ZXTape! 2 3Chemistry (Penguin Study Software) - Tape 1: Side BPenguin Study SoftwareProgress Software1985English Educational19.95 ROM LoaderOriginalTZXed by Andrew Barker0Tutorial 2: Carbon and NitrogenCHEM 2 50000P:5:5:5::"":4:4:"":64949:64950:1:5:5:23659k\,0:22,0;31;" ";'31;" " 0:1:5:a=23306 [:a,142:a+1,82R:a+2,1:a+3,2:a+4,8:a=a+4:v$="CHEMISTRY":v=19 :a+v,v$(v):v:a+v,255:65090B a=23306 [:a,188:a+1,112p:a+2,1:a+3,2:a+4,8:a=a+4:v$="2":v=11:a+v,v$(v):v:a+v,255:65090B !5:19,0:"" pen @ ~>>1?p8 <|x<3p8|x>a8p>p8 y<~<8p p8<|8pAp8 =??8p p8>x8pp8 78px p8/x8p yp8 ó8p< p8'8p8x8 ?>?dz8pA p8#x|3p8<0|p??|8?|?p881>8Æ|<<>8~?|?8863x|pp<|qs>p8>?8~?|p8p>p<~?pp@|cq>8>8|??|pp>p~ppp?ǀ8>8|??|pp p~pppx?ǀ8>?< |?|ppgp~8ppp<?ǀ?8~?p>|?|pp@pxp<~p8>??8~??|?|ppxx8Àpx~??>~|>??|>?><{??>|`x@?|`? 88 88 88 888 88888 88888 88888 88888 88888 88888 88888 b px r '#$#$' D@' D@???????? $???????? $? '?! ?BB|~@! ?BB|~@? >??????????????B<|><@??BBDB@ >B<|><@BBDB@  BBBB@<B~  ?????????????BBBB@?<B~!! BBBB@!! BBBB@<B ???x8<888888D88?D DD D@@@DT DD DD x888DT< x???x D< @DTD @B@ 8 2:\!}./x/( g}<0_-8K./x/(-8![~#"[o<&)))K6\ >2[: [2 [: [2[> 2[~#"[2[:[= 2:[= :[G: [O: [ 2 [*[E2[: [G: [2 [*[b2[: [G: [2[: [O:[<2[ :[<2[ :[r@ :\G:\G:[o:[g>Xg:\w:[G@gxgxo:[Go!xO F![F(//>x8x|B|BB|>@ (DD<| @|BB|@@\,0:23659k\,2:0 ,stkend=23653e\+256*23654f\ xstart=(*256) 8"fex4cps"23552\-xstart,stkend-23500[+xstart r(n)=1+(*n) 65005:65011:dbk="65011":trig=0:ebk="65006":bp="65090":ky="65033":"5":ڰ"5"::ç:v$("6","28"):"5006":v=ç̰"3":w=ç̰"6":v$(w):w:"5e3":v TPenguin Books Ltd., Harmondsworth, Middlesex, England. progress software, 1984. pc2="6":key=ky 850R:nhv=ç:score=ç:nc2=ç:nh=ç:nc=ç:nq=ç:lst1="1000":nqt1="10":lst2="2000":nqt2="11":nqt=nqt2+nqt1::r$="" M:850R::"5005":v=ç̰"5":w=ç̰"6":v$(w):w:"5e3":v:"200" Cڰ"5":"5"::ç,"10";"PLEASE NOTE";ç,ç;"Special randomizing algorithms"'"are used in this program :-"''"* To select the order in which"'" questions are asked"'"* To change the numerical values"'" used in the questions"'"* To alter which variable is"'" used as the ""unknown"""'"* To select different ""correct"" "'" and ""wrong"" answers"''"Thus, if any question is"'"repeated, either deliberately"'"by the user or by the program,"'"then it will very probably be"'"""different"" in some way."''"So, the number of questions"'"available is always in effect"'"endless." "200" "27":"80" "5":ڰ"5":pc1="7":pc2="6":pc3="5":bc="7"::"5","12";"COLOURS";"7",ç;"If you wish to change the BORDER"'"or PAPERs from the colours set"'"by the program then please press"'"y otherwise press n." #key=ky:keyɰ"2"keyɰ"8""30"  key="8" "(:h("5"):"35":v=ç̰"4":v$(v):v #'"Text","Highlights","Messages","Text" $ç,"8";"CHOOSE COLOURS" %"5","150":"235",ç:ç,-"140":-"235",ç:ç,"140":ç,-"24":"235",ç:"140","150":ç,-"140":"180","150":ç,-"140":"4","7";"ITEM";"4","18";"KEY";"4","23";"COLOUR" &"7",ç;"PAPER for:" ' v=ç̰"4" (0v<"4"ç;"9"+(v-1)*"2","4";v$(v) )9v="4""15",ç;ç;"BORDER for:";"17","4";v$(v) * """42" , ="""44" ."a$=:a$>"55"ůa$<"48""42" 0Oh(v)=a$:"910":v<"4"ç;"9"+"2"*(v-1),"19";h(v);"23";t$:v 1%ç;"17","19";h(v);"23";t$:v 2 """50" 3="""200" 4U"150":pc1=h(1):pc2=h(2):pc3=h(3):bc=h(4):ic=9 : P imax="9" Q l(imax) Y ts=t() Z