ZXTape! 2 3Chemistry (Penguin Study Software) - Tape 2: Side APenguin Study SoftwareProgress Software1985English Educational19.95 ROM LoaderOriginalTZXed by Andrew Barker0,Tutorial 3: Oxygen, Sulphur and the HalogensCHEM 3  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$="3":v=11:a+v,v$(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 pY 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$(w):w:"5e3":v TPenguin Books Ltd., Harmondsworth, Middlesex, England. progress software, 1984. pc2="6":key=ky 850R:nhv=ç:score=ç:nc2=ç:nh=ç:nc=ç:nq=ç:lst1="1e3":nqt1="4":lst2="2e3":nqt2="6":lst3="3e3":nqt3="5":lst4="4e3":nqt4="7":nqt=nqt1+nqt2+nqt3+nqt4::r$="" 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 al=lst1+(k-1)*"25":k>nqt1l=lst2+(k-1-nqt1)*"25":k>nqt1+nqt2l=lst3+(k-1-nqt1-nqt2)*25:k>nqt1+nqt2+nqt3l=lst4+(k-1-nqt1-nqt2-nqt3)*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$(i)= i::୰"11";"TUTORIAL 3"';"9";"OXYGEN, SULPHUR"'4;"& THE HALOGENS CHEMISTRY"''':୰"11";o$;''':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$="abcd"(n3)   &m(xN,yN)=(x+y+(x-y))/"2" !;u()=("65536"*"23674"+"256"*"23673"+"23672")/"50" "t()=m(u(),u()) R'i=07:row:"a"+i,row:i Si0,0,0,00011000,00100100$,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 si0,0,0,01111100|,00001000,00010000,00100000 ,00100000   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":  M"Which one of the following may"'"be heated in order to prepare"'"oxygen ?" (nn=1+(3*):1002+nn  z$,j$,k$ 2"potassium chlorate","2KClO(s)2KCl(s)+3O(g)." E"sodium nitrate","2NaNO(s)2NaNO(s)+O(g).","sodium nitrite." "potassium manganate(VII)","2KMnO(s) KMnO(s)+MnO(s)+O(g).","potassium manganate(VI) and manganese(IV) oxide." "y$(7,28):1012 n=17:y$(n):n "sodium nitrite","potassium carbonate","potassium hydrogencarbonate","potassium hydroxide","sodium oxide","sodium sulphate","sodium sulphite" "720:ph=8:100d o"Oxygen is evolved by the action"'"of heat on a number of salts"'"containing a large percentage"'"of oxygen." &pa=14:nn=1pa=13  100d '"The correct answer is (";c$;") :"'j$ nn=1"Oxygen is usually prepared in"'"the laboratory by heating a"'"mixture of potassium chlorate"'"and manganese(IV)oxide which"'"acts as a catalyst.":90Z "The solid residue is ";k$  90Z A"Which one of the following gives"'"off oxygen when heated ?"'' (nn=1+(3*):1027+nn  z$,j$,k$ +"lead(IV)oxide","2PbO(s)2PbO(s)+O(g)." X"copper(II)nitrate","2Cu(NO)(s) 2CuO(s)+4NO(g)+O(g)." K"silver(I)carbonate","AgCO(s)AgO(s)+CO(g).","2AgO(s)4Ag(s)+O(g)."  "y$(7,28):1037   n=17:y$(n):n  "ammonium nitrate","lead(II)oxide","copper(II)carbonate","calcium oxide","ammonium carbonate","lead(II)carbonate","copper(II)oxide" "720:ph=8:100d ["Oxygen is produced by the action"'"of heat on certain oxides and"'"nearly all nitrates." &pa=13 :nn=3pa=12  100d #"The correct answer is (";c$;")." ]nn=1'"When ";z$;" is heated"'"oxygen is given off and"'"lead(II)oxide is left :"'j$ vnn=2"When ";z$;" is heated"'"nitrogen dioxide and oxygen are"'"given off and copper(II)oxide"'"is left :"'j$ nn=3"If ";z$;" is heated"'"carbon dioxide is given off and"'"silver(I)oxide is formed :"'j$'"The silver(I)oxide is broken"'"down by heat to give oxygen :"'k$  90Z l"A colourless, odourless gas"'"rekindles a glowing splint."'"Which one of the following"'"gases is it ?"''  