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8/4/2019 Chemistry Edujoshua

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JABATANPELAJARAN OHORJABAT.' II DNT f I D Y JOHORJABATANPELAJARANJOHORJABATANJAL A;^,,4RANJ2H)RJABAT l\ v.roHoR";; s62, 1trX,'r\ir3fr'A'rXi/fl\ Y,flfr"J'ERGUBAANrp' 2011{,JABATAN ELA,IARAN.IO^HO.RABAT /;W*\ vJoHoR JABATAN ELAJARANoHoRJABATANJABATAN ELAJARAN.J)^Ho^RIBjT / W \ vJoHoR JABATANELAJARANoHoR JABATANJABATAN ELAJARANOHOR ABAT L .T''_) vJoHoR JABATAN ELAJARANoHoR JABATANJABATANPELAJARANJ BATANPELAJARANJOHORJABATANJABATANPELAJARANJ CHEMISTRY (KIMIA) BATANPELAJARANJOH1RJABATANJABATANPELAJARANJ BATANPELAJARAN 7H1RJABATANJABATANPELAJARAN OHO? f tD t.ri^t Dr"r r/tD ^t fl\Lrr\RJABATAN\ELAJAMN JOHORJABATANJABATANPELAJARAN OHOI PAPER ,| (KERTAS 1) R JABATANPELAJAMN JoHoR JABATANJABATANPELAJARAN OHOL r-/7ntttlr\ r.LtJAr.t'.l'Atv.trtttt)RJABATANPELAJAMN JOHORJABATANt1:t1fr{,i\:}fiYr| M LrrPLE-c orc (ANKApr rHAN P^\t4r!y.yoH R ABArA' PELAJARANJOHORJABATANJABATANPELAJARAN OHORJABATANPELAJARAN OHORJABATANPELAJAMN JOHORJABATANtj:#ni onehourand orty-fiveminutesSatuamempat utuh imaminit) IoHoR ABATANJOHORJABATANJABATANPELAJARAN OHORJABATANPELAJARAN OHORJABATANPEUIJAMN JOHORJABATAN

JABATAN PELAJARAN JOHOR

SIJIL TINGGI PERSEKOLAHAN MALAYSIA

Instructions to candidates:DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO.Thereqre fifty questions n thispaper. lor eaghquestion,our suggestedanswersare given.Chooseonecorrect answerand indicate ii on themuhipie-choice"answeisheetprovided.Readall instructions on themultiple-choiceanswersheetvery cmefully.Answer all questions.Marks will not be deductedfor wrong anEwers.

Thisquestion aperconsists f 37printedpages.

STPM962lr*Thisquestion apers GONtr'IDENTIALuntil theexaminationsover. CONIIDENTIAL*http://edu.joshuatly.com


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CONFIDENTIAL*SectionAFoursuggesfednswersabeled , B, C andD aregiven or eachquestion. hooseoneconect answer.

1. Forwhichof the ollowingwould he atticeenergybeexpectedo have hegreatestnumericalalue thegreatestmagnitude,isregardingign)?A NaClBKIc Pbso4D MgO

2 Whichof the following s the correct trendof the electrical onductivity f the elementsNa,Mg,Si and P?A MgtNa>Si>P.B Na>Mg>Si>P.C MgtNa>P>Si.D P>Si>Na>Mg.

3

Which f he ollowingeactionst a constantemperatureanbeexplainedy hegraphabove?A X (g) + 2Y(g)e+ 2z(g)B X (g) + Y(g) r- 2Z(s)C X (g) + 2Y0)F=+ 22$D x (g) F- 2z(g)

E{g=utat,Eo-

?6product

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CONFIDENTIAL*Bahagian

Empat adanganawapanyangberlabelA, B, C dan D dibeikanbagi setiapsoalan.Pilihsatu awapanyangbetul.1. Antara angberikutmanakah ijangkamempunyaiilai enaga ekisi ang erbesarnilaiangkanyamagnituderbesar,anpamengambilira andanya)?

A NaClBKIc Pbso4D MgO

2 Antara angberikut pakahurutan angbetul entang ekonduksianlektrik agiunsur-unsura,Mg, i danP?A MgtNa>Si>P.B Na>Mg>Si>P.G MgtNa>P>Si.D P>Si>Na>Mg.

3

Yangmanakahntaraindakbalasberikut oleh iterangkanlehgraf di ataspadasuhumalar?

A X(g) + 2Y(g)B X(g)+Y(g)- z(g)c X (g) + 2Y(l).---: 2z(t')D X (g) t===+ 2Z(g)

E(Ec.(oE(g.Y(l'F

Tohasil



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CONFIDENTIAL*4 Arrangehe ollowing ompoundsn ascendingrderof theirboiling oints.

4

1 (CH3)3CH2 CH3CH2CH2OH3 CH3CH2CH2SH4 CH3CH2CHzCH'

A 14 32c 413 2

B 3241D 142 3

5. The half-life f a firstorder eactions 5.00hours.Therateconstant,n unitsecond-1,for his eactions

A 3.85x105B 2.00 103C 1.25 10-3D 9.63 10{

6 Thestandard lectrode otentialsregivenbelow.Zn2*(aq) ls F:: Zn(s); f = - 0.76VAg.(aq)+e i^ Ag(s); f =+O.8OV

What sthe e.m.fof the cell hatconsists f the halfcellsof zincandsilver?A [0.80+ (-0.76)]B [0.80 (-0.76)lc [(2x 0.80) (-0.76)]D [(2x 0.80) (-0.76)lV



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CONFIDENTIAL*4 Susun ebatian-sebatianerikut alamertibmenaikmengikutakatdidihnya.

1 (CH3)3CH2 CH3CH2CH2OH3 CH3CH2CH2SH4 CH3CH2CH2CH3

A 14 32c 413 2

B 3241D 142 3

5. Setengah ayatbagisuatu indakbalasertibpertamaalah5.00am.pemalarkadar,dalam nitsaafl,untukindak alas ni alahA. 3.85 10-5B.2.00 103C.1.25 103D.9.63 10{

6 Keupayaanlektrod iawaizinkanargentumdalah eperti erikut.Zn2.1ak\ 2e i=: Zn(p); E - - 0.76VAg*(ak)+e + Ag(p) ; F =+O.BOV

Apakah ilaid.g.e ang erhasil aripadaetengahelzinkdanargentum?A [0.80+ (-0.76)]B [0.80 (-0.76)]c [(2x 0.80)+ (-0.76)]D [(2x 0.80) (-0.76)lv



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CONFIDENTIAL*7 fne { forammonia as splofted gainst at constantemperature. hichof he ollowingpgraphss most ikelyo beconect?d= density fammonia; = pressure]

Ailp

8 The ollowingeries f iness formedn hevisibleight egion f the emissionpectrumfthehydrogentom:

Which f he ollowingtatementssnot true?A LineP has he ongest avelength.B LineP has he highest olourntensity.C LineP is violetwhileineQ is red n colour.D Theseries scalledhe Balmer eries.

6

D



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CONFIDENTIAL*

9 When8 A of electricitys pass hroughmolten luminiumxideusing nertelectrodesor100minutes, hat s the closest olume f gas eleased t s.t.p?[1mofe fgasat s.t,poccupies 2.4dm3; aradayonstant 9.65x 104C mofl]

A 2.8dm3 B 5.6dm3 C 8.4 dm3 D 11.2dm3

10 Theboiling oint compositionraphor womiscibleiquids andQ is shown elow:Temperature

100YoP 100%QWhat s hecompositionf the distillatesf a mixture f composition is ractional istilled?

8

A PandQC QandZ

B P andZD Zonly

11. X andY are wo miscibleiquidswhichobeyRaoult'sawAt 2s'c, the vapourpressure f X is 3.20kPa. What sthepartial ressure f X ina mixture f45 g X and253g Y? [Relativemolecular ass:X = 18,Y =461

A 2.80 Pa B 2.00 Pa C 1.75 Pa D 1.00 Pa

12 Which of the followingmixturewould experiencehe smallestchange n pH whenone dropof dilutehydrochloric cid s added o it?

A 100cm3NH30.1moldm-3 100cm3HCl0.1moldm-3.B 100cm3NH30.1moldm-3 100cm3HCt0.2moldm-3.C 100cm3NaOH0.2moldm-3 100cm3CH3COOH.1 moldm-3.D 100cm3NaOH0.1 mol dm'3+ 100cm3CH3COOH .2mol dm-3.



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8 A aruselektrik ialirkan elaluieburan luminiumkida enganmenggunakanengai elama 00minit,apakah sipadu asyang erbebasadas.t.p?