y$("7","28"):nqç"210" [&r$="r"k=l(ç):r$="":i=ç:"98" \ k=r(nqt) ]i=çimax:k=l(i)"92" ^i _.i=imax̰"2"-ç:l(i)=l(i-ç):i:l(ç)=k `ph="11":pa="15":i=ç aAl=lst1+(k-1)*"25":k>nqt1l=lst2+(k-1-nqt1)*"25" bnq=nq+ç:"220":"50":l d"920" e"""101" f="""102" g2a$=:a$"a"a$"b"a$"c"a$"d"a$"h""101" ha$=b$i=ç"101" i"i=i+ç:i=1a$"h"b$=a$ jYa$="h"i=çnh=nh+ç:pc3;ٰ"9";ph,ç;"Here is some HELP.";"32":a$="a":l+"17" ka$="h"i="2"nh=nh+ç:i="21"pa-ç:pc1;ٰ"9";i,ç;"31";" ":i:pc3;ٰ"9";pa,ç;"Here is further HELP.";"32":l+"20" la$=c$i=çnhv=ç:score=score+ç:pa+ç,ç;pc3;ٰ"9";"(";a$;")":pa+ç,"3";pc3;ٰ"9";" is the CORRECT answer.";"32":nc=nc+ç:"90" na$=c$i="2"nhv=ç:nc2=nc2+ç:v="21"pa-ç:v,ç;pc1;"31";" ":v:pa+ç,ç;pc3;ٰ"9";"(";a$;")":pa+ç,"3";pc3;ٰ"9";" is the CORRECT answer.";"32":b$=""score=score+ç:"90" o.a$=c$i="2"b$""score=score+".5":"90" pa$c$i=çnhv=ç:score=score-"1/3":pc3;ٰ"9";ph,ç;"(";a$;")":ph,"3";pc3;ٰ"9";" is WRONG. Here is a HINT.";"32":l+"17" ra$c$i="2"nhv=ç:v="21"pa-ç:v,ç;pc1;"31";" ":v:pa,ç;pc3;ٰ"9";;"(";a$;")":pa,"3";pc3;ٰ"9";" is WRONG. Here's the ANSWER.":b$=""score=score-"1/3":l+"20" s1a$c$i="2"b$""score=score-".25":l+"20" utf=t():s=(tf-ts):m=1+(s/60<+.5):sc=(".5"+score*"100"/(nq-ç)*(1-nh/"2"/(nq-ç))):sc<çsc=ç vGf$=sc:pc3:pc3:ٰ"9"::5004:vl=ç:sc=çnhv=çf$="VOID" wN"7","2";"No. of Questions";"7","26";nq-ç;"9","2";"No. correct 1st time";"9","26";nc;"11","2";"No. correct 2nd time";"11","26";nc2;"13","2";"No. of ""Helps"" given";"13","26";nh;"15","2";"Time taken ( mins.)";"15","26";m;"17","2";"SCORE ( per cent )";"17","26";f$;"17",ç;ç;pc2;"30";" " x"16",ç;pc2;ٰ"9";ç;"30";" ";"18",ç;pc2;ٰ"9";"30";ç;" ":"6","130":"245",ç:ç,-"109":-"245",ç:ç,"109":"180",ç:ç,-"109":"3","133":"251",ç:ç,-"115":-"251",ç:ç,"115" y v=çvl zw=ç̰"6":v$(w):w { "5000":v |q#1;ç,ç;pc2;ٰ"9";ç;"*";ç;" For hardcopy press c";"32";" or any other key to restart.";"32" ~Jkey=ky:keyɰ"15"nhv=ç:score=ç:nc2=ç:nh=ç:nc=ç:nq=ç:"25" o$("10"):#1;ç,ç;pc2;ٰ"9";ç;"*";ç;"Input any 10 single characters";32 ;" as identification on print-out." i=ç̰"10" """129" ="""130" o$(i)= i::୰"11";"TUTORIAL 2"';"1";"CARBON & NITROGEN CHEMISTRY"''':୰"11";o$;''':o$="a>=o^(F!$"װ"2",ç:ebk:"100":"200":dbk "124" N#1;ç,ç;ڰ"6";ç;ç;"*";ç;" Press any key to continue.";"32" key=ky : i#1;ç,ç;pc3;ٰ"9";ç;"*";ç;"Press r to repeat, f to finish,";"9";"or n for next.";"32" key=ky key="13"r$="r":"91" key="14"nq=nq+ç:"117" key="8""92" "212" b$="" ""221 pc3:pc3:ٰ"9"::"5003" v=ç̰"2" w=ç̰"6":v$(w):w Ov="2"q=ç̰"4":v$("6")(q)=" "aaa=q-"2":v$(ç)="123-10*aaa":"227" v="2"q "5e3":v "50":bc:pc1::  n1=r("3") nx=n1:j="2":n="3":"598" n2=m(ç):n3=m("2") n3>n2"410" n4=n2:n2=n3:n3=n4 "If";pc2;" ";w$(n2);" ";:"= ";var1;" and ";pc2;" ";w$(n3);" ";:"= ";var2;" ,"'"which value of";pc2;" ";w$(n1);" ";:"is correct ?"'': "700"  n1=r("4") c$="abcd"(n1)  d("4")  d(n1)=ac j="3":n="4":nx=n1  598V -n2=m(1):n3=m(2):n4=m(3) j="3":n="7":nx=ç "598" ?d(n2)=a(m(1)):d(n3)=a(m(2)):d(n4)=a(m(3)) "660"   Xm(j) Z k=çj \m(k)=1+(*n) ^h=(k-ç)ç-ç `m(k)=m(h)"604" bh dm(k)=nx"604" fk: %n=ç̰"4":trig=1669 )d(n)>"100.0"d(n)=d(n)+"0.5":"665" )d(n)>"10.0"d(n)=d(n)+"0.05":"665" )d(n)>"0.1"d(n)=d(n)+"0.005":"665" d(n)=d(n)+"0.0005" ,(d(n))Ȱ"4"d(n)=(d(n))(1̰"4") Gn:"(a)";d(ç);" ";"(b)";d("2");" ";"(c)";d("3");" ";"(d)";d("4")   