of 16 /16
READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. DO NOT WRITE IN ANY BARCODES. Answer all questions. Electronic calculators may be used. A copy of the Periodic Table is printed on page 16. You may lose marks if you do not show your working or if you do not use appropriate units. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question. CHEMISTRY 0620/33 Paper 3 Theory (Core) October/November 2017 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. Cambridge International Examinations Cambridge International General Certificate of Secondary Education This document consists of 13 printed pages and 3 blank pages. [Turn over IB17 11_0620_33/4RP © UCLES 2017 *5730339853* The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

11 0620 33 4RP - GCE Guide (0620)/0620...CHEMISTRY 0620/33 Paper 3 Theory (Core) October/November 2017 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials

  • Author
    others

  • View
    28

  • Download
    0

Embed Size (px)

Text of 11 0620 33 4RP - GCE Guide (0620)/0620...CHEMISTRY 0620/33 Paper 3 Theory (Core) October/November...

  • READ THESE INSTRUCTIONS FIRST

    Write your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use an HB pencil for any diagrams or graphs.Do not use staples, paper clips, glue or correction fluid.DO NOT WRITE IN ANY BARCODES.

    Answer all questions.Electronic calculators may be used.A copy of the Periodic Table is printed on page 16.You may lose marks if you do not show your working or if you do not use appropriate units.

    At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.

    CHEMISTRY 0620/33

    Paper 3 Theory (Core) October/November 2017

    1 hour 15 minutes

    Candidates answer on the Question Paper.

    No Additional Materials are required.

    Cambridge International ExaminationsCambridge International General Certificate of Secondary Education

    This document consists of 13 printed pages and 3 blank pages.

    [Turn overIB17 11_0620_33/4RP© UCLES 2017

    *5730339853*

    The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

  • 2

    0620/33/O/N/17© UCLES 2017

    1 Thediagramshowsthestructuresoffivesubstances,A,B,C,DandE.

    A B D EC

    N NO

    SO

    O C OCl –

    Cl –

    NH4+

    NH4+

    Cl –

    Cl –

    NH4+

    NH4+

    Cl –

    Cl –

    NH4+

    NH4+

    H

    H HN

    Answerthefollowingquestionsusingonlythestructuresinthediagram. Eachstructuremaybeusedonce,morethanonceornotatall.

    (a) Whichstructure,A,B,C,D or E,

    (i) isacompoundwhichisusedasafertiliser, ................................................................. [1]

    (ii) isadiatomicmolecule, ................................................................................................. [1]

    (iii) containschlorideions, .................................................................................................. [1]

    (iv) isagaswhichturnsdampredlitmuspaperblue, ........................................................ [1]

    (v) isanelement? .............................................................................................................. [1]

    (b) Structure Aissulfurdioxide. Sulfurdioxideisanatmosphericpollutant.

    (i) State onesourceofsulfurdioxide.

    ....................................................................................................................................... [1]

    (ii) Giveoneadverseeffectofsulfurdioxideonhealth.

    ....................................................................................................................................... [1]

    (c) Anisotopeofnitrogenisrepresentedbythesymbol15N7 .

    Deducethenumberofprotons,neutronsandelectronsinthisisotopeofnitrogen.

    numberofprotons .....................................................................................................................

    numberofneutrons ...................................................................................................................

    numberofelectrons ...................................................................................................................[3]

    [Total:10]

  • 3

    0620/33/O/N/17© UCLES 2017 [Turn over

    2 Theatmosphere of the planetVenus contains 96.4%carbondioxide, 3.5%nitrogenand smallamountsofothergases.

    (a) DescribehowVenus’atmospherediffersfromtheEarth’satmosphere. Givethreedifferences.

    1 .................................................................................................................................................

    ....................................................................................................................................................

    2 .................................................................................................................................................

    ....................................................................................................................................................

    3 .................................................................................................................................................

    ....................................................................................................................................................[3]

    (b) Describeatestforcarbondioxide.

    test .............................................................................................................................................

    result ..........................................................................................................................................[2]

    (c) Venus’atmospherealsocontainssmallamountsofwaterandargon.

    (i) Waterisacovalentcompound.

    Completethediagramtoshow ● thearrangementofelectronsinamoleculeofwater, ● thesymbolsoftheatomspresent.

    Showoutershellelectronsonly.

    [2]

    (ii) Themeltingpointofargonis–189°C. Theboilingpointofargonis–186°C.

    Whatisthephysicalstateofargonat–200°C? Explainyouranswer.

    .............................................................................................................................................

    ....................................................................................................................................... [2]

  • 4

    0620/33/O/N/17© UCLES 2017

    (iii) Argonisunreactive.

    Explainwhyargonisunreactiveintermsofitselectronicstructure.