1 molgaspada .t.pmenempati22.4m3, emalar araday 9.65 104C mol-1]A 2.8 dm3 B 5.6 dm3 C 8.4 dm3 D 11.2 m3

0 Graf akat idih komposisiagi uacecair danQ yang erlarutcampurdalahepertidi bawah.

100o/o X Z 100o/oQ

omposisiasil-hasilulinganikasatucampuran engan omposisi disuling

9

QdanZB P danZD Zsahaja

. X danY adalah uacecairerlarutcampurangTematuhi ukumRaoult. ekananpX ialah3.20kPa. Apakahekanan epara dalam uatu ampuran5g X dan253

Y? [Jisimmolekulelatif: = 18,Y = 461A.2.80kPa B.2.00 Pa C. 1.75 Pa D.1.00 Pa

2 Manasatucampuran erikut kanmengalami erubahan H yangpating ecilsetitisasid hidroklorik airditambahkan e dalamnya

A 100cm3NH3 .1 moldm-3 100cmt HCl0.1moldm'3.B 100cm3NH3 .1moldm'3 100cm3HCl0.2moldm-3.C 100cm3NaOH0.2 moldm-3 100cm3CH3COOH .1 moldm-3.D 100cm3NaOH0.1moldm-3 100cm3CH3COOH.2moldm-3.



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CONFIDENTIAL*13. lf theradius fa metalatom s 125pm,determinehevolume f oneunitcell hatform ace-centred ubic.1pm= 10'12m]

10

A 5.52x 10-2acm3C 1.95 10-2acm3 B 4.42x 1O-23m3D 1.56 1023cm3

14 Theenthalpyhange f solution f sodium ydroxides- 44.4 J mol-1. hena sample fsodium ydroxideissolvesn250cm3 f water, he emperaturef waterchanges y 14 K.what sthemassof sodium ydroxide sed n heexperiment?tR.A.M:Na=2!O = 16;H = 1;assumingdensityofolution l gcm-3;pecificheatcapacityof sotution4.12Jg'tKt

A 0.85B 2.75C 10.80D 12.99

15 Thegraphbelow howshevariation fpHwhen10cm3 f 0.1 moldm'3 queous lkali stitrated gainst .1moldm'3 thanoic cid.

Which f he ollowingtatementss not conect?ThealkaliusedcouldbeBa(OH)2.Phenolphthaleins a suitablendicatoror hereaction.A buffer olutions ormed t pointX.Thesalt ormeds alkaline.

ABcD

20Volumeof CHgCOOHcm3



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CONFIDENTIAL*13.Jikaejariatomsuatu ogamalah125pm, entukansipadu atusel unityangmembentukiubberpusat uka.1pm= 10'12m]

t t

A. 5.52x 10-2acm3C. 1.95 10-2acm3

B. 4.42x 1023cm3D. 1.56 10'23cm3

'14 Perubahanntalpi agi arutan odium idroksidaalah- 44.4kJmol-l. pabila atusampetnatrium idroksidailarutkan i dalam 50cm3 ir,suhu arutanersebut erubah ebanyak4K.Apakahisimnatrium idroksidaangdigunakani dalam ksperimenersebut?IJ.A.R:Na=23;O=16; =1;Anggapkanketumpatanlarutan=1.0gcm'3;uatanhabatentularutan412JgtKtl

A 0.85B 2.75C 10.80D 12.99

15 Grafdi bawahmenunjukkanerubahan Hapabila 0cm30.1 moldm-3 uatu arutanakueus eralkali ititratkanengan .1moldm'3 sidetanoik.

Penyataanangmanakahang idak benar?A Alkaliyang igunakan ungkin a(OH)2.B Fenolftaleindalah enunjukang esuai agitindakalasni .C Suatuarutan enimbalerbentukada itikX.D Garam ang erbentuk ersifat lkali.

20lsipaduCH3COOH crna



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CONFIDENTIAL'T L2

16 Propanoneeacts ith odinen hepresencef an acid.cH3cocHs*lz t* , cH3cocH2l Hl

Itsmechanismnvolvedhe ollowingteps:CH3COCH,4 a,f.? = CHz slow5t"T '? = CHz+ lz ----) CH3?l CH2l fasft lOH OHCH3?l CH2l -=-> CH3COCHzl + Hl fasfIOH

Which onclusionannotbe drawn rom heabove nformation?A lodine snot nvolvedn heratedeterminingtep.B The eactionsunimolecular.C Theoverall rderof reactions3.D The ateof reactions notaffected y a changen he odine oncentration.



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CONFIDENTIAL*

16 Propanonertindakalas enganodin engan ehadiranuatu sid.CH3COCHa lz H* > CH3COCH2I Hl

Mekanismenyaelibatkanangkah-langkahangberikut:CH3COCH. g aX.9 = CHz perlahan

IOH

an.9 = CHz+ lz -) CH39l CH2l cePatI rOH OHCH39l- CH2l --------> CH3COCHzl + Hl cepatIOH

Manakah taraberikut dalahidak benarmengenaiesimpulanerdasarkan aklumatdi atas?

A lodin idak erlibat alam angkah enentu adar.B Tindak alas tuadalah nimolekul.C Tertib eseluruhanagitindak alastu alah .D Kadarindakbalas idakdipengaruhilehperubahanepekatanodin.

13



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CONFIDENTIAI*

17 Thediagramepresentshemelting oints f fourconsecutivelementsnthe hirdperiod f thePeriodic able.YgoCLo)cE=

Thesketches elow epresent notherwopropertiesf theelements.

Whatare heproperties andN ?

t4

ABcD

PropertyMThird onisationnergyNumber fvalence lectronslonic adiusElectricalonductivity

PropertyNElectronegativityBoiling ointEffective uclear hargeAtomic adius

Proton umber

Proton umber Proton umber



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CONFIDENTIAL'} 1517 Rajah i bawahmewakilitakateburbagiempat nsure angberturutanalam alaketiga idalam adual erkala.

Lakaran-lakarani bawahmewakiliduaagisifatunsur-unsurni.

Apakah ifat-sifat dan N ?

YL5-ooo.Y(UF

zEU'

ABcD

Sifat MTenaga engionanetigaBilanganlektronalensJejarionKekonduksianlektrik

Sifat NKeelektronegatifanTakat idihCasnuklear erkesanJejariatom

Nombor roton

Nombor roton Nombor roton



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CONFIDENTIAL* T518 Whenheatedo a temperatureoC,NOz g) dissociatesntoN2(g) nd Oz(g).

2NOz(g)+ Nz(9)+ 2Or(g)A mixture f 0.76mol NOz(g) nd0.26molN2(g) as heatedo a temperatureoC na 1.0dm3flask. f 0.52molNOz(g)spresent t equilibrium, hat s the equilibriumonstant, for heabove eaction?

A 0.04moldm-3 C 0.18moldm-3B 0.08moldm'3 D 0.27moldm-3

19. The ollowing iagram hows hestructuralformulafa compound.CHS H CHE CHg\./ \ . /C=C C=C/\/ \H' -cHr- -cH2cH3What sthe otalnumber fgeometricalsomerscis-trans)nthismolecule?

A2 83 C4 D820.Whichstatementoncerninghe ransition etalss correct?

A Theyare he onlymetalswhichhavemore hanonevalencyoxidationtate).B Theyare heonlymetalswhichgivecolouredons n an aqueous olution.C Theyare heonlymetalswhich he anhydroushlorides avecovalent onds.D Theyare heonlymetalswitha complete s orbitalntheiratoms.

21 Whichproperty f a group14elementn he Periodic abledecreases hen he relativeatomicmass ncreases?

A Basicproperty f the oxides.B lonicproperty f itscompounds.C First onisationnergy.D Easeof hydrolysis f its etrahalides.



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CONFIDENTIAL'}18 Apabila ipanaskanepada uhuToc,Noz(g) erceraiepadaNz(g) anoz(g)

2NOz(g) i:* Nz(g) + 2Oz@)Suatu ampuran .76molNOz(g) an0.26molN2(g) ipanaskanepada uatu uhuT'C dalam atukelalang .0dm3. ika0.52molNOzhadirpadakeseimbangan,pakahpemalar eseimbangan,"untuk indak alas iatas?A 0.04moldm-3 C 0.18moldm-3B 0.08moldm-3 D 0.27moldm'3

19.Gambar ajahberikutmenunjukkantrukturormuta agisuatusebatian.CH. H CH. CH.t"="' \=c/H/ \"rr l -arr"H.Apakahumlahbilangansomergeometricis-trans)alammolekulni?A2 83 c4 D8

20.Penyataanangmanakah enarmengenaiogamJogameralihan?A Hanyaogamperalihan ahaja angmempunyaiebihdaripada atuvalensi(keadaan engoksidaan).B Hanyaogamperalihanahaja angmemberion-ion erwarna idalamsuatularutan kueus.c Hanyaogamperalihan ahaja angmanaklorida ontangnyamempunyaiikatan-ikatanovalen.D Hanyaogamperalihanahajamempunyairbital4s angpenuhdalamatom-atomnya.