a("7") a(1)=1/ac a("2")=ac*"10" a("3")=ac/"10" a("4")=ac*ac a("5")=ac/"2" a("6")=ac/"3"  a("7")=ac ac1/3acɻ3ac9 ac1acɻ10 ac(10 )/10 acɻ2ac10 ac1/10 ac1/2ac4ac1/100dac100d 1n=ç̰"7":a(n)="1"+n:n:a(3)="2.5": n1=1+(*4) c$="abcd"(n1) x$("4","28"):x$(n1)=z$ j="3":n="4":nx=n1:"598" #n2=m(ç):n3=m("2"):n4=m("3") j="3":n="7":nx=ç:"598" ;x$(n2)=y$(m(ç)):x$(n3)=y$(m("2")):x$(n4)=y$(m("3")) >"(a)";x$(ç)'"(b)";x$("2")'"(c)";x$("3")'"(d)";x$("4"):  <n1=1:n2=2:<.5n1=2:n2=1 8z$=o$(n1,1+(4*)):h=1+(4*) -g=14:g+h>4h=h-4 x$(g)=o$(n2,g+h):g n3=1+(4*)  x$(n3)=z$ c$="abcd"(n3)   &m(xP33,yP)=(x+y+(x-y))/"2" !;u()=("65536"*"23674"+"256"*"23673"+"23672")/"50" "t()=m(u(),u()) #r(n)="1"+(*n) R'i=07:row:"a"+i,row:i Si0,0,0,00011000,00100100$,00000100,00011000,00111100< T'i=07:row:"s"+i,row:i Ui0,0,0,00111100<,00000100,00001000,00100100$,00011000 V'i=07:row:"d"+i,row:i Wi0,0,0,00001000,00011000,00101000(,01111100|,00001000 X'i=07:row:"f"+i,row:i Yi0,0,0,00111100<,00100000 ,001110008,00000100,001110008 Z'i=07:row:"g"+i,row:i [i0,0,0,00011000,00100000 ,001110008,00100100$,00011000 \'i=07:row:"h"+i,row:i ]i00011000,00100100$,00000100,00011000,00111100<,0,0,0 ^'i=07:row:"j"+i,row:i _i00111100<,00000100,00001000,00100100$,00011000,0,0,0 d'i=07:row:"p"+i,row:i eY0,0,0,00000100,01111110~,00000100,0,0 f'i=07:row:"o"+i,row:i ga00011000,00100100$,00100100$,00011000,0,0,0,0 h'i=07:row:"i"+i,row:i ii0,0,0,00010000,001100000,00010000,00010000,001110008 j'i=07:row:"q"+i,row:i ki00100000 ,00100000 ,11111000,00100000 ,00100000 ,0,0,0 l'i=07:row:"e"+i,row:i mI0,0,11111000,0,0,0,0,0 n'i=07:row:"r"+i,row:i o00000110,00000100,00000100,00000100,00000100,00010100,00001100 ,00000100 p'i=07:row:"t"+i,row:i qY0,0,0,0,0,001110008,00100000 ,00100000 r'i=07:row:"u"+i,row:i sY0,0,01111110~,0,01111110~,0,01111110~,0   i=ç::l: Nr=r1r2:l$=" "(c2-c1):r,c1;ڰ"7";l$: r: h(v)=çt$="blue" h(v)="2"t$="red" h(v)="3"t$="magenta" h(v)="4"t$="green" h(v)="5"t$="cyan" h(v)="6"t$="yellow" h(v)="7"t$="white" h(v)=çt$="black"  e$="a, b, c, or d" b$="a"e$="b, c, or d" b$="b"e$="a, c, or d" b$="c"e$="a, b, or d" b$="d"e$="a, b, or c" S#1;pc3;ٰ"9";ç,ç;"Select by keying ";e$;"7";"or h for HELP.";"32":  g"Carbon dioxide is prepared by"'"adding dilute hydrochloric acid"'"to which one of the following ?"'' z$="calcium carbonate" "y$(7,28):1008 n=17:y$(n):n k"carbon","calcium sulphate","limewater","iron(II)sulphide","calcium chloride","aluminium","calcium oxide" 'k$=" CaCl(aq)+HO(l)+CO(g)." "720:ph=9 :100d P"The right hand side of the"'"equation representing the"'"preparation is :"'k$  100d ["The complete equation is :"'"CaCO(s)+2HCl(aq)"'k$''"So the correct answer is (";c$;")."  90Z i"Carbon monoxide may be prepared"'"by adding concentrated sulphuric"'"acid to which of the following ?" _z$="oxalic acid":k$="(COOH)-HOCO+CO.":<.5z$="formic acid":k$="H.COOH-HOCO." "y$(7,28):1033  n=17:y$(n):n  ]"sugar","nitric acid","sodium nitrate","sodium chloride","copper","ethanol","ethanoic acid"  "720:ph=8:100d B"The concentrated sulphuric acid"'"acts as a dehydrating agent." +pa=11 :z$(1)="f"pa=12  100d "Concentrated sulphuric acid is"'"added to ";z$;".":z$(1)="o"13 ,20;" crystals"'"and the mixture is heated." k"The sulphuric acid removes the"'"elements of water from the"'z$;" and carbon monoxide"'"is evolved :";k$ Sz$(1)="o""The carbon dioxide is absorbed"'"in sodium hydroxide solution."  