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GCE JAN 2011 : (AS 2) Organic, Physical and Inorganic Chemistry - Revised

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Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED SUBSIDIARY (AS) General Certificate of Education January 2011 Ceimic ag meas n Mod l 2: Ceimic Org nach, Fhisiceach agus Neamhorg nach AC121 Aonad Meas naithe AS 2 [AC121] D ARDAOIN 20 EAN IR, IARN IN AM 1 uair 30 n im ad TREOIR D IARRTH IR Scr obh d Uimhir L rionaid agus d Uimhir Iarrth ra sna sp sanna chuige sin ag barr an leathanaigh seo. Freagair gach ceann de na seacht gceist d ag. Freagair gach ceann de na deich gceist i Roinn A. Taifead do chuid freagra tr d an litir chu a mharc il ar an leath n freagra at ar f il. N h s id ach na sp sanna at uimhrithe 1 go 10. Coinnigh an seiceamh agus t ag freagairt na gceisteanna. Freagair gach ceann de na seacht gceist i Roinn B. Scr obh do fhreagra sna sp sanna chuige sin sa scr dph ip ar seo. FAISN IS D IARRTH IR Is 100 an marc ioml n don ph ip ar seo. Meas n far caighde n na cumars ide scr ofa i gceist 17(b). T an marc c anna ag dul do na ceisteanna uilig i Roinn A, .i. dh mharc do gach ceist. I Roinn B l ir onn na figi ir idir l ib n ar thaobh na l imhe deise de leathanach an marc at ag dul do gach ceist n do chuid de cheist. T T bla Peiriadach na nD l (roinnt sonra san ireamh) ar f il. Don Scr daitheoir amh in Uimhir Marcanna Ceiste Roinn A 1 10 Roinn B 11 12 13 14 15 16 17 Marc Ioml n 6854.02 LEATHANACH B N 6854.02 2 [Turn over Roinn A I gc s gach ceann de na ceisteanna seo a leanas n l ach ceann amh in de na freagra litreach (A D) ceart. Roghnaigh an freagra ceart i ngach c s agus marc il a ch dlitir tr na poncanna a cheangal mar at l irithe ar an leath n freagra . 1 Iain bhairiam, c n ceann de na dathanna seo a leanas a thugann siad i dt st il lasrach? A Gormghlas B Glas C Dearg D Bu 2 C n ceann acu seo th os a l ir onn c im iomadaithe i gcl ir ni meat in? A CH4 + Cl2 CH3Cl + HCl B CH4 + Cl CH3 + HCl C CH3 + Cl CH3Cl D CH4 + Cl CH3Cl + H 3 Agus CFC 114 in s id mar chuisne n, b onn 14% carb in, 44.4% fluair n ann agus is cl ir n an m id at f gtha. C n ceann acu seo th os arb an fhoirmle eimp reach do CFC 114? A CFCl B CF2Cl C C2F4Cl5 D C3F6Cl4 4 Th inig deasc n b n ar thuaslag n sulf ite nuair a cuireadh tuaslag n hiodrocsa d s idiam agus tuaslag n am inia araon leis go leithleach. Bh an deasc n b n intuaslagtha i dtuaslag n a raibh farasbarr hiodrocsa d s idiam ann agus i dtuaslag n a raibh farasbarr am inia ann araon. C n ceann acu seo th os arb an tsulf it e? A Al2(SO4)3 B MgSO4 C Na2SO4 D ZnSO4 6854.02 3 [Tiontaigh an leathanach 5 C n ceann de na m il n seo th os ar f idir leis a bheith ann mar isim ir cis agus mar isim ir trans (E Z)? A CH2==CHCH(CH3)CH3 B CH2==CHCH2CH2CH3 C CH3CH==CHCH2CH3 D CH3C(CH3)==CHCH3 6 Is f idir copar a east scadh tr ocsa d chopair(II) a th amh le carb n. 2CuO(s) + C(s) 2Cu(s) + CO2(g) C n ceann acu seo th os arb barainneacht adaimh an imoibrithe ? A 40.0% B 69.5% C 74.4% D 80.0% 7 C n ceann acu seo th os a l ir onn an t-athr eantalpachta caighde nach le haghaidh foirmi eat n il? A 2C(g) + 6H(g) + O(g) C2H5OH(g) B 2C(s) + 3H2(g) + O(g) C2H5OH(l) 1 C 2C(s) + 3H2(g) + 2 O2 (g) C2H5OH(g) 1 D 2C(s) + 3H2(g) + 2 O2 (g) C2H5OH(l) 6854.02 4 [Turn over 8 Taispe nann an t bla seo a leanas athr eantalpachta neodraithe le haghaidh imoibrithe aig ad-bhuin irithe: Aig ad Bun Athr eantalpachta neodraithe/kJ mol 1 HCl NaOH 57.2 X NaOH 55.2 HCl Y 52.2 HNO3 KOH Z Is iad c annachta X, Y agus Z: X Y Z A tuaslag n am inia 57.2 B aig ad sulfarach tuaslag n am inia 55.2 C aig ad aic iteach hiodrocsa d s idiam 52.2 D 9 aig ad aic iteach aig ad sulfarach hiodrocsa d s idiam 57.2 C n ceann de na halc il seo th os a mbeidh toradh dearfa air sa t st il iadafoirm? A