ZXTape! 0Created with Ramsoft MakeTZXesection 5 ) +)))8x=7:y=6:z=0:y:y:z::1400x g64999:x=7:y=6:z=0:y:y:z::5,3;"Please leave tape running" "UDGC"65000,536 Q:70F:f$=" STOP THE TAPE ":v=10 :m=8:f=980:910  500 ( 5 FC2;"CHEMISTRY EXAMINATION PRACTICE";11 ;"AND TESTS": d n%2;"Q";q;0,12 ;h$  ques n=65195 n=1230  a;"a) ";a$ b;"b) ";b$ c;"c) ";c$ d;"d) ";d$ e;"e) ";e$  a=y:b=y:c=y:d=y:e=y  ,""300, 6=""3106 @=32 J?21,0;x;"Undefined key?";y;" please try again " T 300, ^""350^ h=""360h r=32 Ŧ=13 | 350^  q=q+1 ques,a$,b$,c$,d$,e$,w$,s  n=f17 /n,0;" " n  B21,0;" ";x;" Press any key to continue ";y;" " ""510 =""520  &!a=0:b=0:c=0 0d=0:e=0 : X618,0;" " b619,0;" " l n=0100d:n   600X 18,0;2;f$  )n=65196:n=165136p  )n=65196:n=065136p    i$ *k$="":f=i$ 4f=0800  > n=1f Hi$(n)=32 860\ R k$=k$+i$(n) \n f  f=990  v,m;""; 23729\,v n=1̱f$ f 23728\,m:65000 m=m+1:n  1;f$(n);: %1;5;1;f$(n);: 2;f$(n);: 5;f$(n);:  250  100d ?21,0;x;"Please select your answer";y;" "  800  ~0k$="a"k$="b"k$="c"k$="d"k$="e"1180 ?21,0;x;"Undefined Key ?";y;" Please try again"  1050 k$w$1280 w$="a"a=5 w$="b"b=5 w$="c"c=5 w$="d"d=5 w$="e"e=5  100d =f$="CORRECT":f=995:v=0:m=25:910 B20,0;"Use ";x;"ENTER";y;" for answer explanation" B21,0;"Use ";x;"SPACE";y;" for the next question "  350^ =13 1300 =32 C20,0;x;"Wrong-Correct answer is ";w$;" ";:" "  I21,0;x;"Answer explanation follows";:" ":350^  s (B20,0;"Use ";x;"ENTER";y;" to rerun this question" 2B21,0;"Use ";x;"SPACE";y;" for the next question " Z=32 d=13 1000 n 1320( x:q=0::250  h$,l$,qty  70F :f$=h$:v=3:m=((32 -f$)/2):900 -:::7;2;"Programme Content"  2010 !f$=" CELTIC REVISION SOFTWARE" v=18:m=3  900  500: k=1qty  750:65195,0  400  1000 k  9f$="End of "+h$:v=3:m=((32 -f$)/2) " 900 ,U10 ,0;x;"Press n then ENTER";y;" to auto-load programme ";2;l$ 6:::x;"Press r then ENTER";y;" to rerun thisprogramme" @1::x;"Press b then ENTER";y;" to goto BASIC" J 800  T"k$="n"k$="r"k$="b"1700 ^721,0;x;"Undefined key please re-select" h 1610J k$="n"1800 k$="r"5 L:5,2;"RETURNING TO BASIC DESTROYS";8;"THIS PROGRAMME" E::x;"Press y to return to BASIC"''"Press any other key to abort" 0:i$= i$="y"i$="Y"  1550 /:f$=" START THE TAPE ":v=5:m=8  900 :: l$ ""Section 5","section 6",12 v8,4;"Carbon Carbon Dioxide"''" Carbonates Carbon Monoxide";12 ,7;"Organic Chemistry": ."Which of the following are true of carbon?" Η'"1 Has two allotropes"'"2 Has an electron arrangement of 2, 4"'"3 Has two isotopes, C-12 and C-13"'"4 Forms four covalent bonds"  b2500 ,"1 only","1 and 2 only","2 and 3 only","1, 2 and 3 only","all of them","e",2540 2"The two allotropes are diamond and graphite." w'"Carbon forms four covalent bonds. It forms chains and ringsand its chemistry is called organic chemistry."  L"Which of the following is not suitable for preparing carbon dioxide?"  '3000 ,"marble pieces and dilute sulphuric acid","calcium carbonate and dilute hydrochloric acid","sodium hydrogencarbonate and dilute hydrochloric acid","sodium carbonate and dilute sulphuric acid","potassium carbonate and dilute hydrochloric acid","a",3030 D"CaCO(s)+HSO(aq) CaSO(s)+HO(l)+CO(g)" ['"The calcium sulphate formed is insoluble and coats the marble stopping the reaction." ?"Carbon dioxide is formed freely in all the other reactions." E'"CaCO(s)+2HCl(aq) CaCl(aq)+HO(l)+CO(g)" E'"NaHCO(aq)+HCl(aq) NaCl(aq)+HO(l)+CO(g)" E'"NaCO(aq)+HSO(aq) NaSO(aq)+HO(l)+CO(g)" E'"KCO(aq)+2HCl(aq) 2KCl(aq)+HO(l)+CO(g)"  6"Which of the following are true of carbon dioxide?" '"1 Colourless, odourless gas"'"2 Supports combustion"'"3 Heavier than air"'"4 Turns litmus solution deep red"'"5 Turns clear lime water milky"'"6 Is insoluble in water"  u3500 ,"1 and 2 only","3 and 4 only","2, 4 and 5 only","2, 3, 5 and 6 only","1, 3, 4 and 5 only","e",3530 I"Carbon dioxide dissolves in water to form weak carbonic acid." !'" HO(l)+CO(g) HCO(aq)" @''"Carbon dioxide forms calcium carbonate with lime water." E'"Ca(OH)(aq)+CO(g) CaCO(s)+HO(l)"  T"When burning magnesium is plunged into a gas jar of carbon dioxide:"  4000,"it is extinguished","magnesium oxide and black carbon are formed","magnesium carbonate is formed","magnesium hydrogencarbonate is formed","black magnesium carbide and oxygen are formed","b",4030 M"The burning magnesium is hot enough to decompose the carbon dioxide." $''" 2Mg(s)+CO(g) 2MgO(s)+C(s)"  L"Which of the following carbonates does NOT decompose onheating?"  4500,"potassium carbonate","calcium carbonate","magnesium carbonate","zinc carbonate","copper(ii) carbonate","a",4530 B"The other carbonates form the oxide and carbon dioxide. e.g." !''" CaCO(s) CaO(s)+CO(g)"  c"In which order do the following occur in the Solvay Process for production of sodium carbonate?" V13 ;"heat";'"1 2NaHCO(s) NaCO(s)+CO(g)+HO(g)" E'"2 NHOH(aq)+HCO(aq) NHHCO(aq)+HO(l)" E'"3 NHHCO(aq)+NaCl(aq) NaHCO(s)+NHCl(aq)"  a5000,"1, 2 then 3","1, 3 then 2","3, 1 then 2","2, 3 then 1","2, 1 then 3","d",5060 j"A saturated solution of brine flows down an ammoniating tower.It then flows down a carbonatingtower." >'"The ions present are, NH,"'"HCO and Na (equation 2)." R'"The least soluble combination, NaHCO precipitates (equation 3)." 