21 Manakahifatunsur umpulan 4dalam adualBerkala erkuranganpabilaisimatom elatifnya ertambah?A Sifatbesoksida-oksidanya.B Sifat onsebatian-sebatiannya.C Tenagapengionan ertama.D Tahaphidrolisisetrahalida-tetrahatidanya.

L7



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CONFIDENTIAL* 18

22 Which f he ollowings notdisproportionation?A Cl2 21t139H+ NaCl+ NaOCI+ HzOB Hg2Cl2+ HgCl2+ HgC 2SiO -+ SiO2+ SiD 2KC|O3+ 2KCl + 3Oz

23 Whichof the followings not a property f nitrogen as?A lt is inert.B lts meltingpoint s highbecauseof the triplebondbetweennitrogenatoms.C lt hasa highbonddissociationnergy.D lt is colourless ndodourless.

24 Which tatementannotbeexplainedy hepolarizingower faluminiumons?A Thehighboiling ointoraluminiumluoride.B Theamphotericature f aluminiumydroxide.C Thecovalent ature f aluminiumhloride.D Theacidic ropertyf aqueousluminiumalts.

25 Which actors elp o explainhe ncreasen hermal tability f thecarbonatesfGroup metalsrommagnesiumo barium?Charge ensity f cation Relative olarisabilityfcarbonate

andoxideonsA Increases COg'-ess han Oz'B Increases O'- ess hanCOaz-c Decreases COr'- ess han02-D Decreases O'- ess hanCOs'-



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Antara erikut angberikut dalah ukanpenyahkadran?A Cl2+ 211sgH NaCl+ NaOCI+ HzOB Hg2Cl2-+ HgCl2+ HgC 2SiO + SiO, + SiD 2KC|O3 + 2KCl + 3Oz

Manakahntara erikut ukansifat-sifatasnitrogen?A laadalahengai.B Takateburnyadalahinggi erana ujudnyakatan andaigadiantara

atomnitrogen.C Tenaga enguraiankatannyainggi.D la bersifatidakbenlrrarnaan idakberbau.

Penyataanmanakah ang idak dapatditerangkan elalui uasapengutubanonTakatdidihyang inggibagialuminiumluorida.Sifatamfoterik agialuminium idroksida.Sifatkovalen agialuminium lorida.Sifatasidbagi arutan kueus aramaluminium.

Faktor-faktorangmanakah olehmenerangkanertambahanalam estabilanarbonat-karbonatogamKumpulan danpada agnesiumepada arium?

19

ABcD

Ketumpatanaskation Kekutubanelatifon{onka?bonatBertambah COr'- urangeripaGBertambah kurangdaripadaCO3Berkurang COa'- urangdaripad-Berkurang kurangdaripadaCO3



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CONFIDENTIAL'T 20

26 Thecomplexon M(NH3)2C12]*oesnot exhibit is-transsomerism. he shapeofthe complex s most ikelyA square lanar

C linearB tetrahedralD trigonal ipyramidal

27 Whichof the ollowings not trueabout aolinite ndmontmorillonite?A Bothareclay.B Bothare ayered tructures.C Bothcanabsorb ations.D Bothhave ormulaCagAlzOe.

28 2.30g of methylbenzeneeactswithchlorineo givea compound . HydrolysisfXin hepresencefaqueousilver itrate ields .18g of silver hloride swhiteprecipitateccordingo the ollowingeactioncheme.

\/ AgNOs/HNOg.4. AgClBoil ingCompound couldbe[Refativetomicmass:C= 12;H = 1;Ag= 108,Cl = 35.5iN= 14]

cH2cl cHct2

CHs Clz+

D o(:"'http://edu.joshuatly.com


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CONFIDENTIAL* 2L

26 lonkompleksM(NH3)rClr].idakmenunjukkaneisomeranis-trans. entuk angmungkin agi onkompleksni alah

A segiempatsesatahC linear

B tetrahedralD bipiramidrigon

27 Mana angberikut dalahidakbenarmengenaiaolinit anmontmorillonit?A Kedua-duanyadalahanahiat.B Kedua-duanyaempunyaitruktur erlapis.C Kedua-duanyaolehmenyerap ation.D Kedua-duanyaempunyaiformulaCagAlzOo.

28 2.30g metilbenzenaertindakalas engan lorin ntukmenghasilkanuatusebatian. Hidrolisisdengan ehadiranarutan kueus rgentum itratmenghasilkan7.18g argentumlorida ebagaimendakanutih eperti angditunjukkanalam kematindak alas erikut.

AgNOg/HNOrDidih

Sebatian mungkinalah[Jisim tom elatif: = 12;H= 1;Ag= 108,Cl= 35.5;N = 14]

cHzcl

CHa Clz x AgCl

A

D



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CONFIDENTIAL* 2229 What ypeof reaction oescyclohexenendergo?

A Free adical ubstitution B Electrophilicdditionc Nucleophilicddition D Nucreophilicubstitution

30 Experimentsrecarried uton hree ompoundsP:CHoCHzCH2CIQ:CHgCHzCOCI,ndR:CeHsCl

To 0.010molsamples f each fP,Q andR, 10cm3 fwatersadded nd hesamples reshaken ndkeptat a fixed emperatureor24hours.Anexcess f aqueous ilvernitrates henaddedoeachsample nd he silverchloride roduceds filtered ff,washed, riedandweighed. he hree amples f silverchloride eighed .000 ,0.014 and1.430 .Which equencef compounds atcheshese esults?

0.000 0.014 1.430ABcD

PoRR

oRPo

RPoP



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23Apakahenis indak alas ang elibat leh ikloheksena?A Penukargantianadikal ebas B penambahanelektrofilikc Penambahanukleofilik D penukargantiannukleofilik

ijalankaneatas igasebatianP:CHgCHzCHzCIQ:CHgCH2COCI,anR:CeHsCl

10cm3 lrditambahkanepada .010molbagi etiap ampel , e danR danigoncanganditinggalkanada uatu uhuetap elama 4 am.Suatu kueus rgentumitrat erlebihanemudiannyaitambahkanepadaetiapanargentumloridaerbentukituraskan,ibasuh,ikeringkananditimbang.ampel rgentumlorida erjisim.000 ,0.014 dan1.430 .ntaraurutan ebatian-sebatianerpadananengan eputusan-keputusan

0.000 0.014 1.430ABcD

PoRR

oRPo

RPoP



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CONFIDENTIAL'}31 Aspartamesan artificialweetenersedbydiabetic atients. hestructurefaspartamesgivenbelow.

24

HOl l lHzN-9 c-ICHtIcooH

A MagnesiumC Alcoholic ilvernitrate

oilCO- CHs

B PotassiumyanideD Ammonia

HIi -?-H ?H',

Which f he ollowings rueof aspartame?A lt formshreedifferent mino cidswhenhydrolysedompletely.B lt reactswithaqueous odium ydroxideo givemethanol s oneof the

products.C lt isopticallynactive.D lt is a polyamide.

32 Whichof he ollowingeagentsan eactwithall he hreebromo ompoundsbelow?

CeHsBr,2HsBrndCeHsCH2Bt?

33 Compound , CaHTNOs neutral nd eactswithnitrous cid o produce ompound,CsHeOzndnitrogen.Whatcould ompounds andB be?

CompoundAA CH3CONHCH3B CH3CH2CONH2c cH3coNHcH3D CH3CH2CONH2

CompoundcH3coocH3cH3cH2cooHCHgCHzCOOHcH3coocH3



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CONFIDENTIAI* 2531 'Aspaftame'alah atupemanisuatan angdigunakanntuk esakit iabetis.Struktur agi aspartame'iberiseperti angberikut.

HOHOl l l l l lH,N-C b- N -g-co-cHsl - l lcHz H 9Htl rcooH ra\./

Manakah ntara erikut dalah enarbagi aspartame'?A la membentukigaasidamino angberlainanpabila ihidrolisisepenuhnya.B la bertindakalas enganarutan kueus atrium idroksidantuk

menghasilkanetanolebagaialah atudaripadaasil-hasilnya.C la tidakaktifsecara ptik.D la adalah atupoliamida.

32 Manakah ntara eagen erikut ertindakalasdengan etiga-tigaebatian romodi bawah?CeHsBrCzHsBrndCoHsCH2Br

A Magnesium B Kalium ianidaC Argentum itratberalkohol D Ammonia

33 Sebatian , CaHTNOersifat eutral anbertindakalasdengan sidnitrusuntukmenghasilkanebatian ,CaHoOzannitrogen. pakah ebatian-sebatiandanByangmungkin?