CH3CH2CH2CH2CH2OH B CH3CH2CH2CH(OH)CH3 C CH3CH2CH(OH)CH2CH3 D CH3C(CH3)2CH2OH 10 Anseo th os t eantalpachta caighde nacha d ch in le haghaidh carb in, hidrigine agus eit n, C2H2. Eantalpacht chaighde nach d ch in (kJ mol 1) C(s) + O2(g) CO2(g) 394 1 H2(g) + 2 O2(g) H2O(l) 286 1 C2H2(g) + 2 2 O2(g) 2CO2(g) + H2O(l) 1300 C n ceann acu seo th os arb an eantalpacht chaighde nach le haghaidh foirmi eit n? A 226 kJ mol 1 B +226 kJ mol 1 C 620 kJ mol 1 D +620 kJ mol 1 6854.02 5 [Tiontaigh an leathanach Roinn B Scr daitheoir Amh in Marcanna Athmharc Freagair gach ceann de na seacht gceist sa roinn seo. 11 (a) T ais d s idiam, NaN3, sna m la aeir a bh onn in s id i gcarranna. Nuair a bh onn imbhualadh ann, l ontar an m la aeir go gasta le g s n trigine n imoibri seo a leanas: 2NaN3(s) 2Na(s) + 3N2(g) T H don imoibri dearfa. (i) C n t-ainm a thugtar ar imoibrithe ina bhfuil H dearfa? _________________________________________________ [1] (ii) Lip adaigh na haiseanna th os agus tarraing l ar id leibh al eantalpachta don imoibri . [3] (iii) Agus an m la aeir teannta ina ioml ine, b onn 50 dm3 n trigine ag 20 C agus br atmaisf ir amh in ann. C n mhais d ais d s idiam at de dh th leis an toirt n trigine seo a th irgeadh? ___________________________________________________ ___________________________________________________ _________________________________________________ [3] 6854.02 6 [Turn over (b) T tiontair catala ocha ina gcuidi le laghd ar an dochar a dh antar don timpeallacht mar gheall ar astuithe sceite feithicl . Scr daitheoir Amh in Marcanna Athmharc (i) Scr obh cothrom id lena thaispe int cad mar a bhaintear heapt n, C7H16, gan d amach as na hastuithe sceite. _________________________________________________ [2] (ii) Sa tiontaire catala och, is f idir go mbeidh imoibri ann idir aonocsa d charb in agus ocsa d n trigine(II) agus go nd anfar n trigin. Scr obh cothrom id don imoibri seo. _________________________________________________ [2] 6854.02 7 [Tiontaigh an leathanach 12 T maign isiam, cailciam agus bairiam i nGr pa II den T bla Peiriadach. Scr daitheoir Amh in Marcanna Athmharc (a) Tuigtear gur d ile s-bloc iad na d ile i nGr pa II. M nigh cad chuige. _______________________________________________________ _____________________________________________________ [1] (b) (i) Scr obh cothrom id, agus siombail staide san ireamh inti, le haghaidh ch ad fhuinneamh ian ch in maign isiam. _________________________________________________ [2] (ii) Luaigh agus m nigh an t-athr ar luach an ch ad fhuinneamh ian ch in mhaign isiam go bairiam. ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [3] (c) Is f idir hiodrocs id chailciam a dhianscaoileadh tr na th amh. (i) Scr obh cothrom id le haghaidh dianscaoileadh hiodrocsa d chailciam. _________________________________________________ [1] (ii) D an compar id idir teirmeachobhsa ocht hiodrocsa d mhaign isiam agus teirmeachobhsa ocht hiodrocsa d bhairiam agus tabhair m ni air. ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [3] 6854.02 8 [Turn over (iii) M nigh an difr ocht i luach pH nuair a dh antar 0.1 m l hiodrocsa d mhaign isiam agus 0.1 m l hiodrocsa d bhairiam a chorra le codanna leithleacha de 100 cm3 d uisce. Scr daitheoir Amh in Marcanna Athmharc ___________________________________________________ ___________________________________________________ _________________________________________________ [2] 6854.02 9 [Tiontaigh an leathanach 13 Is peitriliam amh an fhoinse do hidreacarb in amhail alc in. Scr daitheoir Amh in Marcanna Athmharc (a) C n d igh a bhfaightear alc in pheitriliam amh? _____________________________________________________ [1] (b) Is alc n ocht n, C8H18, ar comh bhar de pheitreal . (i) Is hidreacarb n s ithithe ocht n. Cad an chiall at leis na t arma s ithithe agus hidreacarb