9'"The sodium hydrogencarbonate is heated (equation 1)."  |K"In which of the following reactions is carbon monoxide formed?" '"1 Cold conc. sulphuric acid and sodium methanoate"'"2 Heat calcium carbonate"'"3 Heat ethanedioic acid and conc. sulphuric acid"'"4 Heat carbon and carbon dioxide"  b5500|,"1 only","1 and 2 only","3 and 4 only","1, 3 and 4 only","all of them","d",5540 D"HCOONa(s)+HSO(l) NaHSO(aq)+HO(l)+CO(g)" Y''10 ;"HSO";'"(COOH)(s) CO(g)+CO(g)+HO(l)" ''"C(s)+CO(g)2CO(g)"  pI"Which of the following are true of carbon monoxide?"'"It reacts with:" zP"1 sodium hydroxide at 470K under pressure to form sodium methanoate" "2 chlorine to form carbon oxide dichloride"'"3 sulphur to form carbon oxide sulphide"'"4 nickel to form tetracarbonyl nickel"  b6000p,"1 only","1 and 2 only","2 and 3 only","1, 2 and 3 only","all of them","e",6050 " CO(g)+NaOH(l) HCOONa(l)" '" CO(g)+Cl(g) COCl(g)" '" CO(g)+S(g) COS(g)"  '" 4CO(g)+Ni(s) Ni(CO)(g)"  d4"Which of the following are true of methane, CH?" n'"1 Colourless, odourless gas"'"2 Burns to carbon dioxide and steam"'"3 Saturated hydrocarbon","4 Undergoes addition reactions" x b6500d,"1 only","1 and 2 only","2 and 3 only","1, 2 and 3 only","all of them","d",6540 7"Unsaturated hydrocarbons undergoaddition reactions." D''"Methane undergoes substitution reactions, e.g. with chlorine."  X1"Which of the following refer to ethene, CH?" b'"1 Colourless gas"'"2 Unsaturated hydrocarbon"'"3 Undergoes addition reactions"'"4 Burns explosively to form carbon dioxide and steam" l vb7000X,"1 only","1 and 2 only","2 and 3 only","1, 2 and 3 only","all of them","e",7040 "Ethene is a colourless gas which burns explosively to form carbon dioxide and steam. It is an unsaturated hydrocarbon whichundergoes addition reactions."  L]"The formula C H represents"''" CH.CH.CH.CH"''"and CH.CH(CH).CH"''"These are:" V `V7500L,"isomers","polymers","isotopes","isomorphous","allotropes","a",7530j jy"Isomerism is the occurrence of two or more compounds with the same formula but different molecular structures." t @H"Ethanol and ethanoic acid react to form ethyl ethanoate."''"This is:" J Tb8000@,"esterification","hydrolysis","neutralization","oxidation","reduction","a",8030^ ^D"CHCOOH(l)+CHOH(l) CHCOOCH(l)+HO(l)" hA''"The reaction is reversible and equilibrium is established." r0'"The reaction is reversed by hydrolysis." | xyzvmfqabcdeH Section 5L section 6t F CELTIC REVISION SOFTWAREHuUDGC K\y 8x8͞ x<͞  ~%~%|Xg~ w$<<8$((!{\6X#6V+^!w#~!VUw+!~#~+w#w< $<0H xp0p0Px x@xx$$ffLRRRLx|LRDH^NP\RL0H x< << 8$>@ < <<$< 8$<$$<   $$ff(<x|88 0H x< <<DHW)Bhsection 6 :( '$<(8x=7:y=6:z=0:y:y:z::1400x g64999:x=7:y=6:z=0:y:y:z::5,3;"Please leave tape running" "UDGC"65000,536 Q:70F:f$=" STOP THE TAPE ":v=10 :m=8:f=980:910  500 ( 5 FC2;"CHEMISTRY EXAMINATION PRACTICE";11 ;"AND TESTS": d n%2;"Q";q;0,12 ;h$  ques n=65195 n=1230  a;"a) ";a$ b;"b) ";b$ c;"c) ";c$ d;"d) ";d$ e;"e) ";e$  a=y:b=y:c=y:d=y:e=y  ,""300, 6=""3106 @=32 J?21,0;x;"Undefined key?";y;" please try again " T 300, ^""350^ h=""360h r=32 Ŧ=13 | 350^  q=q+1 ques,a$,b$,c$,d$,e$,w$,s  n=f17 /n,0;" " n  B21,0;" ";x;" Press any key to continue ";y;" " ""510 =""520  &!a=0:b=0:c=0 0d=0:e=0 : X618,0;" " b619,0;" " l n=0100d:n   600X 18,0;2;f$  )n=65196:n=165136p  )n=65196:n=065136p    i$ *k$="":f=i$ 4f=0800  > n=1f Hi$(n)=32 860\ R k$=k$+i$(n) \n f  f=990  v,m;""; 23729\,v n=1̱f$ f 23728\,m:65000 m=m+1:n  1;f$(n);: %1;5;1;f$(n);: 2;f$(n);: 5;f$(n);:  250  100d ?21,0;x;"Please select your answer";y;" "  800  ~0k$="a"k$="b"k$="c"k$="d"k$="e"1180 ?21,0;x;"Undefined Key ?";y;" Please try again"  1050 k$w$1280 w$="a"a=5 w$="b"b=5 w$="c"c=5 w$="d"d=5 w$="e"e=5  100d =f$="CORRECT":f=995:v=0:m=25:910 B20,0;"Use ";x;"ENTER";y;" for answer explanation" B21,0;"Use ";x;"SPACE";y;" for the next question "  350^ =13 1300 =32 C20,0;x;"Wrong-Correct answer is ";w$;" ";:" "  I21,0;x;"Answer explanation follows";:" ":350^  s (B20,0;"Use ";x;"ENTER";y;" to rerun this question" 2B21,0;"Use ";x;"SPACE";y;" for the next question " Z=32 d=13 1000 n 1320( x:q=0::250  h$,l$,qty  70F :f$=h$:v=3:m=((32 -f$)/2):900 -:::7;2;"Programme Content"  2010 !f$=" CELTIC REVISION SOFTWARE" v=18:m=3  900  500: k=1qty  750:65195,0  400  1000 k  9f$="End of "+h$:v=3:m=((32 -f$)/2) " 900 ,U10 ,0;x;"Press n then ENTER";y;" to auto-load programme ";2;l$ 6:::x;"Press r then ENTER";y;" to rerun thisprogramme" @1::x;"Press b then ENTER";y;" to goto BASIC" J 800  T"k$="n"k$="r"k$="b"1700 ^721,0;x;"Undefined key please re-select" h 1610J k$="n"1800 k$="r"5 L:5,2;"RETURNING TO BASIC DESTROYS";8;"THIS PROGRAMME" E::x;"Press y to return to BASIC"''"Press any other key to abort" 0:i$= i$="y"i$="Y"  1550 /:f$=" START THE TAPE ":v=5:m=8  900 :: l$ ""Section 6","section 7",11 s8,7;"Nitrogen Ammonia"''10 ,7;"Oxides of Nitrogen"''12 ,10 ;"Nitric Acid": /"In which reactions is nitrogen NOT formed?"  