90Z m"Complete correctly the following"'"statement."'"The characteristic test for"'"carbon dioxide is that it"'' z$="turns limewater milky." "y$(7,28):1058"  n=17:y$(n):n ""burns with a yellow flame.","relights a glowing splint.","burns with a ""pop"" in air.","is colourless.","is heavier than air.","is not soluble in water.","burns with a blue flame." $0720:ph=10 :pa=14:100d +qx$(a$-96`)(1)="i""The test must prove positive for"'"carbon dioxide and no other gas.":100d ,H"Carbon dioxide extinguishes a"'"splint and will not burn.":100d ."If carbon dioxide is bubbled"'"through limewater, the limewater"'"turns milky as a precipitate of"'"calcium carbonate is formed :"'"Ca(OH)(aq)+CO(g)"'15;"CaCO(s)+HO(l)." 1 90Z 3nn=1+(2*) 4`k$="is soluble in water ?":nn=2k$="does not give carbon dioxide on heating ?" 57"Which one of the following list"'"of carbonates ";k$ 6=z$="sodium carbonate":<.5z$="potassium carbonate" 8"y$(7,28):1084< :n=17:y$(n):n <"calcium carbonate","zinc carbonate","copper(II)carbonate","lead(II)carbonate","chromium(III)carbonate","magnesium carbonate","barium carbonate" >/720:ph=8:pa=13 :100d DB"The required carbonate is also"'"the only one in the list that" EEnn=1"does not give carbon dioxide on"'"heating.":100d F/nn=2"is soluble in water.":100d G"All carbonates are insoluble in"'"water, except those of sodium,"'"potassium and ammonium. All"'"carbonates give carbon dioxide"'"on heating except those of"'"sodium and potassium."'"The correct answer is (";c$;")." I 90Z LK"Complete correctly the following"'"statement."'"The gas carbon monoxide" NMz$="is odourless but poisonous.":<.5z$="burns with a blue flame." P"y$(7,28):1108T Rn=17:y$(n):n T"is soluble in water.","bleaches damp litmus paper.","turns limewater milky.","smells of rotten eggs.","has a sweet, sickly smell.","forms brown fumes in oxygen.","burns with a yellow flame." V"720:ph=8:100d ]w"Carbon monoxide combines with"'"oxygen to form carbon dioxide."'"All of these gases are"'"colourless and odourless." _pa=13 :100d `"The correct answer is (";c$;")."'"Carbon monoxide is colourless"'"and odourless. It burns with a"'"pale blue flame to form carbon"'"dioxide which turns limewater"'"milky. This is a test for it."'pc2;"Carbon monoxide is poisonous." c 90Z eC"Which one of the following list"'"is an allotrope of carbon ?"'' g)z$="diamond":<.5z$="graphite" i"y$(7,28):1133m kn=17:y$(n):n mN"glucose","starch","carbon dioxide","limewater","methane","coal","polythene" o"720:ph=9 :100d v~"Allotropy is the occurrence of"'"an element in more than one"'"physical form. The different"'"forms are called allotropes." w 100d y"The two allotropes of carbon are"'"diamond and graphite."'"The carbon in charcoal consists"'"of minute crystals of graphite." { 90Z ~D"Which one of the following list"'"is a saturated hydrocarbon ?"'' nn=1+(4*) !n$(4,7):1154 n=14:n$(n):n '"methane","ethane","propane","butane" "y$(7,28):1157 n=17:y$(n):n J"ethene","ethyne","methanol","glucose","ethanol","polythene","limewater"  z$=n$(nn) "720:ph=8:100d c"Saturated hydrocarbons have the"'"highest possible proportion of"'"hydrogen in their molecules." pa=13 :100d "Saturated hydrocarbons have only"'"single bonds between carbon"'"atoms in their molecules. They"'"are called alkanes. The first"'"four in the series are methane,"'"ethane, propane and butane."'"So the correct answer is (";c$;")."  