n? ___________________________________________________ ___________________________________________________ _________________________________________________ [2] (ii) Luaigh an t-ainm c rasach don isim ir d ocht n a thaispe ntar th os. CH3 CH3 CH3 C C CH3 CH3 CH3 _________________________________________________ [1] (c) Is f idir ailc in , amhail pr ip in, a fh il alc in amhail ocht n. (i) C n t-ainm a thugtar ar an phr iseas ina nd antar ailc in a fhoirmi alc in? _________________________________________________ [1] (ii) Luaigh toisc amh in at riachtanach don phr iseas seo. _________________________________________________ [1] (iii) Scr obh cothrom id le haghaidh foirmi pr ip ine ocht n. _________________________________________________ [1] 6854.02 10 [Turn over (iv) Cuir s os ar th st il cheimiceach le haghaidh hidreacarb n neamhsh ithithe amhail pr ip in. Scr daitheoir Amh in Marcanna Athmharc ___________________________________________________ ___________________________________________________ _________________________________________________ [2] (v) Scr obh cothrom id don imoibri at i gceist sa t st il a gcuirtear s os uirthi i gcuid (iv). _________________________________________________ [1] (d) T ailc in n os imoibr che n alc in. M nigh cad chuige. _______________________________________________________ _____________________________________________________ [1] (e) Imoibr onn ailc in amhail pr ip in le br im d hidrigine. (i) Agus sreabhl ar id in s id agat, luaigh an mheicn ocht don imoibri idir alc n agus br im d hidrigine. Tig leat an ailc in a l iri mar: C==C [3] (ii) C n t-ainm a thugtar ar an chine l imoibrithe idir pr ip in agus br im d hidrigine? _________________________________________________ [2] 6854.02 11 [Tiontaigh an leathanach 14 T n otr it am inia agus uisce i bpaca oighir irithe a bh onn in s id le gortuithe sp irt a ch ire il. Bristear caps l a bhfuil an t-uisce ann, tuaslagann an n otr it am inia agus titeann an teocht. Scr daitheoir Amh in Marcanna Athmharc (a) Fuarthas na tortha seo a leanas nuair a cuireadh n otr it am inia le huisce. Mais uisce = 100 g Mais n otr it am inia = 5.0 g Teocht thosaigh = 25.0 C Teocht dheiridh = 24.1 C T saintoilleadh teasa uisce = 4.2 J g 1 C 1 (i) R omh an t-athr eantalpachta at ag tarl . ___________________________________________________ _________________________________________________ [2] (ii) C mh ad m l de n otr it am inia a bh in s id? ___________________________________________________ _________________________________________________ [1] (iii) R omh an t-athr eantalpachta m larach leis an n otr it am inia a thuaslagadh in 100 g uisce. ___________________________________________________ _________________________________________________ [1] (b) D anann monar ir irithe paca oighir a bhfuil 120 g uisce ann. C n mhais de n otr it am inia a bheidh de dh th le go dtitfidh an teocht 25.0 C? _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] 6854.02 12 [Turn over 15 In 1903 forbra odh an pr iseas Birkeland-Eyde le haig ad n treach a dh anamh. Is ar an d igh seo a leanas a imoibr onn n trigin agus ocsaigin i gc ad ch im an phr isis: N2(g) + O2(g) 2NO(g) Scr daitheoir Amh in Marcanna Athmharc H = +180 kJ mol 1 M nigh an ifeacht, m bh onn ifeacht ar bith ann, a bheidh ag gach ceann de na hathruithe seo a leanas ar th irgeacht ocsa d n trigine(II) agus ar r ta an imoibrithe. (a) An teocht a mh ad . _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] (b) N os m n trigine a chur leis. _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] (c) An br a mh ad . _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [3] (d) Catala och a chur leis. _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] 6854.02 13 [Tiontaigh an leathanach 16 S ltear go bhfuil f on illithe mar gheall ar eat nal agus aig ad aic iteach. Scr daitheoir