س2500 ,"Heat ammonium nitrite","Chlorine and ammonia","Heat ammonium nitrate","Heat ammonia and copper(ii) oxide","Heat nitrogen oxide and copper","c",2530 "NHNO(s)N(g)+2HO(g)" $'"3Cl(g)+8NH(g)N(g)+6NHCl(s)" E'"3CuO(s)+2NH(g) 3Cu(s)+N(g)+3HO(g)" '"2Cu(s)+2NO(g)2CuO(s)+N(g)" S'"Industrially, nitrogen is obtained by the distillation of liquefied air."  H"The conditions in the Haber process for producing ammonia are:" €'"1 very high pressure"'"2 low pressure"'"3 high temperature"'"4 low temperature"'"5 presence of catalyst"'"6 excess nitrogen"  y3000 ,"2, 4 and 5 only","2, 3 and 6 only","1, 4 and 5 only","1,3,5 and 6 only","2, 3, 5 and 6 only","c",3030 " N(g)+3H(g) 2NH(g)" '"Applying Le Chatelier's principle:"''"PRESSURE: Formation of ammonia is accompanied by a reduction inthe number of molecules and is favoured by an increase in pressure." '"TEMPERATURE: Heat is given out when ammonia is formed and the forward reaction is favoured by a low temperature. This lowers the rate of reaction and a catalyst is used to speed up thereaction." 500: '"CONCENTRATION: Increase in the concentration of nitrogen favours the formation of ammonia. But in practice a satisfactory yield is obtained by using the gases in the ratio indicated by the equation."  $"Which are properties of ammonia?" '"1 Turns wet red litmus blue"'"2 Very soluble in water"'"3 Insoluble in water"'"4 Has a choking smell"'"5 Lighter than air"'"6 Heavier than air"'"7 Combines directly with hydrogen chloride"'"8 Reduces heated copper(ii) oxide to copper"  ʎ3500 ,"1, 3 and 6 only","5, 6, 7 and 8 only","2, 4, 6 and 8 only","1, 3, 4, 6, 7, and 8 only","1, 2, 4, 5, 7 and 8 only","e",3540 {"1 and 4 are used as the tests for ammonia. It is the only common alkaline gas. It is the most soluble gas known." ''"NH(g)+HCl(g) NHCl(s)" F''"2NH(g)+3CuO(s) 3Cu(s)+3HO(l)+N(g)"  *"Which of the following reactionsoccur?" '"1 NHNO(s)N(g)+2HO(g)"'"2 NHNO(s)NO(g)+2HO(g)"'"3 NHCl(s)NH(g)+HCl(g)"'"4 (NH)SO(s) 2NH(g)+HO(g)+SO(g)"  b4000,"1 only","1 and 2 only","2 and 3 only","1, 2 and 3 only","all of them","e",4040 C"All ammonium compounds decomposewhen heated. Some also sublime."  25: 1"Dinitrogen oxide (nitrous oxide)is formed in:"  4500,"Heat 50% conc. nitric acid and copper turnings","Heat ammonium nitrate","Heat ammonium nitrite","Heat lead(ii) nitrate","Heat potassium nitrate","b",4530 '" NHNO(s)NO(g)+2HO(g)"  25: ."Nitrogen oxide (nitric oxide) isformed in:"  5000,"Heat 50% conc. nitric acid and copper turnings","Heat ammonium nitrate","Heat ammonium nitrite","Heat lead(ii) nitrate","Heat potassium nitrate","a",5030 E'"3Cu(s)+8HNO(aq) 3Cu(NO)(aq)+4HO(l)+2NO(g)"  25: |""Nitrogen dioxide is formed in:"  5500|,"Heat 50% conc. nitric acid and copper turnings","Heat ammonium nitrate","Heat ammonium nitrite","Heat lead(ii) nitrate","Heat potassium nitrate","d",5530 D"2Pb(NO)(s) 2PbO(s)+4NO(g)+O(g)"  ''"Also" ''"NHNO(s) N(g)+2HO(g)" '"2KNO(s) 2KNO(s)+O(g)"  p6"Which of the following are true of nitrogen oxide?" z'"1 Rekindles a feebly burning splint"'"2 Extinguishes burning magnesium"'"3 Forms brown fumes with oxygen"'"4 Forms a brown colour with iron(ii) sulphate solution"'"5 Slightly soluble in water"  k6000p,"1 and 5 only","2 and 3 only","2, 3 and 4 only","3, 4 and 5 only","all of them","d",6040 "Nitrogen oxide forms brown fumesof NO with oxygen, and a brown colour with iron(ii) sulphate solution. It is slightly solublein water."  d8"Which of the following are true of dinitrogen oxide?" n'"1 Rekindles a glowing splint"'"2 Forms brown fumes with oxygen"'"3 Has a faint sickly smell"'"4 Quite soluble in water"'"5 Turns blue litmus solution red"'"6 Is neutral to litmus solution" x x6500d,"2 and 5 only","1, 2 and 4 only","3, 4 and 5 only","2, 3, 4 and 5 only","1, 3, 4 and 6 only","e",6540 '"Dinitrogen oxide will rekindle aglowing splint and has a faint sickly smell."''"It is quite soluble in water and is neutral to litmus solution."  X"As its temperature rises, the colour of nitrogen dioxide changes from yellow, through reddish-brown to almost black."''"This is because:" b l7000X,"of impurities","it decomposes to oxygen and nitrogen","at low temp. the gas consists of NO which dissociates on heating","of the formation of nitric acid","brown (FeSO)NO is formed","c",7030v v69 ;"heat"'" NO 2NO"'9 ;"cool" G4,4;"pale dark"'5,3;"yellow brown"  L3"Which of the following are true of nitric acid?" V'"1 It is a weak acid"'"2 It is a strong acid"'"3 It is dibasic"'"4 It is a strong oxidising agent"'"5 It reacts with metals to form hydrogen" [ `r7500L,"1 and 3 only","2 and 4 only","1, 3 and 5 only","1, 3 and 4 only","2, 3, 4 and 5 only","b",7530j j"Nitric acid is a strong monobasic acid and also a strongoxidising agent. With metals, it forms metallic nitrates, oxides of nitrogen, nitrogen andammonium compounds. Hydrogen is not liberated." t &"m";1;"s6" &1*"m";1;"s6"10 :*"m";1;"s6": &"m";1;"sec6" &5*"m";1;"sec6"10 :*"m";1;"sec6": xyzvmfqabcdeH Section 6L section 7t F CELTIC REVISION SOFTWARE;tUDGC  K\y 8x8͞ x<͞  ~%~%|Xg~ w$<<8$((!