90Z j"Which one of the following list"'"of compounds may be represented"'"by the structural formula shown?"'' nn=1+(3*) !n$(3,7):1179 n=13:n$(n):n "propene","ethanol","ethyne" "y$(7,28):1182 n=17:y$(n):n K"ethane","ethanoic acid","propane","propanol","ethene","butane","propyne"  z$=n$(nn)  720 nn=14,20;"H H H";5,20;"| | /";6,18;"H-C-C=C";7,20;"| \";8,20;"H H" nn=24,20;"H H";5,20;"| |";6,18;"H-C-C-O-H";7,20;"| |";8,20;"H H" )nn=36,18;"H-CC-H" ph=10 :100d "The name of a simple organic"'"compound depends on the number"'"of carbon atoms in the molecule,"'"the number of hydrogen atoms per"'"carbon atom and the presence of"'"any specific group." pa=17:100d nn=1"The double bond (C=C) means that"'"this hydrocarbon is an alkene."'"With three carbon atoms it is in"'"fact propene." nn=2"The presence of the -OH group"'"means that this compound is an"'"alcohol. With two carbon atoms"'"it is in fact ethanol." nn=3"The triple bond (CC) means that"'"this hydrocarbon is an alkyne."'"With two carbon atoms it is in"'"fact ethyne."  90Z `"Which one of the following list"'"of compounds is the main product"'"of the Solvay process ?" z$="sodium carbonate" "y$(7,28):1208 n=17:y$(n):n "sodium hydrogencarbonate","ammonium chloride","ammonium hydrogencarbonate","calcium chloride","calcium oxide","potassium carbonate","carbon dioxide" "720:ph=7:100d b"The substances used in the"'"process include sodium chloride,"'"ammonia and calcium carbonate." pa=11 :100d ,"The Solvay process is used to"'"manufacture sodium carbonate."'"Carbon dioxide is passed into a"'"solution of sodium chloride"'"saturated with ammonia. Sodium"'"hydrogencarbonate precipitates"'"and is heated to give sodium"'"carbonate."'"Carbon dioxide is obtained by"'"heating calcium carbonate."  90Z nn=1+(2*) tnn=1z$="an oxidizing agent.":k$="carbon dioxide":l$="2Mg(s)+CO(g)2MgO(s)+C(s)":j$="a reducing agent." tnn=2z$="a reducing agent.":k$="carbon monoxide":l$="CuO(s)+CO(g)Cu(s)+CO(g)":j$="an oxidizing agent." l"Complete correctly the following"'"statement."'"In the reaction represented by"'l$'"the ";k$;" acts as"'' "y$(7,28):1230 n=17:y$(n):n ["an acid.","a base.","an indicator.","a catalyst.","an allotrope.","a fuel.","a solvent."  720 ,nm=1+(4*):nm=n11234 55+nm,0;"(";"abcd"(nm);")";j$;32  100d i"An oxidizing agent is itself"'"reduced during a reaction."'"Similarly a reducing agent is"'"oxidized." pa=17:100d bnn=1"The carbon dioxide acts as an"'"oxidizing agent. It is itself"'"reduced to carbon." jnn=2"The carbon monoxide acts as a"'"reducing agent. It is itself"'"oxidized to carbon dioxide."  