z$="oxygen" j$="dinitrogen oxide" "y$(7,28):1056  n=17:y$(n):n  p"hydrogen","nitrogen","carbon dioxide","sulphur dioxide","carbon monoxide","nitrogen dioxide","nitrogen oxide" $720:ph=10 &,nm=1+(4*):nm=n11062& '+nm+4,0;"(";"abcd"(nm);")";j$ ) 100d +,"The gas is about 20% by volume"'"of air." -pa=13 :100d ."The correct answer is (";c$;")."'"Note that dinitrogen oxide is"'"colourless and rekindles a"'"glowing splint like oxygen."'"However, dinitrogen oxide has a"'"sweet smell and is quite soluble"'"in cold water." 0 90Z 3>y$(7,28):nn=1+(4*):10775+nn 4n=17:y$(n):n 5z$,j$,k$,l$:<.5z$ 6j"zinc oxide","aluminium oxide","carbon monoxide","dinitrogen oxide","magnesium oxide","copper(II)oxide","calcium oxide","carbon dioxide","acidic","An acidic oxide dissolves in water to give an acid.","Acidic oxides are usually oxidesof non-metals. They include carbon dioxide, sulphur dioxide,sulphur trioxide and nitrogen dioxide.","sulphur trioxide" 7"zinc oxide","aluminium oxide","carbon monoxide","dinitrogen oxide","carbon dioxide","sulphur trioxide","sulphur dioxide","copper(II)oxide","basic","A basic oxide dissolves in waterto form a base or reacts with anacid to give a salt and water.","Basic oxides are usually oxides of metals. They include sodium oxide, calcium oxide, copper(II)oxide and magnesium oxide.","sodium oxide" 8l"carbon monoxide","nitrogen oxide","carbon dioxide","sulphur trioxide","nitrogen dioxide","iron(III)oxide","sodium oxide","zinc oxide","amphoteric","An amphoteric oxide reacts with both acids and bases to give a salt and water.","Amphoteric oxides, which can behave either as acidic or basicoxides, include zinc oxide and aluminium oxide.","aluminium oxide" 9p"carbon dioxide","nitrogen dioxide","iron(III)oxide","sodium oxide","zinc oxide","aluminium oxide","magnesium oxide","carbon monoxide","neutral","A neutral oxide gives a neutral solution if it dissolves in water and reacts with neither acids nor bases.","Neutral oxides include water, carbon monoxide, nitrogen oxide,and dinitrogen oxide.","dinitrogen oxide" ;5"Which one of the following"'"oxides is ";j$;" ?"'' C"720:ph=8:100d D*k$:pa=13 :nn=1pa=12 Enn=4pa=14 F 100d G&"The correct answer is (";c$;")."'l$ J 90Z ?"Which one of these reactions"'"produces sulphur dioxide ?"'' ,nn=1+(2*):2002+nn:z$ "heated Cu(s)+HSO(conc.)" "NaSO(s)+HCl(dilute)" "y$(7,28):2010 n=17:y$(n):n ڨ"heated Cu(s)+HSO(dilute)","heated Zn(s)+HSO(dilute)","NaSO(s)+HCl(dilute)","FeS(s)+HCl(dilute)","S(s)+HNO(conc.)","HS(g)+HSO(conc.)","CuO(s)+HSO(dilute)" "720:ph=8:100d b"Under certain circumstances":nn=1"sulphuric acid can be reduced"'"to sulphur dioxide." Ann=2"sulphur dioxide can be obtained"'"from sulphites." pa=12 :100d 'nn=1"Sulphur dioxide is prepared by"'"heating a mixture of copper and"'"concentrated sulphuric acid."'"The acid oxidizes the copper to"'"copper(II)oxide which then"'"reacts with more acid to give"'"copper(II) sulphate. Overall :"'"Cu(s)+2HSO(l)"'6;"CuSO(aq)+SO(g)+2HO(l)." nn=2"If dilute hydrochloric acid (or"'"dilute sulphuric acid) is added"'"to sodium sulphite then sulphur"'"dioxide is evolved :"'"NaSO(s)+2HCl(aq)"'7;"2NaCl(aq)+SO(g)+HO(l)."''"This is a test for any sulphite."  90Z "A colourless, pungent gas turns"'"orange acidified potassium"'"dichromate(VI) solution green."'"Which one of the following"'"gases is it ?" z$="sulphur dioxide" "y$(7,28):2031 n=17:y$(n):n u"hydrogen chloride","hydrogen sulphide","chlorine","ammonia","nitrogen dioxide","dinitrogen oxide","carbon dioxide" #720:ph=10 :100d 9"The gas is very soluble in"'"water and forms an acid." pa=13 :100d "The correct answer is (";c$;")."'"Sulphur dioxide reduces the"'"orange acidified potassium"'"dichromate(VI) to green"'"chromium(III)sulphate :"'"KCrO(aq)+HSO(aq)+3SO(g)"'" KSO(aq)+Cr(SO)(aq)+HO(l)."  