{\6X#6V+^!w#~!VUw+!~#~+w#w< $<0H xp0p0Px x@xx$$ffLRRRLx|LRDH^NP\RL0H x< << 8$>@ < <<$< 8$<$$<   $$ff(<x|88 0H x< <<DHW)Bfsection 7 # Q#,#8x=7:y=6:z=0:y:y:z::1400x g64999:x=7:y=6:z=0:y:y:z::5,3;"Please leave tape running" "UDGC"65000,536 Q:70F:f$=" STOP THE TAPE ":v=10 :m=8:f=980:910  500 ( 5 FC2;"CHEMISTRY EXAMINATION PRACTICE";11 ;"AND TESTS": d n%2;"Q";q;0,12 ;h$  ques n=65195 n=1230  a;"a) ";a$ b;"b) ";b$ c;"c) ";c$ d;"d) ";d$ e;"e) ";e$  a=y:b=y:c=y:d=y:e=y  ,""300, 6=""3106 @=32 J?21,0;x;"Undefined key?";y;" please try again " T 300, ^""350^ h=""360h r=32 Ŧ=13 | 350^  q=q+1 ques,a$,b$,c$,d$,e$,w$,s  n=f17 /n,0;" " n  B21,0;" ";x;" Press any key to continue ";y;" " ""510 =""520  &!a=0:b=0:c=0 0d=0:e=0 : X618,0;" " b619,0;" " l n=0100d:n   600X 18,0;2;f$  )n=65196:n=165136p  )n=65196:n=065136p    i$ *k$="":f=i$ 4f=0800  > n=1f Hi$(n)=32 860\ R k$=k$+i$(n) \n f  f=990  v,m;""; 23729\,v n=1̱f$ f 23728\,m:65000 m=m+1:n  1;f$(n);: %1;5;1;f$(n);: 2;f$(n);: 5;f$(n);:  250  100d ?21,0;x;"Please select your answer";y;" "  800  ~0k$="a"k$="b"k$="c"k$="d"k$="e"1180 ?21,0;x;"Undefined Key ?";y;" Please try again"  1050 k$w$1280 w$="a"a=5 w$="b"b=5 w$="c"c=5 w$="d"d=5 w$="e"e=5  100d =f$="CORRECT":f=995:v=0:m=25:910 B20,0;"Use ";x;"ENTER";y;" for answer explanation" B21,0;"Use ";x;"SPACE";y;" for the next question "  350^ =13 1300 =32 C20,0;x;"Wrong-Correct answer is ";w$;" ";:" "  I21,0;x;"Answer explanation follows";:" ":350^  s (B20,0;"Use ";x;"ENTER";y;" to rerun this question" 2B21,0;"Use ";x;"SPACE";y;" for the next question " Z=32 d=13 1000 n 1320( x:q=0::250  h$,l$,qty  70F :f$=h$:v=3:m=((32 -f$)/2):900 -:::7;2;"Programme Content"  2010 !f$=" CELTIC REVISION SOFTWARE" v=18:m=3  900  500: k=1qty  750:65195,0  400  1000 k  9f$="End of "+h$:v=3:m=((32 -f$)/2) " 900 ,U10 ,0;x;"Press n then ENTER";y;" to auto-load programme ";2;l$ 6:::x;"Press r then ENTER";y;" to rerun thisprogramme" @1::x;"Press b then ENTER";y;" to goto BASIC" J 800  T"k$="n"k$="r"k$="b"1700 ^721,0;x;"Undefined key please re-select" h 1610J k$="n"1800 k$="r"5 L:5,2;"RETURNING TO BASIC DESTROYS";8;"THIS PROGRAMME" E::x;"Press y to return to BASIC"''"Press any other key to abort" 0:i$= i$="y"i$="Y"  1550 /:f$=" START THE TAPE ":v=5:m=8  900 :: l$ !"Section 7","section 8",6 ڝ8,3;"Sulphur Hydrogen Sulphide";10 ,8;"Sulphur Dioxide";12 ,8;"Sulphur Trioxide";14,8;"Sulphuric Acid": A"Which of the following changes occur when sulphur is heated?" θ'"1 It melts to a mobile amber liquid"'"2 Liquid darkens and becomes viscous"'"3 Liquid becomes almost black and very viscous"'"4 Liquid becomes mobile then boils"  b2500 ,"1 only","1 and 2 only","2 and 3 only","1, 2 and 3 only","all of them","e",2540 J"Yellow sulphur consists of molecules, S, as puckered rings." '"1 When heated, molecules slide over each other."''"2 Bonds in rings begin to break and chains form."''"3 Chains lengthen and become entangled."''"4 At higher temperatures, chains break and finally liquid boils." 500: '"Sulphur has two allotropes" O'" above369K"'" rhombic monoclinic"'" below369K" ''"Plastic sulphur is formed when boiling sulphur is cooled rapidly in cold water."''"It becomes S, rhombic sulphur on standing."  O"In which of the following reactions is hydrogen sulphide NOT formed?"  3000 ,"iron(ii) sulphide and conc. nitric acid","iron(ii) sulphide and dil. hydrochloric acid","iron(ii) sulphide and dil. sulphuric acid","antimony(iii) sulphide and conc. hydrochloric acid","aluminium sulphide and water","a",3030 @"The hydrogen sulphide formed is oxidised by the nitric acid." E'"2HNO(aq)+HS(g) 2HO(l)+2NO(g)+S(s)" E'"FeS(s)+2HCl(aq) FeCl(aq)+HS(g)" E'"FeS(s)+HSO(aq) FeSO(aq)+HS(g)" E'"SbS(s)+6HCl(aq) 2SbCl(aq)+3HS(g)" E'"AlS(s)+6HO(l) 2Al(OH)(s)+3HS(g)"  O"In which of the following reactions is sulphur dioxide NOT formed?"  s3500 ,"Dilute hydrochloric acid and sodium sulphite","Dilute sulphuric acid and potassium sulphate" ʜ"Heat copper turnings and concentrated sulphuric acid","Dilute sulphuric acid and potassium sulphite","Burn sulphur in oxygen","b",3540 D"2HCl(aq)+NaSO(aq) 2NaCl(aq)+HO(l)+SO(g)" F''"Cu(s)+2HSO(l) CuSO(aq)+2HO(l)+SO(g)" F''"HSO(aq)+KSO(aq) KSO(aq)+HO(l)+SO(g)" ''"S(s)+O(g) SO(g)"  y"In the reaction "''"SO(g)+2HO(l)+Br(aq) 2HBr(aq)+HSO(aq)"''"sulphur dioxide is acting as:"  z4000,"an oxidising agent","a reducing agent","a dehydrating agent","a catalyst","an acid anhydride","b",4030 _"In the presence of water, sulphur dioxide forms sulphurousacid containing SO, then" E'"SO(aq)+HO(l) SO(aq)+2H(aq)+2e" ''"Br(aq)+2e 2Br(aq)" U''"Similarly,"'10 ;"manganate(vii) Mn"'10 ;"dichromate(vi) Cr" A''"This property makes sulphur dioxide useful as a bleach."  