90Z Љ"Which of the following pairs of"'"gases may be removed from air by"'"separately using heated copper"'"and sodium hydroxide solution ?" z$="oxygen; carbon dioxide" "y$(7,28):2008 n=17:y$(n):n ؛"neon; oxygen","carbon dioxide; argon","hydrogen; oxygen","argon; carbon monoxide","oxygen; methane","hydrogen; carbon dioxide","krypton; carbon dioxide" "720:ph=8:100d "After the two constituents are"'"removed from air then nitrogen,"'"about 1% argon and minute traces"'"of other noble gases remain." pa=13 :100d "The correct answer is (";c$;")."'"The carbon dioxide is absorbed"'"by sodium hydroxide solution :"'"CO(g)+2NaOH(aq)"'13 ;"NaCO(aq)+HO(l)."'"The oxygen is removed by passing"'"the air over heated copper :"'"O(g)+2Cu(s)2CuO(s)."  90Z Y"Which one of the following pairs"'"of compounds may be used to"'"prepare nitrogen ?"'' z$="NaNO ; NHCl" "y$(7,28):2033 n=17:y$(n):n u"NaNO ; Zn(NO)","NaNO ; NHCl","NaCl ; NHCl","NHNO ; NaCl","NHNO ; NaOH","Pb(NO) ; NHCl","NaNO ; NaCl" "720:ph=9 :100d b"Nitrogen could be obtained by"'"heating a solution of ammonium"'"nitrite if it were available." pa=13 :100d "Ammonium nitrite may be prepared"'"by mixing solutions of ammonium"'"chloride and sodium nitrite. On"'"heating nitrogen is evolved :"'"NHCl(aq)+NaNO(aq)"'8;"NaCl(aq)+N(g)+2HO(l)."'"So the correct answer is (";c$;")."  90Z "A colourless, odourless gas"'"extinguishes a lighted splint,"'"will not burn and does not turn"'"limewater milky. Which one of"'"the following could it be ?"'' z$="nitrogen" "y$(7,28):2058  n=17:y$(n):n  h"hydrogen","oxygen","carbon dioxide","carbon monoxide","nitrogen dioxide","dinitrogen oxide","ammonia"  720:100d ,"The gas is about 80% by volume"'"of air." pa=14:100d "The correct answer is (";c$;")."'"Nitrogen is fairly inert and a"'"gas is proved to be nitrogen by"'"eliminating other possibilities." D"Nitrogen will however react with"'"some metals to form nitrides."  90Z nm=1+(2*) 9j$="chloride2NHCl":<.5j$="sulphate(NH)SO" u"Which one of the following"'"compounds when heated with"'"ammonium ";j$(8);" will evolve"'"ammonia gas ?"'' nn=1+(3*) Hk$="calcium hydroxideCa(OH)":<.5k$="sodium hydroxide 2NaOH"  z$=k$(17) ""y$(7,28):2084$ #n=17:y$(n):n $"sodium nitrite","sodium nitrate","potassium chlorate","dilute sulphuric acid","dilute hydrochloric acid","dilute nitric acid","lead(II)nitrate" 'j$(1)="s"2090* ((l$="CaCl":k$(1)="s"l$="NaCl" ) 2091+ **l$="CaSO":k$(1)="s"l$="NaSO" +#720:ph=10 :100d ,F"Any ammonium salt heated with an"'"alkali will evolve ammonia gas." -pa=14:100d /"The correct answer is (";c$;")."'"The equation for the reaction"'"is :"'k$(18);"(s)+";j$(9 );"(s)"'4;"";l$;"(aq)+2HO(l)+2NH(g)." 2 90Z 4"A colourless gas when mixed with"'"the fumes from concentrated"'"hydrochloric acid forms dense"'"white fumes. Which one of the"'"following is the colourless gas?" 6z$="ammonia" 8"y$(7,28):2108< :n=17:y$(n):n <"sulphur dioxide","sulphur trioxide","carbon dioxide","nitrogen monoxide","dinitrogen oxide","carbon monoxide","hydrogen sulphide" >"720:ph=9 :100d E\"The white fumes are a solid"'"chloride which itself undergoes"'"sublimation when heated." Fpa=13 :100d H"The colourless gas is ammonia."'"Ammonium chloride is formed :"'"NH(g)+HCl(g)NHCl(s)."'"This is a test for ammonia,"'"which is lighter than air, very"'"soluble in