    .............................................................................................................................................

    ....................................................................................................................................... [1]

    (d) CloudsofsulfuricacidarepresentinVenus’atmosphere. Sulfuricacidreactswithmagnesiumcarbonate.

    H2SO4 + MgCO3 MgSO4 + CO2 + H2O

    (i) Writethewordequationforthisreaction.

    ....................................................................................................................................... [2]

    (ii) Calculatetherelativemolecularmassofsulfuricacid,H2SO4. UseyourPeriodicTabletohelpyou.

    relativemolecularmass=..............................[2]

    (e) SulfurdioxideisfoundintheatmospheresofbothVenusandtheEarth.

    (i) State oneuseofsulfurdioxide.

    ....................................................................................................................................... [1]

    (ii) Sulfurdioxidedissolvesinwatertoformanacidicsolution.

    Which oneofthefollowingpHvaluesisacidic? Putacirclearoundthecorrectanswer.

    pH2pH7pH9pH14[1]

    [Total:16]

  • 5

    0620/33/O/N/17© UCLES 2017 [Turn over

    3 Thelistshowssomeofthecompoundsusedtomanufactureink.

    calciumcarbonate

    ethanoicacid

    iron(II)sulfatepotassiumdichromate(VI)

    sodiumsulfate

    sulfuricacid

    (a) Whichcompoundispresentinlimestone?

    .............................................................................................................................................. [1]

    (b) Hydratediron(II)sulfateisheatedgently.

    FeSO4.7H2O FeSO4 + 7H2O

    (i) Describe what you would see when a test-tube containing a small amount ofhydratediron(II)sulfateisheatedgently.

    ....................................................................................................................................... [1]

    (ii) Describeatestforaqueousiron(II)ions.

    test ......................................................................................................................................

    result ...................................................................................................................................[2]

    (c) Iron(II)sulfatecanbepreparedbyreactinganexcessofironwithdilutesulfuricacid.

    (i) Completethechemicalequationforthisreaction.

    Fe + H2SO4 FeSO4 + ............[1]

    (ii) Describehowyoucouldremovetheexcessironfromthemixtureformed.

    ....................................................................................................................................... [1]

  • 6

    0620/33/O/N/17© UCLES 2017

    (d) (i) Completethestructureofethanoicacidtoshowalloftheatomsandallofthebonds.

    C C

    O

    [2]

    (ii) Giveoneobservationwhenaqueousethanoicacidreactswithmagnesium.

    ....................................................................................................................................... [1]

    (e) Blackinkcontainsamixtureofdifferentcoloureddyes.

    Drawalabelleddiagramoftheapparatususedtoseparatethesedifferentcoloureddyesbychromatography.

    [3]

    (f) Blueinkwasplacedatthebottomofabeakercontainingwater. After2days,abluecolourhadspreadthroughoutthebeaker.

    at the start after 6 hours after 2 days

    water

    ink

    Explaintheseobservationsusingthekineticparticlemodel.

    ....................................................................................................................................................

    ....................................................................................................................................................

    ....................................................................................................................................................

    ....................................................................................................................................................

    .............................................................................................................................................. [3]

    [Total:15]

  • 7

    0620/33/O/N/17© UCLES 2017 [Turn over

    4 Thetableshowsthepropertiesoffoursubstances.

    substance boilingpointelectrical

    conductivityofsolid

    electricalconductivitywhenmolten

    densitying/cm3

    aluminium high conducts conducts 2.70

    diamond 3.51

    potassiumbromide high doesnotconduct conducts 2.75

    sulfur low doesnotconduct 2.07

    (a) Completethetabletoshowtheelectricalconductivityofsoliddiamondandmoltensulfur. [2]

    (b) Giveonepieceofevidencefromthetablethatshowsthatsulfurisasimplecovalentsubstance.

    .............................................................................................................................................. [1]

    (c) Whatinformationinthetableshowsthatpotassiumbromideisanioniccompound?

    ....................................................................................................................................................

    .............................................................................................................................................. [2]

    (d) (i) State onepropertyofaluminiumgiven in the tablewhichmakes it suitable formakingaircraft.

    ....................................................................................................................................... [1]

    (ii) Aluminiumoxideisobtainedfromtheorebauxite.

    Whatmethodisusedtoextractaluminiumfromaluminiumoxide?

    ....................................................................................................................................... [1]

    (e) Moltenpotassiumbromidecanbeelectrolysed.

    Predicttheproductsofthiselectrolysisat

    thepositiveelectrode(anode), ..................................................................................................

    thenegativeelectrode(cathode). ..............................................................................................[2]

  • 8

    0620/33/O/N/17© UCLES 2017

    (f) (i) Which twostatementsdescribethestructureandbondingindiamond? Ticktwoboxes.