8"Which conditions are present in the Contact Process?" "1 Pure dry sulphur dioxide and oxygen"'"2 A high level of moisture"'"3 Optimum temperature of 500C"'"4 Catalyst of vanadium pentoxide"'"5 High pressure"'"6 Pressure just above atmospheric pressure"'"7 Trace of oxygen"'"8 Excess oxygen"  4500,"2, 3, 5 and 7 only","1, 3, 4 and 8 only","2, 3, 4, 6 and 7 only","1, 3, 4, 6 and 8 only","2, 4, 5 and 7 only","d",4540  '" 2SO(g)+O(g) 2SO(g)" 0''"Applying Le Chatelier's principle:" ''"PRESSURE: Forward reaction is accompanied by a reduction in the number of molecules and favoured by an increase in pressure."''"In practice, a good yield is obtained with a pressure just above atmospheric pressure."  500: ڷ'"TEMPERATURE: Forward reaction isexothermic and favoured by a lowtemperature. This slows down reaction. Optimum temperature is500C and a catalyst is used to speed up reaction." ''"CONCENTRATION: Increase in concentration of oxygen favours formation of sulphur dioxide as equilibrium shifts to right so as to nullify the increase in oxygen." $ x"In the reaction"''10 ;"HSO"'"C";:770:"H";:750:"O(s) 6C(s)+6HO(g)"'10 ;"heat" /'"concentrated sulphuric acid is acting as:"  w5000,"an acid","a reducing agent","a dehydrating agent","an oxidising agent","an acid anhydride","c",5040 V"Dehydration is the removal of the elements of water in a chemical reaction." ='"Drying is the removal of water; it is a physical change."  &"m";1;"s7" &1*"m";1;"s7"10 :*"m";1;"s7": &"m";1;"sec7" &5*"m";1;"sec7"10 :*"m";1;"sec7": xyzqabcdeH Section 7L section 8tvmfF CELTIC REVISION SOFTWAREuuUDGC K\y 8x8͞ x<͞  ~%~%|Xg~ w$<<8$((!{\6X#6V+^!w#~!VUw+!~#~+w#w< $<0H xp0p0Px x@xx$$ffLRRRLx|LRDH^NP\RL0H x< << 8$>@ < <<$< 8$<$$<   $$ff(<x|88 0H x< <<DHW)Besection 8 S- ,0U-8x=7:y=6:z=0:y:y:z::1400x g64999:x=7:y=6:z=0:y:y:z::5,3;"Please leave tape running" "UDGC"65000,536 Q:70F:f$=" STOP THE TAPE ":v=10 :m=8:f=980:910  500 ( 5 FC2;"CHEMISTRY EXAMINATION PRACTICE";11 ;"AND TESTS": d n%2;"Q";q;0,12 ;h$  ques n=65195 n=1230  a;"a) ";a$ b;"b) ";b$ c;"c) ";c$ d;"d) ";d$ e;"e) ";e$  a=y:b=y:c=y:d=y:e=y  ,""300, 6=""3106 @=32 J?21,0;x;"Undefined key?";y;" please try again " T 300, ^""350^ h=""360h r=32 Ŧ=13 | 350^  q=q+1 ques,a$,b$,c$,d$,e$,w$,s  n=f17 /n,0;" " n  B21,0;" ";x;" Press any key to continue ";y;" " ""510 =""520  &!a=0:b=0:c=0 0d=0:e=0 : X618,0;" " b619,0;" " l n=0100d:n   600X 18,0;2;f$  )n=65196:n=165136p  )n=65196:n=065136p    i$ *k$="":f=i$ 4f=0800  > n=1f Hi$(n)=32 860\ R k$=k$+i$(n) \n f  f=990  v,m;""; 23729\,v n=1̱f$ f 23728\,m:65000 m=m+1:n  1;f$(n);: %1;5;1;f$(n);: 2;f$(n);: 5;f$(n);:  250  100d ?21,0;x;"Please select your answer";y;" "  800  ~0k$="a"k$="b"k$="c"k$="d"k$="e"1180 ?21,0;x;"Undefined Key ?";y;" Please try again"  1050 k$w$1280 w$="a"a=5 w$="b"b=5 w$="c"c=5 w$="d"d=5 w$="e"e=5  100d =f$="CORRECT":f=995:v=0:m=25:910 B20,0;"Use ";x;"ENTER";y;" for answer explanation" B21,0;"Use ";x;"SPACE";y;" for the next question "  350^ =13 1300 =32 C20,0;x;"Wrong-Correct answer is ";w$;" ";:" "  I21,0;x;"Answer explanation follows";:" ":350^  s (B20,0;"Use ";x;"ENTER";y;" to rerun this question" 2B21,0;"Use ";x;"SPACE";y;" for the next question " Z=32 d=13 1000 n 1320( x:q=0::250  h$,l$,qty  70F :f$=h$:v=3:m=((32 -f$)/2):900 -:::7;2;"Programme Content"  2010 !f$=" CELTIC REVISION SOFTWARE" v=18:m=3  900  500: k=1qty  750:65195,0  400  1000 k  9f$="End of "+h$:v=3:m=((32 -f$)/2) " 900 ,U10 ,0;x;"Press n then ENTER";y;" to auto-load programme ";2;l$ 6:::x;"Press r then ENTER";y;" to rerun thisprogramme" @1::x;"Press b then ENTER";y;" to goto BASIC" J 800  T"k$="n"k$="r"k$="b"1700 ^721,0;x;"Undefined key please re-select" h 1610J k$="n"1800 k$="r"5 L:5,2;"RETURNING TO BASIC DESTROYS";8;"THIS PROGRAMME" E::x;"Press y to return to BASIC"''"Press any other key to abort" 0:i$= i$="y"i$="Y"  1550 /:f$=" START THE TAPE ":v=5:m=8  900 :: l$ "Section 8","tests",13 Q9 ,2;"Halogens And Their Compounds"'''12 ,12 ;"Metals": 8"In which of the following is chlorine NOT formed?"  82500 ,"Potassium manganate(vii) and conc. hydrochloric acid","Manganese(iv) oxide and conc. hydrochloric acid","Manganese (iv) oxide, sodium chloride and conc. sulphuric acid","Sodium hydroxide and dil. hydrochloric acid","Lead(iv) oxide and conc. hydrochloric acid","d",2530 t"The other equations involve the heating of concentrated hydrochloric acid with an oxidising agent." %''"2HCl(l) + [O] HO(l) + Cl(g)"  $"Which reactions WILL take place?" D"1 Cl(g)+2NaBr(aq) 2NaCl(aq)+Br(aq)" E'"2 Br(l)+2NaI(aq) 2NaBr(aq)+I(s)" E'"3 I(s)+2NaCl(aq) 2NaI(aq)+Cl(g)" E'"4 Cl(g)+2NaI(aq) 2NaCl(aq)+I(s)"  k3000 ,"1 and 2 only","3 and 4 only","1, 2 and 4 only","1, 2 and 3 only","all of them","c",3080 j"In the order Cl Br I, each halogen displaces an element to the right of it from simple salts."  