SebatianAA CH3CONHCH3B CH3CH2CONH2c cH3coNHcH3D CH3CH2CONH2

SebatiancH3coocH3cH3cH2cooHcH3cH2cooHcH3coocH3



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CONFIDENTIAL{' 2634 4-methylpentan-2-one,IBK s usedas a solventor a few ypesof glue.The molecular

structure f MIBK s(cH3)2cHcH2cocH3

Whichof the ollowings a particularest hat s performedn MIBK?A lt will orman orangeprecipitate henheatedwith Fehling's olution.B lt is oxidised y potassium ichromate(Vl)olution nd he colourof potassium

dichromate(Vl)olution hangeso green.C lt formsa yellowprecipitate henheatedwithan alkalineodinesolutionD lt produces scentwhenheatedwithbenzoic cid

35 Whichof the ollowingmechanismss most ikelyexperienced y he carbonatomslabefed , y andz?YzcH.


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CONFIDENTIAL'* 2734 4-metilpentan-2-on,IBKdigunakanebagai elarut ntukbeberapaenisgam.Struktur olekul IBKalah

(cH3)2cHcH2cocH3Manakahi antara erikut dalah jian has ang itunjukkanalamMIBK?A laakanmembentukuatumendakaningga pabila ipanaskanenganarutanFehling.B la dioksidakanleh arutan alium ikromatVl)danwarnaarutan aliumdikromatVl) bertukarepada ijau.C la membentuk endakanuning pabila ipanaskanengan uatuarutanodinberalkali.D la menghasilkanuatu auwangi pabila ipanaskanengan sidbenzoik.

35 Apakahmekanisme-mekanismeerikut dalah alingmungkin ialami lehatom-atomkarbon ang elahdilabelkan y danz?cH,{+- cHz- [-Z^,- clx\-Ji l o

36 Reagenmanakah ntara erikut oleh igunakanntukmembezakanntaraenotdan enilmetanol?A Akueus romin B EtanoilkloridaC Asidhidroklorikair D Larutan ehling

x v zA Penukargantianadikalbebas Penambahanlektrofiik PenambahanukleofilikB Penukargantianlektrofilik Penambahanukleofilik Penukargantianlektrofiikc Penukargantianadikal

bebasPenambahanukleofilik Penukargantianukleofiik

D Penukargantianlektrofik Penambahanukleofilik Penukargantianadikalbebas



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CONFIDENTIALd.7 - bagigasammoniaelah iplotkanerlawananpada uhu angmatar.Graf

yangmana atukah dalah enar?d= ketumpatanagiammonia; = tekanan]

I Beberapaarisdi bawaherbentukpemancarantomhidrogen.

P

dalam awasanahaya ampak agispektrum

Penyataanangmanakahang idakbenar?A GarisP mempunyaiilaipanjangelombangangpalinginggi.B GarisP mempunyaieamatanahayaangpalinginggi.c GarisP berwarnangumanakalaarise berwarnamerah.D Siri nidipanggiliriBalmer.

B

D



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CONFIDENTIAL{' 2837 Whichof the following olymerss produced y condensationolymerisation?

38 The chlorinationf methane ccurs hrough seriesof steps.Whichof thefollowings not true?

A The nitiationtep s endothermic.B Ghlorineree radicals re ormed nthe nitiation tep.C One of the productss ethane.D The reactionwillonlystopwhenall the hydrogen toms n the methanemolecule as been eplaced y chlorine toms.

39 Whichof thefollowings expectedo givea whiteprecipitate ithbrominewater?A CzHsNHz B G*t,c cr.

./--4.cHs{fNHz

40 Whichsequence orrectly epresentshe ollowing ompoundsnthe orderofincreasingKavalues?

A Poly(ethene)C Syntheticubber

clI?-o'H

B PolyamideD Perspex

,t:)'.( ) .H1",

B 213D 2 31

A 12 3c 3 21



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29ntara olimer-polimererikut ihasilkanelalui empolimeran

A Polietena B PoliamidaG Getah intetik D Perspeks

etana erlakunelaluiatu iri angkah. anakahntara erikutbenar?A Langkahemulaandalah ndotermik.B Radikal ebas lorinerbentukalamangkahemulaan.C Salah atuhasilalah tana.D Tindak alas anya kanberhentipabilaemua tomhidrogenalammolekul etanaelah igantikanengan tom-atomlorin.

angberikut,mana atukah ijangka emberikanatumendakanutihirbromin?A C2H5NH2 B G**,C CH'-O D [email protected],Turutanangmanakah ewakiliertib enambahanilaipG sebatian-sebatian

A 12 3c 3 21

B 213D 2 31



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CONFIDENTIAL* 30Section B

Foureachquestionn thissection, neormoreof the hreenumbered tatements to3maybe conect.The responses toDshould e selecteds follows:

A B c D1 only s correct 1 and2 onlyare

correct2 and3 onlyare

correct1,2and are

correct

41 Anelement producedhe ollowing ass pectrumPercentageabundance

14 15 mass/chargeFromheabovemass pectrum,t canbeconcludedhat1 thenucleon umber fY is 14.5.2 therelative tomicmassof Y is 14.2U.3 theelement has wo sotopes ith elativesotopicmasses f 14and15.

42 A cunent f 20 A waspassedhrough queous opper(ll)ulphateor40.6minutesusing opper lectrodes.twas ound hat he massof theanode hangedby 16.85 .Which f he ollowing bservationss/arerue?[A of Cu= 63.5;Faraday onstant 96500C mofl]

1 Themassof heanodencreasedy 16.85 .2 Thecolourntensityf theelectrolyteemainednchanged.3 Thecopper nodes impure.



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CONFIDENTIAL* 31Bahagian

Bagitiaptiapsoalan alambahagianni, satuatau ebih enyataan aipada igapenyataan angbernombor hingga3 mungkin etul.Respons ,hinggaD hendaklahdipilih sepefti angberikut:

A B c D1 sahaja

yangbetul.1 dan2 sahaja


yangbetul.1,2dan

adalah etul.

41 Suatu nsur menghasilkanisim pektrumerikutPeratuskelimpahan

14 15 jisim/casDaripadaisimspektrumi atas,boleh isimpulkanahawa1 nombor ukleon ialah14.5.2 jisimatom elatifY ialah14.254.3 unsur mempunyaiua sotop enganisim sotopelatif 4dan15.

42 Arus20A dialirkan elalui kueus uprum(ll)ulfat elama 0.6minit enganmenggunakanlektrod-elektroduprum. idapatiahawaisimanodberubah ebanyak16.85 .Manakahntara enyataanerikutdalah enar?[A Cu= 63.5;Pemalar araday 96500C mol{]

1 Jisimanod ertambahebanyak6.85 .2 Keamatan arnaelektrolitidakberubah.3 Anod uprumidakulen.

14 15



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CONFIDENTIAL*A B c D

1 only scorrect 1 and2 onlyarecorrect

2 and3 onlyarecorrect

1,2 and3 arecorrect

43 In whichof the ollowingeactionssthe bondangle nthe product reaterhan nthe eactant?I H2O(l)2 Coz(9)3 CzH+9)

32

+++

H.(aq) HgO* aq)oH'(aq) -> HcOi (aq)H, (g)

U Thegraph elow hows ow hepercentagef reactant (g) hat emainednanequilibriumixturearieswith1ff at pressuresf 1atmand2atm. T s he emperatureKelvin)

1/T(K'l)

Whichof the ollowing an be deducedrom hisgraph?1 The equation or theabove eaction ouldbe X(g) T- y(g) + Z(g).2 The orward eactions endothermic.3 TheequilibriumonstantKo ncreases s the pressurencreases.

E=L:tcro(5cnxs



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CONFIDENTIAL'TA B c D

I sahajayangbetul.

1 dan2 sahajayangbetul.


1,2dan3adalah etul.

43 Manakah ntara indakbalasberikut, udut katan asil indak alas ebihbesardaripada ahan indak alas?

1 HzO(ce) + H.(ak) -t2 GOz(g) + OH-(ak)->3 CzHog) + Hz g)

44 Grafdi bawahmenunjukkanerubahan eratus ahan indakbalasX(g)yangtertinggalalam uatu ampuran eseimbanganengikut ff pada ekanan1 atm dan2atm. T alah uhudalamKelvin)

1/T(K'l)

Manakah ntaraberikut apatdideduksikanarigraf ni?1 Persamaanindakbalasdi atasmungkinX(g) F==J YG) + Z(g).2 Tindak alas ehadapan dalah ndotermik.3 Pemalar eseimbanganobertambahpabilaekanan ertambah.

33

HsO. ak)HCO' (ak)CzHs9)

g(Ut5o ct)oco-(56v. =xoSE.Y



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CONFIDENTIAL* 34A B c D

1 only s correct 1 and 2 onlyarecorrect

2 and3 onlyarecorrect

1,2and3 arecorrect

45 Thepartitionoefficientf X between therandwaters 8.0at roomconditions.Givenhat100cm3 f the aqueousolution hich ontains.00g of X isextractedyusing100cm3 fether.Hence,t canbeconcludedhat

I X is moresolublenether hanwater.2 themassofX extracteds 4.44g.3 theconcentrationf X remainingn waters5.60gdm-t.

46 Which f he ollowing bout atalystsconect?1 lt increaseshe rateconstant fa reaction.2 lt doesnotchange hemicallyt theendof he reaction.3 lt changeshe enthalpy f reaction.