90Z Y"Complete correctly the following"'"statement."'"Sulphur trioxide can be prepared"'"by" !z$="oxidizing sulphur dioxide." "y$(7,28):2056 n=17:y$(n):n "reducing sulphur dioxide.","evaporating sulphuric acid.","heating sulphur.","reducing sulphuric acid.","oxidizing sulphuric acid.","dissolving sulphur in water.","heating potassium sulphate." "720:ph=9 :100d ,"A catalyst is used in the"'"preparation." pa=12 :100d "Sulphur trioxide can be prepared"'"by passing sulphur dioxide and"'"oxygen together over a platinum"'"catalyst at 450C :"'"2SO(g)+O(g)2SO(g)."'"The sulphur trioxide can be"'"condensed as a white solid."'"So the correct answer is (";c$;")."  90Z (nn=1+(3*):2076+nn  j$,z$,k$ "concentrated nitric acid ?","sulphuric acid","During the reaction brown fumes are evolved.","sulphur trioxide","dinitrogen oxide","nitrogen oxide","sulphurous acid","sulphur","nitrogen","oxygen","nitrogen dioxide" "a solution of chlorine water ?","sulphuric acid","In the reaction the chlorine is reduced.","sulphurous acid","sulphur","sulphur trioxide","hydrogen sulphide","hydrogen peroxide","oxygen","hydrogen","hydrochloric acid" "sodium hydroxide solution ?","sodium hydrogensulphite","Remember that sulphurous acid isa dibasic acid.","sodium hydrogensulphate","sodium sulphate","sodium sulphide","sulphur","sulphur trioxide","sulphurous acid","sulphuric acid" "c"Which one of the following"'"substances is formed if sulphur"'"dioxide is bubbled through "'j$'' $y$(7,28) %n=17:y$(n):n 'nn3ƥ<.5z$ +#720:ph=10 :100d ,k$ .pa=13 :100d /#"The correct answer is (";c$;")." 0nn=1"The nitric acid is reduced to"'"nitrogen dioxide and the sulphur"'"dioxide is itself oxidized to"'"sulphuric acid :"'"2HNO(l)+SO(g)HSO(l)+2NO(g)" 1nn=2"The chlorine is reduced to"'"hydrochloric acid while the"'"sulphur dioxide is oxidized to"'"sulphuric acid :"'"Cl(aq)+2HO(l)+SO(g)"'12 ;"HSO(aq)+2HCl(aq)." 2nn=3"If sodium hydroxide solution is"'"saturated with sulphur dioxide"'"then sodium hydrogensulphite is"'"formed :"'"NaOH(aq)+SO(g)NaHSO(aq)." 3 90Z 4b"In which one of the following"'"reactions is sulphuric acid"'"acting as an oxidizing agent ?"'' 6(nn=1+(3*):21037+nn 7 z$,j$,k$ 8-"C+2HSOCO+2HO+2SO","carbon","dioxide" 9*"S+2HSO3SO+2HO","sulphur","dioxide" :+"Zn+2HSOZnSO+SO+2HO","zinc","oxide" >"y$(7,28):2112@ ?n=17:y$(n):n @"Zn+HSOZnSO+H","Mg+HSOMgSO+H","CuO+HSOCuSO+HO","CuCO+HSOCuSO+CO+HO","NaCl+HSONaHSO+HCl","KNO+HSOKHSO+HNO","NaOH+HSONaHSO+HO" D"720:ph=9 :100d En"Hot concentrated sulphuric acid"'"is an oxidizing agent."'"Dilute sulphuric acid acts"'"simply as an acid." Fnn=3pa=14 G 100d H"The correct answer is (";c$;")."'(j$-32 );j$(2);" is oxidized to ";j$'k$;" by hot concentrated"'"sulphuric acid which is itself"'"reduced to sulphur dioxide." ISnn=3"Zinc oxide reacts with more acid"'"to form zinc sulphate and water." J 90Z M:"Which one of the following is"'"insoluble in water ?"'' Oj$="sulphate" PNz$="barium "+j$:<.65&fffz$="calcium "+j$:<.5z$="lead(II)"+j$ R"y$(7,28):2132T Sn=17:y$(n):n Tm"copper(II)"+j$,"iron(III)"+j$,"iron(II)"+j$,"zinc "+j$,"magnesium "+j$,"sodium hydrogen"+j$,"ammonium "+j$ ]"720:ph=8:100d ^"Insoluble sulphates can be"'"prepared as a precipitate by"'"adding dilute sulphuric acid to"'"a solution of the metal salt." `pa=14:100d a]"The correct answer is (";c$;")."''