0"Which of the following are true of chlorine?" '"1 Greenish yellow gas"'"2 Heavier than air"'"3 Does not bleach when dry"'"4 Forms hydrogen chloride and carbon with turpentine"'"5 Forms hydrogen chloride and sulphur with hydrogen sulphide"  h3500 ,"1 and 2 only","2 and 3 only","4 and 5 only","2, 3 and 5 only","all of them","e",3540 D"C H(l)+8Cl(g) 10C(s)+16HCl(g)" $''"HS(g)+Cl(g) S(s)+2HCl(g)"  O"In the reaction"''"2FeCl(aq)+Cl(g) 2FeCl(aq)"''"Chlorine is acting as:"  a4000,"an oxidising agent","a bleach","a reducing agent","an acid","a base","a",4030 /"Iron (ii) is oxidised to iron (iii)." ,''" Fe Fe +e"''" Cl+e Cl" T''"An electron is transferred from the iron (ii) ion to the chlorine atom."  /"Which of the following are true of bromine?" y'"1 It is a reddish brown gas"'"2 It condenses to a red liquid"'"3 It is heavier than air"'"4 It is insoluble in water"  b4500,"1 only","1 and 2 only","2 and 3 only","1, 2 and 3 only","all of them","d",4540 _"Bromine is a reddish brown gas which condenses to a red liquid."''"It is heavier than air."  "A colourless gas"''"1 forms white fumes with ammonia"'"2 turns wet blue litmus paper red but does not bleach it"'"3 forms a white precipitate with silver nitrate solution which dissolves readily in ammonium hydroxide" '"The gas is:"  i5000,"chlorine","hydrogen chloride","bromine","hydrogen bromide","hydrogen iodide","b",5040 "HCl(g)+NH(g) NHCl(s)" F''"HCl(aq) + AgNO(aq) AgCl(s) + HNO(aq)"  |Q"Which of the following methods can be used for the preparation of chlorides?" '"1 Heat metal in dry hydrogen chloride"'"2 Heat metal in dry chlorine"'"3 Neutralize alkali with dilute hydrochloric acid"'"4 Carbonate and dilute hydrochloric acid"  c5500|,"1 only","1 and 2 only","2 and 3 only","1, 2, and 3 only","all of them","e",5540 /"Examples:"''"Mg(s)+2HCl(g) MgCl(s)+H(g)" '"2Al(s)+3Cl(g) 2AlCl(s)" E'"NaOH(aq)+HCl(aq) NaCl(aq)+HO(l)" E'"CaCO(s)+2HCl(aq) CaCl(aq)+CO(g)+HO(l)" X'"Insoluble chlorides can be precipitated by double decomposition, e.g." E'"AgNO(aq)+HCl(aq) AgCl(s)+HNO(aq)"  p."Which of the following are true of metals?" z'"1 They are shiny"'"2 They conduct electricity"'"3 They can be bent and stretched"'"4 They conduct heat"'"5 They usually have high melting points"'"6 They are strong"  t6000p,"1, 2 and 3 only","1, 3 and 6 only","2, 4 and 5 only","3, 4, 5 and 6 only","all of them","e",6040 +"The following are true of metals:" '"They are shiny."''"They conduct electricity."''"They can be bent and stretched."''"They conduct heat."''"They usually have high melting points."''"They are strong."  d\"Which of the following metals are extracted by the reduction of their oxides by coke?" n6'"1 Sodium"'"2 Zinc"'"3 Iron"'"4 Aluminium"'"5 Lead" x q6500d,"1, 2 and 4 only","3, 4 and 5 only","2, 3 and 5 only","1, 3 and 4 only","all of them","c",6540 Y"Zinc, iron and lead are extracted by the reduction of their oxides by coke." X'"Zinc blende (ZnS) and calamine (ZnCO) concentrated and roastedto form oxide, then" '"ZnO(s)+C(s) Zn(s)+CO(g)" *''"Also,"''"ZnO(s)+CO(g) Zn(s)+CO(g)"  500: ("Iron ore roasted to form oxide, then" $''"FeO(s)+3C(s) 2Fe(s)+3CO(g)" /''"Also,"''"FeO(s)+3CO(g) 2Fe(s)+3CO(g)" A''"Galena (PbS) concentrated and roasted to form oxide, then" ''"PbO(s)+C(s) Pb(l)+CO(g)" , Xx"Which of the following metals are extracted by the electrolysis of the molten chloride or oxide?" lG'"1 Sodium"'"2 Zinc"'"3 Calcium"'"4 Iron"'"5 Magnesium"'"6 Aluminium" q vw7000X,"1, 2 and 4 only","3, 5 and 6 only","2, 3, 4 and 6 only","1, 3, 5 and 6 only","all of them","d",7040 v"Sodium, calcium, magnesium and aluminium are extracted by the electrolysis of the molten chloride or oxide." r'"At the cathodes:"''" Na + e Na(l)"'" Ca + 2e Ca(s)"'" Mg + 2e Mg(l)"'" Al + 3e Al(l)" Z'"At the anodes:"''" Cl Cl + e"'" 2Cl Cl(g)"''" O O + 2e"'" 2O O(g)"  L8"Which of the following reactionswill NOT take place?" V `7500L,"Fe+Cu Cu(s)+Fe","Zn+Pb Pb(s)+Zn","Cu+Mg Mg(s)+Cu","Zn+Sn Sn(s)+Zn","Mg+Pb Pb(s)+Mg","c",7530j j"Any metal will displace the ionsof any other metal below it in the electrochemical series:"''"K, Na, Ca, Mg, Zn, Fe, Sn,"''"Pb, H, Cu, Ag." t3''"Each metal will displace those to the right."  @w"In the mercury cell for the extraction of sodium hydroxide, the ion discharged at the mercury cathode is:" J TP8000@,"sodium","hydrogen","hydroxide","chlorine","mercury","a",8030^ ^(12 ;"Hg"'" Na + e Na/Hg" hN'"With a mercury cathode, sodium is discharged in preference to hydrogen." r'"It forms an amalgam and passes to a second chamber containing graphite blocks. It decomposes on contact with these blocks." |F''"2Na/Hg(l)+2HO(l) 2NaOH(aq)+H(g)+2Hg(l)" Q''"The mercury is re-cycled and thesodium hydroxide solution is evaporated."  !4U"In which of the following reactions is the oxide of the metal NOT formed?" !>'"Action of heat on:" !H !Rx85004!,"copper carbonate","potassium nitrate","magnesium hydroxide","zinc nitrate","lead carbonate","b",8540\! !\L"The nitrates of sodium and potassium form nitrites on heating." !f'"2KNO(s) 2KNO(s)+O(g)" !p'"CuCO(s) CuO(s)+CO(g)" !z'"Mg(OH)(s) MgO(s)+HO(g)" !E'"2Zn(NO)(s) 2ZnO(s)+4NO(g)+O(g)" !'"PbCO(s) PbO(s)+CO(g)" ! xyzqabcdeH Section 8Ltestst vm fF CELTIC REVISION SOFTWAREvUDGC  K\y 8x8͞ x<͞  ~%~%|Xg~ w$<<8$((!