47 Thee.m.fof a Daniell ellcanbe ncreasedyo, 1 decreasinghe concentrationf Zn2*.2 increasinghe concentrationf Cu2*.

3 increasinghevolume f heCu2*onic olution.48 Etheneeactswithhydrogenalide,HX,accordingo theequation:

CH2= gg, + HX -+ CH3CH2XIn hereaction

I zrelectronsreused oforma bondwith he hydrogentom romHX.2 the ntermediates CHs CHz*.3 thereactivityncreasesn he orderHF< HBr< HCI< Hl.



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A B c D1 sahaja

yangbetul.1 dan 2 sahaja


yangbetul.1,2 dan3

adalah etul.Pekali ekatan di antara terdanair alah .0pada eadaan ilik.Diberi ahawa

00cm3 arutan kueus angmengandungi.00g X diekstrakkanengan00cm3 ter.Maka, oleh isimpulkanahawa

1 X lebih arutdalam terdaripada ir.2 jisimX yangdiekstrakkanalah4.44g.3 kepekatan yang ertinggaldalamir alah .60gdm-3.

atudi antara angberikut dalah enarbagimangkin?{ la meningkatkanemalaradar agi uatuindak alas.2 la idakberubahecara imia adaakhir indak alas.3 la mengubahntalpi agisuatuindak alas.

aniell oleh itambahkanengan1 mengurangkanepekatann2*.2 meninggitkanepekatan u2*.3 menambahkansipaduarutanonCu2*.Etenabertindak alasdengan idrogen alida,HX,mengikut ersamaanerikut.

CHr=CH2+ HX + CH.CH2Xindak alas tu,1 elektron digunakan ntukmembentukatu katan engan idrogen ariHX.

2 perantaraannyaalahCHs CHr*.3 kereaktifanertambah engikutertibHF< HBr< HCI< Hl.

35



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CONFIDENTIAL* 36

49 Which tatementslare rueaboutglycine aminoethanoiccid)?1 lt reactswithhydrochloriccid.2 lt releasesarbon ioxide ithsodium ydrogenarbonateolution.3 lt dissolvesasilynorganicolvents.

50 Compound has he ollowing tructure:

Which f he ollowingtatement(s)s/are rueof compound ?1 lt formsan orange recipitateith2,4-dinitrophenylhydrazine.2 it has4 chiral carbon toms.3 it can eactwithethanoic cid oformanester.

A B c D1 only s correct 1 and2 onlyare

correct2 and3 onlyare

correct1,2and3 are

correct



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CONFIDENTIAL* 37A B c D

I sahajayangbetul.



1,2dan3adalah etul.

49 Penyataanangmanakah enarmengenai lisina(asidminoetanoik)?I la bertindakalasdengan sidhidroklorik.2 la membebaskanarbon ioksida enganarutan atrium idrogen arbonat.3 la larutdenganmudah alampelarut-pelarutrganik.

50 Sebatian mempunyaitruktur erikut:

Penyataanangmanakah enarmengenai ?1 la membentuk endakaninggadengan ,4-dinitrofenilhidrazina.2 la mempunyai4 tomkarbon iral.3 la bolehbertindak alas engan sidetanoik ntukmenghasilkanster.



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JABATANPELAJAMN JOHOR JABATANPELAJARAN OHORJABATANPELAJARAN OHORJABATANJAI 96212 4RANJOHORJABAJAL,^-,-.,- -..,-,4RAN JOHORJABAJABATANPELAJARANJOHORJABAJABATANPELAJARAN OHORJABAJABATANPELAJARAN OHORJABA

4N oHoa pERGUBAAN STpM 2011 tN4NJOHOI\ ...--.--.lN4N JOHORJABATANPELAJARAN OHORJABATAN4NJOHORJABATANPELAJARAN]OHOR ABATAN4NJOHORJABATANPELAJARAN OHORJABATANJABATAN PELAJARANJOITnp f tpltT/tt\r DFr / f tp n^r tl)unp IABATAN ?ELAJAMN JOHORJABATANJABATAN ELAJARANO] GHEMISTRY (KIMIA) IABATAN ELAJARANOHOR ABATANJABATAN PELAJARAN Jo]rvtt "n')/r.r/7)t ! LLnr^rvtv r\/!tvt\ JABATAN PELAJARAN JOHOR JABATAN'fi^ffi{,'fr:l^fry,Ij'"f,2ApER(KERrAIAf":rjTfrXi\:}frY^Xj3f,3|'1JABATANPELA.IARAN,IOHORABATANPELA.IARANIOHOR.IABATANPELA,IARAN OHORJABATAN

f /D/tl\f nnf-tAnAlAlU rFt r -;););)'^,--;- rwo hours and thirty minutes Dua am tiga puluhminit) UNIOHORJABATANrtr.vAtAty LL/ UNJOHORJABATANJABATANPELAJARAN OHORJABATANPELAJARAN OHORJABATANPELAJARAN OHORJABATANJABATANPELAJARAN OHOR JABATANPELAJARAN OHORJABATANPELAJARAN OHORJABATAN

JABATAN PELAJARAN JOHORSIJIL TINGGI PERSEKOLAHAN MALAYSIA

Instructions to candidates:Answer llthe questions n SectionA in the spaces rovided. All

working must 6eshown.For numerical answers,znil must bequotedwherever hey are appropriate.Answerany four questionsfromsection B. For this section,writeyour answerson the answer sheets.Begineach answer on afresh sheetofpaper and arrangeyour answers n numerical orfur. Tieyour answersheets o this booklet.Answersmaybewritten in either English or Malay.A Data BooHet isprovided

ForExaminer'sse(Untukkegunaanpemeriksa)I23456789l0

Total(Jumlah)

This question paper consistsof 23 printed pages.

STPM96212*Thisquestion apers CONFIDENTIA! until theexaminations over. CONFIDENTIAL*http://edu.joshuatly.com


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CONFIDENTIAL* 2SectionA [40 marksl

Answerall the questionsn this section.1. (a) A 20 dm3 losed essel ontaining.5moleH2g?s, moleN2gasand1.2moleCO2gashasa totalpressure f 500kPaat a temperaturef 298 K.

(i) Calculatehe valueof x. [3 marks]

(ii) 1.5moleof neongaswasaddednto he20 dm3 esset. alculatehepartial ressure f thehldrogengas. [1 mark]

(b) Hydrazine, zHr s usedas uel for rocket(i)Write he electronic onfigurationfnitrogen tom. [1 mark]

(ii)Draw he dot crossstructureor hydrazine olecule. [1 mark]

(c)The boiling ointof dimethyl ther(CHsOCHs)s lower han hatof propanone(cH3cocH3).(i) Givea reasonor the differencen theirboiling oints. [2 marks]



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CONFIDENTIAL- 3BahagianA[40markahl

Jawab semua soalan alambahagian ni.1. (a) Sebuah ekas ertutup 0 dm3 angmengandungi.5moleH2g?s, mole N2gasdan1.2moleCOzgasmempunyaijumlahekanan 00kPapadasuhu298K.

(i) Hitungkanilaix. [3markah]

(ii)1.5molgasneonditambahedalam ekas 0dm3 tul.Hitungkanekananseparabagigashydrogentu. t1 markahl

(b) Hydrazine, zHr digunakan ebagai ahanapiuntuk oket.(i)Tuliskonfigurasi agiatomnitrogen. [1 markah]

(ii) Lukisgambar ajah itiksilanguntukmolekul idrazina. [1 markah]

(c)Takatdidihdimetileter(CH3OCH3)dalahebih endah aripadaakatdidihpropanonCH3COCH3).

(i) Berikan atusebabuntukperbezaanalam akatdidihmereka. l2markah]



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CONFIDENTIAL*(ii) State he ypesof hybridisationresentn thecarbon tomsof the wo

compoundselow. [2 marks]DimethyletherPropanone :

2 (a) i)Give he definitionorstandard lectrodeotential. [2marks]

Thestandardeduction lectrodeotentialforeveral alf-celleactions t298K areshownn he ablebelow.

Half-celleactions. E0SzOot- + 2e -+ 2SO42- +2.01

lFe(CN)el" '+ e -[Fe(CN)5]a- +0.36Fe"* + g - Fgt* +0.7712 + 2e - 2l' +0.54Whenan aqueous olution f potassiumeroxodisulphateK2S2Oss added o an

aqueousolution f potassiumodide,Kl , a reddish rown olutionsobtained.(iD Writea balancedonicequationor he above eaction. [2marks]

(iii)Writea celldiagramor he above eaction. [1mark]



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CONFIDENTIAL*(ii) Nyatakanenispenghibridanangwujuddalam tom-atomarbon uasebatian

di bawah [2 markah]Dimet i le ter:. .Propanon.. . . . . . . .