water, alkaline and"'"has a pungent smell." J 90Z Ml"If ammonia is passed over heated"'"copper(II)oxide which one of the"'"following substances is formed ?"'' O<z$="copper":k$="nitrogen":<.5z$=k$:k$="copper" Q"y$(7,28):2131S Rn=17:y$(n):n S|"copper(II)nitride","copper(II)nitrate","nitrogen monoxide","dinitrogen oxide","nitrogen dioxide","nitric acid","hydrogen" U"720:ph=9 :100d ^,"In the reaction ";k$;" is also"'"formed." _pa=13 :100d a"Ammonia is a reducing agent."'"The copper(II)oxide is reduced"'"to copper and the ammonia is"'"oxidized to nitrogen :"'"2NH(g)+3CuO(s)"'10 ;"N(g)+3Cu(s)+3HO(g)."'"So the correct answer is (";c$;")." c 90Z fnn=1+(2*) h@"Which of the following is one"'"of the products when ammonia" i#nn=1"burns in oxygen ?"'' jAnn=2"and oxygen are passed over"'"red-hot platinum ?"'' k]z$="nitrogen":k$="2N":j$="nitrogen monoxide":nn=2z$=j$:j$="nitrogen":k$="4NO" m"y$(7,28):2159o nn=17:y$(n):n oq"nitrogen dioxide","dinitrogen oxide","hydrogen","nitric acid","hydrogen peroxide","ozone","ammonium hydroxide" q720:ph=8+nn s,nm=1+(4*):nm=n12163s t82+nn+nm,0;"(";"abcd"(nm);")";j$;32 u 100d w.l$="4NH(g)+"+(2*nn+1)+"O(g)" xL"The left hand side of the"'"equation representing the"'"reaction is :"'l$ y 100d zAnn=1"The ammonia is oxidized to"'"nitrogen and water :" {gnn=2"With the platinum catalyst the"'"ammonia is oxidized to nitrogen"'"monoxide and water :" |;l$;k$;"(g)+6HO(g)."'"So the correct answer is (";c$;")." } 90Z "Which one of the following list"'"of substances is produced when"'"potassium nitrate is heated ?":nn=1:z$="oxygen":j$="nitric acid" n<.52,28;"withconcentrated sulphuric acid ?":nn=2:z$="nitric acid":j$="oxygen" "y$(7,28):2180 ,n=17:y$(n):n:nn=1' g"nitrogen monoxide","nitrogen dioxide","dinitrogen oxide","nitrogen","potassium oxide","potassium",j$ "720:ph=9 :100d Onn=1"An odourless gas which relights"'"a glowing splint is produced." pnn=2"Brown fumes of nitrogen dioxide"'"may be observed due to partial"'"decomposition of the product." pa=13 :100d $"When potassium nitrate is heated" nn=1"oxygen is evolved and potassium"'"nitrite is formed :"'"2KNO(s)2KNO(s)+O(g)."''"So the correct answer is (";c$;")." nn=2"with concentrated sulphuric acid"'"nitric acid is prepared :"'"KNO(s)+HSO(l)"'14;"HNO(l)+KHSO(s)."'"The nitric acid may be distilled"'"off and collected."  90Z /nn=1+(3*):o$(4,20) 5nn=1k$="silver(I)":z$="silver":2204 ;nn=2k$="lead(II)":z$="lead(II)oxide":2205 ?nn=3k$="ammonium ":z$="dinitrogen oxide":2206 K"dinitrogen oxide","silver(I)nitrite","silver(I)nitride","silver(I)oxide" ="lead","lead(IV)oxide","dinitrogen oxide","lead(II)nitrite" >"nitrogen dioxide","nitric acid","oxygen","ammonium nitrite" n=14:o$(n):n _"Which one of the following list"'"of substances is produced when"'k$;"nitrate is heated ?"'' "y$(7,28):2213 n=17:y$(n):n Z"nitrogen","nitrogen monoxide","ammonia",o$(1),o$(2),o$(3),o$(4) /720:ph=9 :pa=13 :100d jnn=3"A sweet-smelling, colourless gas"'"that relights a glowing splint"'"is evolved.":100d B"Brown fumes of nitrogen dioxide"'"are also evolved.":100d  "When ";k$;"nitrate is heated" lnn=1"silver is produced :"'"2AgNO(s)2Ag(s)+2NO(g)+O(g)."''"So the correct answer is (";c$;")." nn=2"the crystals decrepitate (expand"'"with a cracking noise) and melt."'"Lead(II)oxide is formed :"'"2Pb(NO)(s)"'10 ;"2PbO(s)+4NO(g)+O(g)." nn=3"dinitrogen oxide is evolved :"'"NHNO(s)NO(g)+2HO(g)."'"Dinitrogen oxide may also be"'"prepared by heating a mixture of"'"salts which would give ammonium"'"nitrate."  