{\6X#6V+^!w#~!VUw+!~#~+w#w< $<0H xp0p0Px x@xx$$ffLRRRLx|LRDH^NP\RL0H x< << 8$>@ < <<$< 8$<$$<   $$ff(<x|88 0H x< <<DHW)Bntests < ;<8x=7:y=6:z=0:y:y:z::1400x g64999:x=7:y=6:z=0:y:y:z::5,3;"Please leave tape running" "UDGC"65000,536 Q:70F:f$=" STOP THE TAPE ":v=10 :m=8:f=980:910  500 ( 5 FC2;"CHEMISTRY EXAMINATION PRACTICE";11 ;"AND TESTS": d n%2;"Q";q;0,12 ;h$  ques n=65195 n=1230  a;"a) ";a$ b;"b) ";b$ c;"c) ";c$ d;"d) ";d$ e;"e) ";e$  a=y b=y c=y d=y "e=y ' ,""300, 6=""3106 @=32 J?20,0;x;"Undefined key?";y;" please try again " T 300, ^""350^ h=""360h r=32 Ŧ=13 | 350^ *q=q+1:ques=2800 +k*200 a$,b$,c$,d$,e$  n=f17 /n,0;" " n  B21,0;" ";x;" Press any key to continue ";y;" " ""510 =""520  &!a=0:b=0:c=0 0d=0:e=0 : X618,0;" " b619,0;" " l n=0100d:n   600X 18,0;2;f$  )n=65196:n=165136p  )n=65196:n=065136p    i$ *k$="":f=i$ 4f=0800  > n=1f Hi$(n)=32 860\ R k$=k$+i$(n) \n f  f=990  v,m;""; 23729\,v n=1̱f$ f 23728\,m:65000 m=m+1:n  1;f$(n);: %1;5;1;f$(n);: 2;f$(n);: 5;f$(n);:  250  100d  018,20;2;"[";s(k);" marks]" ?21,0;x;"Please select your answer";y;" "  800  ~0k$="a"k$="b"k$="c"k$="d"k$="e"1175 ?20,0;x;"Undefined Key ?";y;" Please try again"  1050 k$w$(k)1280 w$(k)="a"a=5 w$(k)="b"b=5 w$(k)="c"c=5 w$(k)="d"d=5 w$(k)="e"e=5 mark=mark+s(k) noans=11260 cor=1:100d 018,20;2;"[";s(k);" marks]" =f$="CORRECT":f=995:v=0:m=25:910 B21,0;"Use ";x;"SPACE";y;" for the next question "  300, =32 noans=11260 F20,0;x;"Wrong-Correct answer is ";w$(k);" ";:" "  1260 d)2;0,3;"part(i)":: ncor=11395s p q=q-1 s?2;0,0;"Q";q;0,3;"part(ii)": u x7:q=0:mark=0:noans=0::250  h$,l$,qty  70F :f$=h$:v=3:m=((32 -f$)/2):900 -:::7;2;"Programme Content"  2010 !f$=" CELTIC REVISION SOFTWARE" v=18:m=3  900  21004 k=1qty -750:65195,0:cor=0  400  1000 k  noans=19970& 7:4;0,7;"You obtained ";mark;" %" 9f$="End of "+h$:v=3:m=((32 -f$)/2) " 900 ,U10 ,0;x;"Press n then ENTER";y;" to auto-load programme ";2;l$ 6:::x;"Press r then ENTER";y;" to rerun thisprogramme" @M.G. Fincher E1::x;"Press b then ENTER";y;" to goto BASIC" J 800  T"k$="n"k$="r"k$="b"1700 ^721,0;x;"Undefined key please re-select" h 1610J k$="n"1800 k$="r"5 L:5,2;"RETURNING TO BASIC DESTROYS";8;"THIS PROGRAMME" E::x;"Press y to return to BASIC"''"Press any other key to abort" 0:i$= i$="y"i$="Y"  1550 /:f$=" START THE TAPE ":v=5:m=8  900 6:::2;" At the beginning of SIDE ONE.":: l$ "Tests","directions",35# /8,4;"20 sample test questions": 4w$(35#,1) >n=135# Hw$(n) Rn \"c","a","a","e","a","b","a","b","c","b","d","c","d","d","e","a","b","d","d","a","d","b","e","a","c","a","d","e","e","e","b","e","a","d","b" f s(35#) pn=135# zs(n) n 2,3,3,2,2,3,3,2,5,3,2,5,2,3,5,2,3,2,3,3,2,2,3,5,2,3,2,3,3,2,2,3,2,3,5  500: x;"INSTRUCTIONS" :"To use this test as a mock examination the answers are displayed at the end of the testotherwise the answers appear after each question." j:"Do you wish to use this test as a mock examination? "'';x;"Press y for yes"''"Any other key for no." ""2240 =""2250 ="y"Ŧ="Y"2300   .0,8;4;"MOCK EXAMINATION" ,5,6;x;"Answer all questions" 210 ,3;x;"Time allowed - 1hr 30min." $noans=1 500: 1380d $"The atomicity of hydrogen H is:"  "0","1","2","3","4" 1390n 770:"Avogadro's number = 6.02 x 10 and the relative atomic mass of iron = 56."''"The number of atoms in 2.8g ironis:"  L"3.01 x 10","12.04 x 10","3.01 x 10","9.30 x 10","5.0 x 10" 750 H 1380d R^"A hydrocarbon Y consists of 7.7%hydrogen and 92% carbon."''"The empirical formula of Y is:" \ f"CH","CH","CH","CH","CH"  1390n L"The relative molecular mass of Yis 78."''"The molecular formula of Y is:" $ .#"CH","CH","CH","CH","CH"  1380d h"When solid iodine is heated it changes to a vapour without first becoming a liquid."''"This is:"  N"sublimation","catalytic cracking","vaporisation","hydrolysis","dehydration"  1390n N"In the reaction"''" HS(g)+Cl(g) 2HCl(g)+S(s)"''"hydrogen sulphide is:"  "dehydrated","oxidised to sulphur by losing hydrogen","reduced to sulphur","behaving as a weak acid forming a chloride","a catalyst" h 1380d rp"In the reaction"''"2NaOH(aq)+HS(g) NaS(aq)+2HO(l)"''"hydrogen sulphide is:" | T"a dibasic acid","a reducing agent","an oxidising agent","dehydrated","a catalyst" 0 1390n :]"When ammonia is prepared in the laboratory, it is not collected over water because it is:" D NW"lighter than air","very soluble in water","poisonous","colourless","an alkaline gas" -"Which are true of the following reaction?" ""2FeCl(aq)+Cl(g) 2FeCl(aq)"  "1 Iron ions are oxidised"'"2 Iron ions are reduced"'"3 Chlorine ions are reduced"'"4 Chlorine ions are oxidised"'"5 There is a change of valency"'"6 Chlorine is acting as an oxidising agent"'"7 Chlorine is acting as a reducing agent"   b"3, 5 and 7 only","1, 3 and 6 only","1, 3, 5, and 6 only","2, 4 and 7 only","2, 4, 5 and 7 only"  1380d Z"The mass of potassium hydroxide in 500cm of 2M KOH is:"''14;"[H=1, O=16, K=39]"  ""112g","56g","28g","5.6g","2.8g" c1390n:"The mass of 5.6dm sulphur dioxide at s.t.p. is:"''16;" [O=16, S=32]"   "64g","32g","25.6g","16g","8g" Pc"The volume of 2M sulphuric acid needed to neutralize 28cm of 1.5M sodium hydroxide soln. is:" Z d+"28cm","21cm","10.5cm","42cm","25cm"  1380d "6"When chlorine reacts with methane, it forms:" ,5'"1 CHCl"'"2 CHCl"'"3 CHCl"'"4 CCl"'"5 CHCl" 6 @T"1 and 2 only","2 and 3 only","2, 4 and 5 only","1, 2, 3 and 4 only","all of them"  1390n `"When glacial ethanoic acid is boiled under reflux and chlorineis passed into it, it forms:" <'"1 CH COOCl"'"2 CHCl COOH"'"3 CHCl COOH"'"4 CCl COOH"  H"1 only","1 and 2 only","3 and 4 only","2, 3 and 4 only","all of them" 0"Which of the following are true of nitrogen?" '"1 It is neutral"'"2 It is inert"'"3 It reacts with magnesium to form magnesium nitride"'"4 It reacts with boron to form boron nitride"'"5 It reacts with calcium dicarbide to form calcium cyanamide"  Z"1 and 2 only","2, 3, 4 and 5 only","1, 2, 3 and 4 only","1, 2 and 3 only","all of them" p 1380d z"To make sulphuric acid, sulphur trioxide is not passed into water directly but it is passed into 98% concentrated sulphuric acid because:"  "it reacts with water vapour to form an acid mist","it does not react directly with water","it forms oleum with sulphuric acid","it would form a very weak acid","the temperature rises too quickly" 8 1390n Bb"When hot, concentrated sulphuricacid is added to copper turningsthe following reaction occurs:" Lf''"Cu(s)+2HSO(aq) CuSO(aq)+2HO(l)+SO(g)"''"Sulphuric acid is acting as:" V `V"an acid","an oxidising agent","a catalyst","a reducing agent","a dehydrating agent"  1380d  5"Which of the following refer to white phosphorus?" '"1 Translucent solid"'"2 Insoluble in carbon disulphide"'"3 Very poisonous"'"4 Forms phosphine with sodium hydroxide"'"5 Catches fire in moist air"'"6 Not oxidised in air"  (["2 and 6 only","1 and 3 only","1, 2 and 3 only","1, 3, 4 and 5 only","1, 2, 4 and 6 only"  1390n 3"Which of the following refer to red phosphorus?" '"1 Insoluble in carbon disulphide"'"2 Not oxidized at room temperature"'"3 Forms phosphine with sodium hydroxide"'"4 Catches fire in moist air at room temperature"'"5 Non-poisonous"  N"2 and 3 only","3 and 4 only","1 and 3 only","1, 2 and 5 only","all of them"  1380d z"In the reaction"''"PbO(s)+HO(aq) PbO(s)+HO(l)+O(g)"''"hydrogen peroxide is acting as:"  X"a reducing agent","a catalyst","a dehydrating agent","an oxidising agent","a solvent" X 1390n bC"On warming lead (iv) oxide with concentrated hydrochloric acid:" lF''"PbO(s)+4HCl(aq) PbCl(s)+2HO(l)+Cl(g)" v"''"Lead(iv) oxide is acting as:"  W"a reducing agent","a catalyst","a dehydrating agent","an oxidising agent","a solute"  1380d *"A monovalent element forms electrovalent compounds containing the ion M and forms a basic oxide and hydroxide. It is a strong reducing agent."''"It belongs in the Periodic Table in:" 4 >8"Group O","Group I","Group II","Group III","Group VII"  1390n "A monovalent element forms covalent compounds and also forms electrovalent compounds containing the ion M. It forms more than one acidic oxide."''"It belongs in the Periodic Table in:"  8"Group O","Group I","Group II","Group III","Group VII" "16.0g of a mixture of anhydrous sodium carbonate and sodium chloride are dissolved in distilled water and the solutionmade up to 250cm." '"25cm of this solution are neutralized by 24cm of M HCl. The percentage of sodium carbonate in the mixture is:"  *"79.5%","39.75%","30.8%","20.5%","15.4%" x 1380d L"Hydrogen sulphide reacts with sodium hydroxide solution to form:" '"1 sodium sulphide"'"2 sodium sulphite"'"3 sodium sulphate"'"4 sodium hydrogensulphide"'"5 sodium hydrogensulphite"'"6 sodium hydrogensulphate"  R"2 and 5 only","3 and 6 only","1 and 4 only","1, 2 and 3 only","4, 5 and 6 only" @ 1390n JL"Sulphur dioxide reacts with sodium hydroxide solution to form:" T'"1 sodium sulphide"'"2 sodium sulphite"'"3 sodium sulphate"'"4 sodium hydrogensulphide"'"5 sodium hydrogensulphite"'"6 sodium hydrogensulphate" Y ^R"2 and 5 only","3 and 6 only","1 and 4 only","1, 2 and 3 only","4, 5 and 6 only"  1380d "Aluminium oxide is:"  &1"basic","acidic","mixed","amphoteric","neutral" 1390n k"To extract aluminium, purified aluminium oxide is dissolved in cryolite because pure aluminium oxide:" '"1 has a very high melting point"'"2 is a poor conductor of electricity"'"3 dissolves to form a solution that is a good conductor of electricity"  9"1 only","2 only","3 only","none of them","all of them" ! 1380d !["Which of the following reactionsoccur in the blast furnace in the extraction of iron?" !'"1 C(s)+O(g)CO(g)"'"2 CO(g)+C(s)2CO(g)"'"3 FeO(s)+3CO(g)2Fe(l)+3CO(g)"'"4 CaCO(s)CaO(s)+CO(g)"'"5 CaO(s)+SiO(s)CaSiO(l)" ! !N"1 only","1 and 2 only","1, 2 and 3 only","1, 2, 3 and 4 only","all of them" "` 1390n "j"Iron has a valency of:" "o "t!"1","2","3","1 and 2","2 and 3" #( 1380d #2["When iron and steam are heated in a closed container, a dynamicequilibrium is reached:" #@ < <<$< 8$<$$<   $$ff(<x|88 0H x< <<DHW)B