2 (aXi) Berikanakrifan eupayaanlektrod iawai. [2 markah]

Keupayaanlektrod iawai eberapaindak alas etengah adasuhu298Kdiitunjukkanibawah.

Tindak alas etengah el. EoSzOs'' + 2e 2SOn'- +2.01

[Fe(CN)5]" + e -+[Fe(CN)5]* +0.36Fe"- + g +Fg" +0.77

lz + 2e -21- +0.54Apabila uatuarutan alium eroxidisulfat,zSzOe itambah epada uatularutankalium odide,Kl, suatuarutan erangerbentuk.

(ii) Tulis atupersamaanonyang eimbangagitindak alas iatas [2 markah]

(iii)Tulis ajah elbagitindakalas iatas. [1 markah]



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I

CONFIDENTIAL*(iv) Calculatehestandard elle.m.f. Eoen for the reactionn(b)(iii). [1mark]

(b) Thephase iagram f a substance is shown elow.Pressure(atm)

Temperaturefc)(i) Stateall hechanges f phases fsubstance at he ollowing oints s hetemperaturencreases.

P: . . . . .R: . . . . .T:. . . . . .

[2marks]

(ii)Baseon he curveoY, comparehedensity f solidw and iquidw. [1mark]

Q:

S:

(iii)Describehe changenmelting ointwhenpressures ncreased [1mark]



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CONFIDENTIAL- 7(iv) Kira eupayaaniawai ele.m.f., ocell bagitindakalasdi (bxiii)

Ilmarkah]

(b) GambarajahasasuatubahanW ditunjukkani bawah.Tekanan(atm)

Suhu oC)

(i) NyatakanemuaperubahanasabahanW pada itikberikutapabila uhumeningkat. [2markah]

(ii) Bbrdasarkanengkung Y,bandingkanetumpatanepejalW engan ecairW.Ilmarkah]

Q:

(iii) HuraikanerubahanakatdidihbahanW apabilaekanan itambah. [lmarkah]



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CONFIDENTIAL-

3 A student xaminedhewater roma mining oolwhich ontainsead(ll)ons.Thepresencef ead onscanbe shown y heprecipitationfyellowead ll) odide. hesolubilityf a saturatedolution f tead(ll)odide t 15"C s0.46gdm-t.(a) (i)Writeanexpressionor hesolubilityroduct, p, or ead ll) odide t 15oC.[1mark]

(ii) Calculatehe concentration f lead(ll) ions n moldm'3 [2marks]

(iii)Calculateheconcentrationf odideons nmoldm-3. [2marks]

(iv)Calculatehe solubilityroduct, .o,or ead ll) odide. Ilmarkl

(b) Strips f copper redroppedntoa conicallask ontainingot507o itric cidsolution.A colourlessndvery eactive as sgivenoff.Thegas hen eactswithoxygennthe airto form a browngas.(i) Name hecolourlessas [1 markl

(ii) Write heequationorthe reaction etween opperandnitricacid. [1mark]

(iii) dentifyhe brown asandwritean equationor ts ormation [2marks]



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CONFIDENTIAT3 Seorangelajarmenguji irdaripadaebuahombongangmengandungionplumbum(ll).Kehadiranonplumbum oleh itunjukkanaripada endakanangberwarnauningplumbumll ) odida. asil arab eterlarutanntukarutanepuplumbumll ) odida ada15oCadalah .46g dm-t.

(a) (i)Tuliskan asildarabeterlarutanKo,bagiplumbumtl ) odide ada150C.[lmarkah]

(ii)Kirakan epekatanonplumbumll )dalammoldm-3. [2markah]

(iii) Kirakan epekatanon odida alammoldm-3. [2markah]

(iv) Kirakan asildarab eterlarut?D,p,untukor plumbumll) odide. [lmarkah]

(b)Suatualurkuprum i masukkanalam atu elalangonyangmengandungi0%larutan sidnitrik.Suatugas anpawarnadan eaktif ibebaskan. as tu bertindak alasdengan xygen an membentukatugasperang.

(i)Namakan asyang anpawarna tu. [1 markah]

(ii)Tulis atupersamaanntukindak alas ntara uprumanasid itrik. lmarkah]

g

(iii) Kenalpastias perangersebut an ulispersamaanembentukannya.[2arkah]



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CONFIDENTIAL*4. Pethidinesa powerful ainkillingrug:

CHzc

co2cH2cH3

10

CHsIIN:

, / \CHZ CHZ

CH.II*Nl- cr H

. / \CHZ CHZ

CH,

c02cH2cH3

Pethidine E(a) Thepethidinemolecule ontainswo unctional roups, newhich eactswithdilute

hydrochloriccid o givecompound .(i) What ype of reactions this andwhat ypeof functional roupdoes t show hepethidinemoleculeo have? [2marks]

(ii) Nameheotherunctionalroupn hemolecule.tatehe ypeof reactionundergone,ndgive hestructuralormula f eachof heproducts,henpethidineeacts nder efluxwithaqueousodium ydroxide.

[3marks]Functionalroup ......Type freaction......Structuralformula

o



48/76

CONFIDENTIAL*

4. Pethidinedalah bat tahansakityangamatberkesanCHsII*lLcrH

. / \CHZ CHZ

co2cH2cH3

Pethidine(a) Molekul ethidine engandungiuakumpulanerfungsi,alah atudaripadanya

bertindak alasdenganasid hidroklorik air untukmenghasilkanebatianE.(i) Apakahenis indakbalasyang erlibat an apakaheniskumpulan erfungsi ang

terlibat? [2markah]

(ii) Namakan umpulan erfungsiyangatu agidalammolekultersebut.yatakanjenis indakbalasyangakanditunjukkan,an berikanormula truktur agisetiaphasiltindak alasapabila ethidineertindakalas engan atrium idroksidaakueusdi bawah efluks. [3markah]KumpulanerfungsiJenis indak alas

11

CHsIIN:./ \CHZ CHZCHz

cCHz o

Formulatruktur:http://edu.joshuatly.com


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CONFIDENTIAL* 12

(b) 2-bromobutaneeactswithaqueousydroxideons ogivebutan-2-ol.(D Stateheconditionor his eaction. [1 markl

fii) Statewhat ypeof mechanisms nvolvedn his eaction. [1 mark]

(iiD Statehereagents eededoconvert -bromobutaneoCH3CH2CH(CH3)CH(OH)CH3n wosteps. 12marksl

Step .. . . . . . .Step : . . . . . .

(iv) Nameonereagenthatcanbe used odifferentiateetween -bromobutaneandCHgCH2CH(CH3)CH(OH)CH3ithout eating. [1 mark]



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CONFIDENTIAL*

(b)2-bromobutanaertindak alasdenganonhidroksidakueusmenghasilkanutan-2-ol.(i) Nyatakan eadaan ntuk indakbalas ni. [1 markah]

13

Nyatakanenismekanismaang erlibat alamindakbalas ni. [lmarkah]

(iii) Nyatakaneagenangdiperlukanntukmenukarkan-bromobutanaepadaCH3CH2CH(CH3)CH(OH)CH3alam ua angkah. [2 markah]

Langkah :.. . . . .Langkah: .. . . . .

(iv) Namakan atureagen angbolehmembezakanntara2-bromobutanaanCHgCHzCH(CH3)CH(OH)CH3anpapemanasan. [1 markah]



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CONFIDENTIAL*

SectionB [60marks]Answertour questionsn fhis section.

5. (a) Themajorbuffer ystemhat s used o controlthe Hof blood onsists f carbonicacid,HzCOgndsodium ydrogenarbonate, aHCOe. xplain ow he systemworks ncontrollinghepH of he blood. [4 marks]

(b) 20.0cm3of 0.20moldm-3 queousNHgwas itratedwith0.16moldm-3 queousHCl.Sketch graphof pH against olume f HCI(aq) ddedduring he itration rocess.Markandexplainheposition f the equivalenceoint. [4 marks]

(c) Theactivationnergy,E",of a reaction anbe calculatedrom heArrheniusequation: k _ 1"-E,lRTwherek=rateconstant, f t=gdsconstant,T=temperature,andA=frequencyfactor .Rateconstantsor thedecompositionf acetonedicarboxyliccidarek = 4.75x 10{ s'1at293K andk = 1 63x 103-s-1 t 303K.

14

(D(ii)(iiD

CO(CH2COOH)zaq) # CO(CHs)z(aq)2 COz(g)Calculatehe activationnergy,E" , of this eaction.Write he rate equationor thereaction.

[4 marks][1 mark]

What s the ime aken or he concentrationf CO(CH2COOH)zaq)to changerom2.00moldm'3 o 1.00moldm-3 t 303 K. [2 marks]

6. (a) The ollowing ataare oundof chlorine.Enthalpyhange fatomisation, AHr = +121kJmol-1Electron ffinity, AH2 = - 364 kJ mo'1Enthalpy hange f hydration, AH3= - 381 kJ mol'1

Bydrawing n energy ycle, alculatehe enthalpy hangeor the reaction, H4.% Clzt.g) water+ - Cl- (aq) AH+.