90Z k$="concentrated nitric acid":l$="50% "+k$:z$="nitrogen dioxide":j$="nitrogen monoxide":nn=1:<.5l$=k$:k$="50% "+k$:z$=j$:j$="nitrogen dioxide":nn=2 a"Which of the following list"'"of substances is produced"'"when copper is treated with"'k$;" ?" "y$(7,28):2230 n=17:y$(n):n T"nitrogen","dinitrogen oxide","hydrogen peroxide","hydrogen","oxygen","ammonia",j$ "720:ph=8:100d `"The nitric acid acts as an"'"oxidizing agent. Its oxidizing"'"power depends on its strength." pa=12 :100d ,"If ";k$'"is used then ";z$'"is evolved :" Hnn=1"Cu(s)+4HNO(l)"'3;"Cu(NO)(aq)+2NO(g)+2HO(l)." Jnn=2"3Cu(s)+8HNO(aq)"'2;"3Cu(NO)(aq)+2NO(g)+4HO(l)." 3"If ";l$'"is used then ";j$'"is evolved instead."  90Z nn=1+(3*) ˓nn=1"A colourless, sweet-smelling gas"'"relights a glowing splint.":z$="dinitrogen oxide":j$="nitrogen monoxide":k$="nitrogen dioxide" ̂nn=2"A colourless gas forms brown"'"fumes in air.":z$="nitrogen monoxide":j$="dinitrogen oxide":k$="nitrogen dioxide" ͖nn=3"A brown, pungent gas condenses"'"to a yellow liquid when cooled.":z$="nitrogen dioxide":j$="dinitrogen oxide":k$="nitrogen monoxide" 0"Which one of the following gases"'"is it ?"'' "y$(7,28):2258 n=17:y$(n):n Q"ammonia","carbon dioxide","sulphur dioxide","carbon monoxide","nitrogen",j$,k$ >720:ph=10 :pa=14:nn=2pa=13  100d Znn=1"The gas is fairly soluble in"'"cold water, less soluble in hot.":100d 9nn=2"The gas is insoluble in water.":100d >nn=3"The gas is soluble in cold"'"water.":100d "The gas is ";z$;"." ߜnn=1"It may be prepared by heating"'"ammonium nitrate (or a mixture"'"of salts which would give"'"ammonium nitrate) :"'"NHNO(s)NO(g)+2HO(g)." nn=2"The brown fumes are nitrogen"'"dioxide, formed by the reaction"'"of nitrogen monoxide and oxygen:"'"2NO(g)+O(g)2NO(g)." nn=3"Nitrogen dioxide in water gives"'"a mixture of nitric acid (HNO)"'"and nitrous acid (HNO) :"'"2NO(g)+HO(l)HNO(aq)+HNO(aq)"'pc2;"Nitrogen dioxide is poisonous."  90Z Gq=ç28:v$(6)(qq+3)=" "aa=q-ç:5002 q a="23306":a,v$(1):a+1,v$(2):a+2,v$(3):a+3,v$(4):a+4,v$(5):a=a+4:q=1aa:a+q,v$(6)(q):q:a+q,255:bp:: ="68","50","2","2","8","QUESTION","123","90","2","2","8",nq 0"40","10","1","1","8","SUMMARY OF PERFORMANCE" "45","10","2","3","8","TUTORIAL 2","81","50","2","3","8","CARBON","49","75","2","3","8","& NITROGEN","57","100","2","3","8","CHEMISTRY","35","150","1","1","8","progress software,1984" h"80","40","2","2","8","PLEASE","25","70","2","2","8","PRESS ANY KEY","65","100","2","2","8","TO START" X"lln; hln ";lln;hln:23357=[,lln-256*(lln/256):23358>[,(lln/256):23359?[,hln-256*(hln/256):23360@[,(hln/256):64870f: @"65535"-"7962": bribB ֭123-10*aaa 90 2 2 8 12  a[ce hcorc stqt stqt qkocc ma PZ leakj^Oxsm TgreenLconcentrated nitric acidJnitrogen dioxide  a>=o^(F!$FVOID0 K CaCl(aq)+HO(l)+CO(g).ZgraphiteCbustarch graphite carbon dioxide glucose E a, b, c, or dAh RBtkenstar1 fex4cps \\r