Amh in Marcanna Athmharc (a) D antar speictreasc pacht infridhearg ar shampla den fh on agus cuirtear na tortha i gcompar id leis na speictrim d eat n l, d eat nal agus d aig ad aic iteach. T na speictrim infridhearga d eat n l, d eat nal agus d aig ad aic iteach anseo th os (ach n chaithfidh go bhfuil siad san ord sin). Speictream A 100 tarchuras/% 80 60 40 20 4000 3500 3000 2500 2000 1500 1000 2000 1500 1000 tonnuimhir/cm 1 Speictream B 100 tarchuras/% 80 60 40 20 4000 3500 3000 2500 tonnuimhir/cm 1 6854.02 14 [Turn over Speictream C Scr daitheoir Amh in Marcanna Athmharc 100 tarchuras/% 80 60 40 20 4000 3500 3000 2500 2000 1500 1000 tonnuimhir/cm 1 (i) M nigh an d igh a nd antar rada ocht infridhearg a ions i m il n . ___________________________________________________ _________________________________________________ [1] 6854.02 15 [Tiontaigh an leathanach (ii) T sonra ar ions ch n infridhearg sa t bla seo th os. Scr daitheoir Amh in Marcanna Athmharc Nasc Tonnuimhir/cm 1 C H 2850 3300 C=C 1620 1680 C=O 1680 1750 C O 1000 1300 (alc il) O H 3230 3550 (aig id) O H 2500 3000 s id na sonra seo leis an ions ch n a shainaithint ag: Speictream A: (leathan) 3000 cm 1 _______________________ Speictream C: 1000 cm 1 ____________________________ [2] (iii) Sainaithin an m il n at ina ch is le: Speictream B: _______________________________________ Speictream C: _____________________________________ [2] (b) Is f idir eat n l a ocsa di ina eat nal n ina aig ad aic iteach de r ir an teicn c thurgnamhach a bh onn in s id. (i) Ainmnigh oibre n ocsa di ch in a bheadh f irsteanach. _________________________________________________ [1] (ii) Ainmnigh foirmle an iain a fhoirm tear tr d an oibre n ocsa di ch in seo a dh -ocsa di . _________________________________________________ [1] 6854.02 16 [Turn over (iii) Luaigh na teicn c turgnamhacha a bh onn de dh th leis na ruda seo a leanas a fhoirmi Scr daitheoir Amh in Marcanna Athmharc Eat nal: ___________________________________________ [1] Aig ad aic iteach: ___________________________________ [1] (c) Comhl naigh an l ar id seo th os agus luaigh foirmle na comhdh ile org na a fhoirm tear i ngach c s. Na PCl5 CH3CH2OH CH3COCl SOCl2 [4] 6854.02 17 [Tiontaigh an leathanach 17 Bh odh amfataim n in s id tr th le murtall, d lagar adrom agus neamhoird iompra ochta irithe a ch ire il. Is f idir an fhoirmle ghinear lta d amfataim n a l iri mar: Scr daitheoir Amh in Marcanna Athmharc CH3 R C NH2 H Is f idir amfataim n a shint isi tr na c imeanna seo a leanas. CH3 R C H CH3 CH3 OH C im 1 R C Br C im 2 R H C NH2 H (a) (i) Luaigh oibre n a bheadh f irsteanach do Ch im 1. _________________________________________________ [1] (ii) C n cine l imoibrithe at ag tarl i gC im 1? _________________________________________________ [2] (iii) Luaigh oibre n f irsteanach agus tosca f irsteanacha le C im 2 a dh anamh. ___________________________________________________ _________________________________________________ [2] 6854.02 18 [Turn over (b) An t irge leachtach a fhaightear Ch im 1, t s eis on. Luaigh sonra turgnamhacha lena mh ni cad mar is f idir a dheighilt, a thriom agus a on . Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [4] Caighde n na cumars ide scr ofa [2] SEO DEIREADH AN SCR DPH IP IR 6854.02 19 [Tiontaigh an leathanach Cuireadh isteach ar chead chun an t- bhar c ipchirt uile a at irgeadh. I gc sanna irithe is f idir n r irigh le CCEA teagmh il a dh anamh le h in ir c ipchirt agus beidh s s sta na hadmh lacha sin a f gadh ar l r a chur ina gceart amach anseo ach a chur ar an eolas. 6854.02

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Additional Info : Gce Chemistry January 2011 Assessment Unit AS 2Module 2: Organic, Physical and Inorganic Chemistry - Revised (Irish Medium)
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