Deducehe strength f chlorine s an oxidising gentbasedon heAHr valueobtained.[6 marks]



52/76

CONFIDENTIAL*

BahagianB[60markahlJawabempat soalan alambahagian ni.

5. (a) Sistempenimbal tama angdigunakan ntukmengawal Hdarah erdiridaripadaasidkarbonik,HzCOsannatrium ydrogenarbonat, aHCO3.erangkan agaimanasistemniberfungsidalamengawalanHdarah. [4 markah]

(b) 20.0cm3 f 0.20moldm-3 H3 kueus ititratkanengan .16moldm-3 CIakuas.Lakarkan atugraf pH awan sipaduHCI(ak) itambahkanemasaprosespentitratan.Tandakanan erangkanedudukanakatkesetaraan. [4 markah]

(c) Tenaga engaktifan,",suatu indak alas oleh ihitungkanaripada ersamaanArrhenius ' k - A|-E"/RTdi mana = pemalar adar,R = pemalar as,T = suhu, anA = faktor rekuensi.Pematar-pemalaradarbagipenguraiansidasetondikarboksilikdalah = 4.75x 10ag1pada293K dank = 1.63x 103's-1pada303K.

CO(CH2COOH)zak) =- CO(CH3)2(ak)2 COz(g)(i ) Hitungkanenaga engaktifan," , bagitindak alasni. [4 markah](ii) Tuliskan ersamaanadarbagitindak alas tu. [1 markah](iii) Kirakanmasayangdiambil ntuk epekatan O(CH2COOH)zak)berubah

dari2.00moldm-3 e1.00moldm-3 ada303K. [2 markah]

6. (a) Databerikut dalah iperolehiagiklorin.Perubahanntalpi engatoman, AHr = +121kJmol-1Afinitielektron, AHz = - 364 kJ mo'lPerubahanntalpi enghidratan, AH3 = - 381kJ mol-1

Denganmelukis uatu itar enaga tauselainya, itungkanerubahanntalpi agi indakbalasberikut, Hn.

%Clz@)+water+e +Cl-(aq) ,AHr.Deduksikanekuatan lorin ebagai genpengoksidaanerdasarkanilaiAHa angdiperoleh [6 markah]

15



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Gases anonlybe iquefiedypressure loneftheir emperatures belowheiremperature',".Abovehe criticaltemperatureo amount f pressure ill iquefyollowing ataandsuggest n explanationor heircriticaltemperatures.

Gas formula M, T"/ocMethaneAmmonia

steamCHoNHsHzo

161718

-82133374

[5 marks](ii) In he ndustrialiquefactionfair,highpressure ir sallowedo expandntoaf owpressure, hereuponts emperatureropsby a largeamount. n dealgas

notshow hisbehaviour. ivean explanationor he aboveobservation.[4 marks]

The ormation f magnesiumxide anberepresenteditha Born-Haberycleas

Md-(sl r 0r3-{g)

16

J*s(g)f*Ms(s)J*,g(s)tIn ' ,olslAI an,o(g)AI ar.* o,,o

(a) (i)Name he enthalpy hangeAHr,AHzand AHz [3marks]


54/76

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(E)dO+ F).Iyt'qe/neq;puellnfunilp6ueIq.redasoqeH-uroge1r1 eOuap elrequeE;p eloqeprslournrseuFeuelnluequad L

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F)b+'HvY(E)o'Hv

V (t)8ltl'fl, I(E

'Hg)oI

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55/76

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56/76

[qeryeug] 'rp1y epzHV"HV rd;e1uaeqeqnledeleureNl) (e)

tE)dO+ F).zrw'qe/neq;pue11nfunilpueIryedes eqeH-urogeyl ue6uep elrequreOlpeloqeptslountseu6eut elnluequed L

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57/76

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,-lotu l09ll+ =,-loul I91.+ =,-lou l09l+ =

Jol rHV uollewrolJo Oueqc{dleq1ueql elelnclec'elepu;mo11olql uot3 (g;)

,HVeHV+sHV+tHV

cHv,HV,HV

'epxountseuOeu

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59/76

CONFIDENTIAL-

9. (a) Explain he term optical somerism, sing he compoundCHaCH(OH)CH2CH3s ?rlexample. [3 marks]

(b ) X, C8H10Oliberates hite umeswithphosphorous(V)hloride. reactswithalkalineiodineo giveyellow recipitates. henX is heatedwithan excess fconcentratedsulphuriccid, ompound is formed. canbeconvertedoX. Under uitable onditionsY undergoesolYmerization.

Determinehestructure fX andY. Explain owyouderive hestructuresndwrite heEquationsfthereactionsnvolved. [Tmarks]

(c) Compounds andB are wo somers ithmolecularormulaCaHroO.dissolvesnaqueousodium ydroxideutB doesnot.Bgivesoffwhite umeswith hionyl hloride ndformsa yellow recipitate ithalkaline queousodine utA doesnot.B is synthesisedstartingrombromobenzenehereas is rom4-ethylaniline.

Explainheaboveobservationsndwrite hestructuralormulae f A andB. [5 marks]

10. a)Compounds andS have he ollowingtructure.@"HzCHzNHz @"t2coNH2

RS(i) Writeequationsor hereac,tions,f any,whenR andS react eparately ith

dilute ydrochloriccidunder uitable onditions. [2 marks](ii) Describe riefly chemicaltest,tatinghe reagents ndconditionssed, nd

observations,o distinguishetween andS. [3 rnarks]

20



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epuoll ruoBeOuep.{11ndeserne>lprseqFueul'lepllg ldelal nenleeplsloJplqnuleuu.relepnrelV'Ootl{sCnleloul lnurlo}eEuapeulosl npLlelepe uepV uelleqes(c)

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61/76

CONFIDENTIAL* 22

(b) Statehe reagents ndconditionsorsteps , ll and lll. Drawhestructuralonnulae fA andB.CH3CH2CH2BT g II, CH*CHaCHaCOTH

I II

Bf CHsCHzCTCO2CIQlo* [5marksl

(c) Describehe scheme f reactions(inotmorehan3 steps), latinghereagents ndconditions,orthesynthesis" @cooc2H' startingrom@Lr. . [Smarks]



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g

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;.]ARATANPEI'A,TARANOHOR ,/A "ffi\ ,IJOHOR JABATAN PELA,JARAN IOH7R .IABATAN,t,t rra.D 4RANJOHOR JA ffiK ,lJOHOrt , ^/l't e62 i**torooro ffilK ',i\fri^PERGUBAANrpM zo11iX'/ABA'|AN ELA.IARANOH}RJA ffiliffi\ {JoHoRJABATANELAJARANoHoRJABATANJABATANPELAJARANOHORJA {W) { JOHORJABATANPELAJARANOH1RJABATANJABATANPELAJAMNJoHoR JA \*-----=ffi/ { JoHoR JABATANzELAJARAN oHoR JABATAN.]ABATAN ELA.IARAN--' ^_ - .BATANPELAJARANOHOR,IARATAN'IABATAN'utotuyy,t, GHEMISTRY (KlMlA I B!ryy IELAJA&NJoHoR ABATAN,]ABATANPELA,IAMN J ITITI'I-- '' BATANPELAJARANJOHOR JABATANJABATANPELA'IARAN OHOR JABATANPELAJARANJOHORJABATANPELA,IARAN OHOR,IABATAN,IABATANPELAJARANJOHOR JABATAN PELAJARANJOHOR JABATAN PELAJARANJOHOR JABATANJABATANPELAJARAN OHOR JABATANPELAJARAN OHOR,IABATAN PELAJARANJOHOR,IABATAN,IABATANPELAJARAN OHOR TtIz G^UFI.F {ORJABATANPELAJARANJ)HOR JABATANJABATAN ELAJARANOHOR" MARK SGHEME {ORJ;;;i;.N.PELAJARAN JoHoR JABATAN.IABATANPELAJARANOHORJABATANPELAJARANOHORJABATANPELAJARANIOHOR ABATAN']ABATANPELAJARANOHORJABATANPELAJARANOHORJABATANPELAJARANOHORJABATAN,IIlBATANPELA,IARAN]OHOR ABATAN ELAJARANOHOR,]ABATANELAJARAN,]OHOR,IABATAN,IABATAN ELA.IARANOHORJABATANPELAJARANOHORJABATANPEI-AJAMN JOHOR IABATAN

JABATAN PELAJARAN JOHOR

SIJIL TINGGI PERSEKOLAHAN MALAYSIA

STPM 96211CONT'IDENTI.A L*



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ANSWERFORCHEMISTRY APER1 (TRIALEXAM}2011

