.3

A. chloroethanoic<ethanoic<hydrogenfluoride<hydrogencyanide

B. ethanoic<chloroethanoic<hydrogenfluoride<hydrogencyanide

C. chloroethanoic<ethanoic<hydrogencyanide<hydrogenfluoride

D. hydrogencyanide<ethanoic<hydrogenfluoride<chloroethanoic

28. Whichelementisreducedinthefollowingdecomposition?

(NH4)2Cr2O7 (s) →N2 (g) +Cr2O3 (s) + 4H2O (g)

A. N

B. H

C. Cr

D. O

29. Whichofthefollowingisnotaredoxreaction?

A. CH4 (g) + Cl2 (g) → CH3Cl (g) + HCl (g)

B. C (s) + O2 (g) → CO2 (g)

C. 2CO (g) → CO2 (g) + C (s)

D. CH3COOH(aq)+NaOH(aq)→ CH3COONa(aq)+ H2O (l)


– 13 –

Turn over

30. Whatisthestandardhalf-cellpotentialofcopperifthe“zeropotentialreferenceelectrode”ischangedfromthestandardhydrogenelectrodetoastandardzincelectrode?

E Ö / V with respect to the standard hydrogen electrode

Zn2+ (aq)+ 2e- Zn (s) -0.76

Cu2+ (aq)+ 2e- Cu (s) +0.34

A. -1.1

B. -0.34

C. +0.34

D. +1.1

31. WhataretherelativevolumesofgasgivenoffatEandFduringelectrolysisofthetwocellsinseries?Assumeallelectrodesareinert.

+ −FE

CuSO4(aq) diluteH2SO4(aq)

A. 1:1

B. 1:2

C. 2:1

D. 5:2


– 14 –

32. Whichfunctionalgroupispresentinparacetamol?

OH

NCH

O

CH3

A. Carboxyl

B. Amino

C. Nitrile

D. Hydroxyl

33. Whichdescribesthereactionbetweenahalogenandethane?

Mechanism Bond fission in halogen

A. freeradical homolytic

B. freeradical heterolytic

C. addition homolytic

D. addition heterolytic

34. Whichcompoundcontainsasecondarycarbonatom?

A. CH3CH(Cl)CH(CH3)2

B. (CH3)2CHCH2Cl

C. (CH3)3CCl

D. CH3CH2Cl


– 15 –

Turn over

35. Whichpairofisomersalwaysshowsopticalactivity?

A. Cis-trans

B. Enantiomers

C. Conformational

D. E/Z

36. Whichcompoundscanbereduced?

I. C2H4II. CH3COOHIII. CH3CHO

A. IandIIonly

B. IandIIIonly

C. IIandIIIonly

D. I,IIandIII

37. Inwhichordershouldthereagentsbeusedtoconvertbenzeneintophenylamine(aniline)?

1st reagent 2nd reagent 3rd reagent

A. NaOH Sn/conc.HCl conc.HNO3/conc.H2SO4

B. Sn/conc.HCl NaOH conc.HNO3/conc.H2SO4

C. conc.HNO3/conc.H2SO4 Sn/conc.HCl NaOH

D. NaOH conc.HNO3/conc.H2SO4 Sn/conc.HCl


– 16 –

38. Whatcanbededucedfromthefollowing1HNMRspectrum?

10 9 8 7 6 5 4 3 2 1 0Chemical shift / ppm

A. Thereisonlyonehydrogenatominthemolecule.

B. Thereisonlyonehydrogenenvironmentinthemolecule.

C. Themoleculeisahydrocarbon.

D. Thereisonlyoneisotopeintheelement.


– 17 –

39. WhatisthegraphicalrelationshipbetweennandTintheidealgasequation,pV = nRT,allothervariablesremainingconstant?

A.

n

T

B.

n

T

C.

n

T

D.

n

T

40. Whichtechniquecanbeusedtoidentifybondlengthandbondangle?

A. 1HNMRspectroscopy

B. IRspectroscopy

C. Massspectroscopy

D. X-raycrystallography


chemistry higher level paper 1 past papers - subject...m 174cheihpe2xx chemistry higher level paper...

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