    Diamondhasionicbonds.

    Diamondhasagiantstructure.

    Diamondisasimplemolecule.

    Diamondhascovalentbonds.[1]

    (ii) Giveoneuseofdiamond.

    ....................................................................................................................................... [1]

    [Total:11]

  • 9

    0620/33/O/N/17© UCLES 2017 [Turn over

    5 Leadisextractedfromanorewhichcontainslead(II)sulfide.

    (a) Theoreisfirstheatedinair.

    Balancethechemicalequationforthisreaction.

    2PbS+......O2 2PbO+......SO2[2]

    (b) Thelead(II)oxideproducedisthenreducedwithcarbon.

    PbO+C Pb+CO

    (i) Howdoesthisequationshowthatthelead(II)oxideisreduced?

    ....................................................................................................................................... [1]

    (ii) LeadisametalinGroupIV. Ironisatransitionelement.

    Givetwophysicalpropertiesthataretypicaloftransitionelements.

    1 ..........................................................................................................................................

    2 ..........................................................................................................................................[2]

    (c) Statetheconditionsneededforirontorust.

    .............................................................................................................................................. [2]

    (d) Ironfromtheblastfurnaceisconvertedintosteelusingoxygenandbasicoxides.

    (i) Whatisthepurposeoftheoxygen?

    ....................................................................................................................................... [1]

    (ii) Which oneoftheseoxidesisabasicoxide? Putacirclearoundthecorrectanswer.

    carbon dioxide nitrogen dioxide potassium oxide sulfur trioxide

    Explainyouranswer.

    .............................................................................................................................................[2]

  • 10

    0620/33/O/N/17© UCLES 2017

    (e) Steelisanalloy.

    Whatismeantbythetermalloy?

    ....................................................................................................................................................

    .............................................................................................................................................. [2]

    (f) (i) Giveonecommonuseofmildsteel.

    ....................................................................................................................................... [1]

    (ii) Giveonecommonuseofstainlesssteel.

    ....................................................................................................................................... [1]

    [Total:14]

  • 11

    0620/33/O/N/17© UCLES 2017 [Turn over

    6 Thediagramshowsafractionatingcolumnusedforthefractionaldistillationofpetroleum.

    kerosene fraction

    F

    gasoline fraction

    refinery gas

    (a) Onthediagram,write ● theletterXtoshowwherethetemperatureinthefractionatingcolumnishighest, ● theletterBtoshowwherebitumenisremovedfromthefractionatingcolumn.

    [2]

    (b) GivethenameofthefractionlabelledFinthediagram.

    .............................................................................................................................................. [1]

    (c) Refinerygascontainsmethane,ethaneandpropane.

    (i) Drawthestructureofamoleculeofethaneshowingalloftheatomsandallofthebonds.

    [1]

    (ii) Methanecanbeconvertedtohydrogenbyreactionwithsteam.

    Balancethechemicalequationforthisreaction.

    CH4 + H2O CO + ......H2[1]

    (iii) Thisreactionisendothermic.

    Whatismeantbythetermendothermic?

    ....................................................................................................................................... [1]

  • 12

    0620/33/O/N/17© UCLES 2017

    (d) Somepetroleumfractionsarecrackedtoformdifferenthydrocarbons.

    Describetheprocessofcracking.

    Inyouranswer ● explainwhatismeantbythetermcracking, ● statetheconditionsneededtocrackhydrocarbons.

    ....................................................................................................................................................

    ....................................................................................................................................................

    ....................................................................................................................................................

    ....................................................................................................................................................

    ....................................................................................................................................................

    ....................................................................................................................................................

    ..............................................................................................................................................[4]

    (e) Thetableshowssomepropertiesoffouralkanes.

    alkanenumberof

    carbonatomsinonemolecule

    boilingpoint/°C

    methane 1 –164

    ethane 2 –88

    propane 3

    butane 4 0

    (i) How does the boiling point change as the number of carbon atoms in one moleculeincreases?

    ....................................................................................................................................... [1]

    (ii) Predicttheboilingpointofpropane.

    ....................................................................................................................................... [1]

    (iii) Describethearrangementandseparationofthemoleculesinliquidbutane.

    arrangement .......................................................................................................................

    separation ...........................................................................................................................[2]

    [Total:14]

  • 13

    0620/33/O/N/17© UCLES 2017

    BLANK PAGE

  • 14

    0620/33/O/N/17© UCLES 2017

    BLANK PAGE

  • 15

    0620/33/O/N/17© UCLES 2017

    BLANK PAGE

    Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity.

    To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cie.org.uk after the live examination series.

    Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

  • 16

    0620/33/O/N/17© UCLES 2017

    Gro

    up

    The

    Perio

    dic

    Tabl

    e of

    Ele

    men

    ts

    1 Hhy

    drog

    en1

    2 He

    heliu

    m4

    III

    IIIIV

    VV

    IV

    IIV

    III

    3 Lilit

    hium 7

    4 Be

    bery

    llium

    9

    atom

    ic n

    umbe

    r

    atom

    ic s

    ymbo

    l

    Key

    nam

    ere

    lativ

    e at

    omic

    mas

    s

    11 Na

    sodi

    um23

    12 Mg

    mag

    nesi

    um24

    19 Kpo

    tass

    ium

    39

    20 Ca

    calc

    ium

    40

    37 Rb

    rubi

    dium

    85

    38 Sr

    stro

    ntiu

    m88

    55 Cs

    caes

    ium

    133

    56 Ba

    bariu

    m13

    7

    87 Frfra

    nciu

    m–

    88 Ra

    radi

    um –

    5 B boron 11 13 Al

    alum

    iniu

    m27 31 Ga

    gallium70 49 In indium

    115

    81 Tlthallium

    204

    6 Ccarbon

    12 14 Si

    silicon

    28 32 Ge

    germanium

    73 50 Sn tin 119 82 Pb

    lead207

    22 Tititanium

    48 40 Zrzirconium

    91 72 Hf

    hafnium

    178

    104

    Rf

    rutherfordium

    23 Vvanadium

    51 41 Nb

    niobium

    93 73 Tatantalum

    181

    105

    Db

    dubnium

    24 Cr

    chromium

    52 42 Mo

    molybdenum

    96 74 Wtungsten

    184

    106

    Sg

    seaborgium

    25 Mn

    manganese

    55 43 Tctechnetium

    – 75 Re

    rhenium

    186

    107

    Bh

    bohrium

    26 Fe iron

    56 44 Ru

    ruthenium

    101

    76 Os

    osmium

    190

    108

    Hs

    hassium

    27 Co

    cobalt

    59 45 Rh

    rhodium

    103

    77 Iriridium

    192

    109

    Mt

    meitnerium

    28 Ni

    nickel

    59 46 Pd

    palladium

    106

    78 Pt

    platinum

    195

    110

    Ds

    darmstadtium

    29 Cu

    copper

    64 47 Ag

    silver

    108

    79 Au

    gold

    197

    111

    Rg

    roentgenium

    30 Zn zinc

    65 48 Cd

    cadmium

    112

    80 Hg

    mercury

    201

    112

    Cn

    copernicium

    114 Fl

    flerovium

    116

    Lvlivermorium

    7 Nnitrogen

    14 15 Pphosphorus

    31 33 As

    arsenic

    75 51 Sb

    antimony

    122

    83 Bi

    bismuth

    209

    8 Ooxygen

    16 16 S sulfur

    32 34 Se

    selenium

    79 52 Tetellurium

    128

    84 Po

    polo

    nium

    9 Fflu

    orin

    e19 17 Cl

    chlo

    rine

    35.5

    35 Br

    brom

    ine

    80 53 Iio

    dine

    127

    85 At

    asta

    tine

    10 Ne

    neon 20 18 Ar

    argo

    n40 36 Kr

    kryp

    ton

    84 54 Xe

    xeno

    n13

    1

    86 Rn

    rado

    n–

    21 Sc

    scan

    dium

    45 39 Yyt

    trium 89

    57–7

    1la

    ntha

    noid

    s

    89–1

    03ac

    tinoi

    ds

    57 Lala

    ntha

    num

    139

    89 Ac

    lant

    hano

    ids

    actin

    oids

    The

    volu

    me

    of o

    ne m

    ole

    of a

    ny g

    as is

    24

    dm3 a

    t roo

    m te

    mpe

    ratu

    re a

    nd p

    ress

    ure

    (r.t.p

    .).

    actin

    ium

    58 Ce

    ceriu

    m140

    90 Th thorium

    232

    59 Pr

    praseodymium

    141

    91 Pa

    protactinium

    231

    60 Nd

    neodymium

    144

    92 Uuranium

    238

    61 Pm

    promethium

    – 93 Np

    neptunium

    62 Sm

    samarium

    150

    94 Pu

    plutonium

    63 Eu

    europium

    152

    95 Am

    americium

    64 Gd

    gadolinium

    157

    96 Cm

    curium

    65 Tb terbium

    159

    97 Bk

    berkelium

    66 Dy

    dysprosium

    163

    98 Cf

    californium

    67 Ho

    holmium

    165

    99 Es

    einsteinium

    68 Er

    erbium

    167

    100

    Fm fermium

    69 Tm thulium

    169

    101

    Md

    mendelevium

    70 Yb

    ytterbium

    173

    102

    No

    nobelium

    71 Lu lutetium

    175

    103 Lr

    lawrencium