1 D 11 D 21 c 31 B 41 G2 A 12 D 22 D 32 A 42 c3 D 13 B 23 B 33 B 43 A4 A 14 D 24 A 34 c 44 B5 A 15 c 25 D 35 c 45 D6 B 16 c 26 B 36 A 46 B7 c 17 A 27 D 37 B 47 B8 c 18 B 28 B 38 D 48 D9 A 19 G 29 B 39 D 49 B

10 B 20 B 30 c 40 c 50 B

.l

-lt{t{zfrleHtuzo(Jso

J{EzEJoY

EoTIo?ztr?

aaeaee)qN)\X:\ - \e.! Fr l\ F.\ \ b\xsf i t rA{EXqxExxxxxxxxvxHVxxxxxx\ \ \ \ \ \aetsRk=Nil i l i lTT\NS*\NN\\\ i { {i lTNHTNA A A ^'^ 'E\\\\\RERKE=N)q)q)q: \ : {e\ f.i F-i l,\ F.\ N{dtdi ldx\xx\\xxxxxxVYYYY\:H\ {i \- >{rurqqqEE ERRTt r tJxst N x *\,-\J <


65/76

Question Details Mark Awarded1(a)(i)

1(a)(ii)

PV= nRT500 103x 0.0 10-3 (1.5 x + 1,2) 8.31 29gX=1.3Or. . 500x 103x20.0x 10-3x= - 2.7

1.5

8.31x 2981.3

x500=l88kPa1.5 I 3+1.2

111

1(bxi)1(bxiD

N: 1s22s22p3xx +*Ho*lx*IJ*otHH

1(c)(i)

1(c)(ii)

Relativemolecularmassof propanones higher, hereforestrongerVan der Waals orces of attractionsexist betweenmolecules ompared o the ether.Ether:sp3Propanone:spt,sp'



66/76

Question Details MarkAwarded2(a)(i)

2(a) (ii)

2(a) iii)

2(a)(iv)

The standardelectrodepotentialis the potential differencebetween the standard hydrogen electrode and otherelectrode systems with the concentration of 1.0M at tatm / under standard conditions

SrOu t- 2e2l

-->---+

2SOot-la+2e

Sror'- 2r 2SOot-Pt(s)/ l - (aq), lz(aq) SrOu o (aq) , SOa2- (aq) / pt(s)

E@ ur = +2-A1V-(+0.54V)=+1.47Y2 (b) (i)

2 (b) (ii)

2 (b )(iiD

PS solidliquid& gas Q: solid&liquid R: liquidT: Gas

Densityof solid W is lower han liquidW.The meltingpointdecreasewith increase n pressure

4-5 correct:2m2-3 correct:1m



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3 (a) (i)3 (a )(ii)

3 (a) (iii)

3 (a) (iii)

K.p= [ pb'z.]lllR.M.M f Pbl2 461,concentration f Pbl2 n water=0.46g dm-.The concentration f the lead on = 0.46t461

= 9.978X 104moldm-3=10.0X 10-4moldm-3

The concentration f the iodide on = 2 X I pbr.J=2X9.978X10-4. , . , , : . = 1.996X103moldm-3= 2.eX 103moldm-3

K"p= [Pbr.][r],=[9.978X 104 l 1.996X 10-.12= 3.975X 10-emol3dm-e= 4.0X 10-emol dm-9,

3 (b) (i)3 (b) (ii)3 (b) (iii)

Nitrogenmonoxidegas,NO3Cu1"y 8HNO31"qy'3Cu(NO3)21"01Browngas : nitrogendioxide,NO22NQnl + Oe{s)e 2NO4e1Colourless Brown

+ 2NO(e)+ 4HzOo)



68/76

Question Details MarkAwardedaa(i')

('i)I

Acid-basereactionAmine unctional roupFunctionafroup : EsterTypeof reaction : hydrolysisStructuralormula:

CHrIIN:

CHzIIIC\ C

CHzIIrts,COO-Na* c2H5oH

4(b) (i)(iD(iiD

(iv)

RefluxNucleophilicubstitutionStep1- magnesiumnddryetherStep2 - CH3CHOollowed y dilute cidSodium PCls SOCI2PCl3



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Question Details Mark Awarded5(a) H2CO3(aq)


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Details

%.ch(o)-ll3l-+ct1g1l r^rL l-ta+JICr(aq) -38r cr(g)

AHa= +121+(-364)+1-381)= 121-364-381= 424 kJAHavery exothermic,

4 correct:2m3 correct: m

6(bxi) Criticaltemperatureof CH+ < NHe < HzO- CHohas weak Van der Waals forcesof attractionbetweenmolecules,- NH. and steamhasstrongH-bonding- H-bonding n water s stronger han n ammonia- the stronger he intermolecularorcesof attraction the moregnergys requiredo overcomehem,hus hecriticaltemperature-Energy s required o overcome he intermolecularorcesofattraction.- energy s drawn romthesurroundings,emperature rop-idealgas has negligibrentermolecularorcesof attraction- expansionof idealgas doesnot requireenergy o overcome heintermolecularorcesof attraction



71/76

Question Details Mark Awarded

(ii)

7(a)(i)

(iii)

AHt = Atomisation nthalpy f magnesiumLHz = First onisation nergyof magnesiumAH7= Latticeenergyof magnesium xide

AHr =AHr +AHz +AHs +AHq +AHs +AHo + AHz= +150+(+736)+1+ 1450)+(+ 50) +(-3389)

= - 603 kJ/mof

The chargeof Mg 2*ion and Ba 2*ion arethe same but the size of theMg * ion is smallercompared o the Ba 2*ionLatticeenergy= QrQ.r* *[-So, Latticeenergyof MgO> BaO

III

III

II

b(D - CFCscan causedepletionof ozone ayer- because heyare unreactivefnitiation tep: CCI2F,2> . CCIFz+ oClPropagation tep : o Cl + O. -+ ClOo + OzNet reaction : 2Qt

ClOo +O -> oCl+Oz-----+ 3O2

(ii) Hydrofluorocarbon,FCwill not releasedamaging hlorinereeradicalsnto he atmosphereORC-H bondswillbr-eakownbefore heyreachstratosphere



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Question Details Mark Awarded8(aXi)

8(a)(ii)

With cold NaOH(aq)-Chlorine undegoes disproporti nation' eaction n coldNaOH(aq) o form NaCland NaClO.0-1 +1Cl2 + 2NaOH > N*l +NaClO +HzO-Chlorineoxidised o NaCIOand reducedtoNaCl.TheNaCland NaCIOproducedare sodiumsalts and have no chlorinesmell.With hot NaOH(aq)-Chlorineundegoesdisproportionationeaction n hotNaOH(aq) o form NaCland NaClOs.0-1 +53Cl2+ 6NaOH ) SNaCl+NaClOs+3HzOChlorineoxidised o NaClOsand reduced o NaCl.TheNaCland NaClO.producedare sodiumsaltsand have nochlorine mell.- Fluorine s highly electronegative lement.HFhas hehighest b.p becausehydrogenbondingexistbetweenHFmolecules.- Hydrogen ondingdoes notexist n HCl,HBr nd HlbecauseCl, Br and I atoms are not highlyelectronegative.- b.p increases from HGlto Hl because he molecularsizeincreases rom HCI o Hl.-The larger he molecularsize, he stronger the Van derWaals forces of attraction between the molecules andthe higher the b.p.

I

II

(max5m)

I

II

III



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74/76

Question Details Mark Awardede(a) Opticalsomerismccursncompounds ith he samestructuralormulabutdiffer n theireffecton plan+polarisedlight.

- Opticd somers ontain chiral arbon,- Are nonsuperimposablerminor mageso oneanother,

1

(max3 marks)

- Rotateheplane fplane'polarisedight n oppositedirection ut o thesamedegree.Eg oHIcH. - c'- cH2cH3IH(b) SinceX giveswhite umeswith.fQlq,{ is an alcohol.

X gives a give yellowprecipitates ith alkaline odineshowsthatX has structure CH3CH(OH)RHenceX is 1-phenvlethanol.HsCH(OH)CoH,LEquations:CH3CH(OH)CoHs PCls -> CH3CH(CI)CoHs+

x HCI + POCIrWhite fumes

CH3CH(OH)CoHsX 4Iz+ 6Na OH- ----+ CHI3+yellow precipitate

CoHsCOO-Na5NaI+5HzOExcessH2SO4 CHz= CH (C6Hs)+Y HzOCH3CH(OH)CeHsX

X undergodehydration o form Y, phenylethgne,CHe:CHCoHr

II

I(7 )



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(c) - A and B are aromaticcompounds, ighlyunsaturated-Aisaphenol- B contains OH groupand he structure

OHIcH3-c-IH- 4-ethylanilineeactswith nitrousacid o produceA- bromobenzene eactswith Mg/dryetherto produceaGrignard eagent.The Grignard eagent then reactswithethanaltoproducea 20alcohol,B OHICHCH:A: B:

cH2cH3

11



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Question

10(a)(i)Details MarkAwarded,r;

chemistry edujoshua

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