(z$-32 );z$(2);" is insoluble"'"in water." c 90Z Y"Which one of the following"'"reactions may be used to prepare"'"hydrogen sulphide ?"'' 5nn=1+(2*):3002 +nn:z$,j$,k$,l$ L"FeS(s)+HCl(dilute)","FeCl(aq)+HS(g).","hydrochloric","FeS(s)+2HCl(aq)" L"FeS(s)+HSO(dilute)","FeSO(aq)+HS(g).","sulphuric","FeS(s)+HSO(aq)" "y$(7,28):3010 n=17:y$(n):n ¬"heated FeSO(s)","FeSO(s)+HCl(dilute)","Fe(s)+HSO(dilute)","heated Fe(s)+HSO(conc.)","Fe(SO)(s)+HCl(dilute)","heated S(s)+HNO(conc.)","heated S(s)+HSO(conc.)" "720:ph=9 :100d N"The right hand side of the"'"equation representing the"'"reaction is : ";j$ pa=14:100d h"Hydrogen sulphide is prepared by"'"adding dilute ";k$;" acid"'"to iron(II)sulphide :"'l$'14;j$ 90Z ч"A colourless gas turns a piece"'"of filter paper soaked in"'"lead(II)nitrate solution black."'"Which one of the following"'"is it ?" z$="hydrogen sulphide" "y$(7,28):3031 n=17:y$(n):n k"hydrogen chloride","sulphur dioxide","sulphur trioxide","carbon dioxide","hydrogen","chlorine","ammonia" #720:ph=10 :100d $"The gas also smells of bad eggs." pa=13 :100d "The correct answer is (";c$;")."'"Hydrogen sulphide reacts with"'"the colourless lead(II)nitrate"'"solution to form black lead(II)"'"sulphide :"'"Pb(NO)(aq)+HS(s)"'13 ;"PbS(aq)+2HNO(aq)." 90Z (nn=1+(2*):3051 +nn j$,z$ "chlorine","sulphur is formed.","the chlorine is oxidized.","the gases ignite.","hydrogen is formed.","sulphurous acid is formed.","no reaction occurs.","a yellow gas is formed.","sulphuric acid is formed.","hydrogen chloride is formed." "sulphur dioxide","sulphur is formed.","the gases ignite.","hydrogen is formed.","sulphurous acid is formed.","no reaction occurs.","a yellow gas is formed.","the gases liquefy.","sulphur trioxide is formed." y$(7,28) n=17:y$(n):n nn2ƥ<.5z$ 3"Complete correctly the following"'"statement."'' <"If hydrogen sulphide is mixed"'"with moist ";j$;" then"'' #720:pa=14:100d "A yellow deposit is formed." 100d q"The correct answer is (";c$;")."'"The hydrogen sulphide is"'"oxidized to sulphur and the "'j$;" is reduced to" Tnn=118,23;"hydrogen chloride :"'"HS(g)+Cl(g)S(s)+2HCl(g)." 9nn=2"sulphur :"'"2HS(g)+SO(g)3S(s)+2HO(l)."  90Z (nn=1+(2*):3076 +nn  j$,z$,k$ "concentrated nitric acid ?","sulphur","During the reaction brown fumes are evolved and the solution becomes cloudy.","sulphur trioxide","dinitrogen oxide","nitrogen oxide","sulphurous acid","sulphur dioxide","nitrogen","oxygen","nitrogen dioxide" "concentrated sulphuric acid ?","sulphur","During the reaction the solutionbecomes cloudy.","sulphurous acid","sulphur dioxide","sulphur trioxide","nitrogen","hydrogen peroxide","oxygen","hydrogen" e"Which one of the following"'"substances is formed if hydrogen"'"sulphide is bubbled through "'j$'' y$(7,28) n=17:y$(n):n nn2ƥ<.5 z$ #720:ph=10 :100d k$ pa=14:100d #"The correct answer is (";c$;")." nn=1"The nitric acid is reduced to"'"nitrogen dioxide and the"'"hydrogen sulphide is oxidized"'"to sulphur :"'"2HNO(l)+HS(g)"'10 ;"S(s)+2NO(g)+2HO(l)." nn=2"The sulphuric acid is reduced"'"to sulphur while the hydrogen"'"sulphide is oxidized to sulphur:"'"HSO(l)+3HS(g)4S(s)+4HO(l)."  90Z (nn=1+(2*):3101 +nn  j$,z$,k$,l$ L"restricted","sulphur is formed.","sulphur dioxide is formed.","partially" L"plentiful","sulphur dioxide is formed.","sulphur is formed.","completely" !3"Complete correctly the following"'"statement."'' ">"If hydrogen sulphide burns in a"'j$;" supply of air then"'' $"y$(7,28):3110& %n=17:y$(n):n &"sulphur trioxide is formed.","hydrogen is formed.","sulphurous acid is formed.","no reaction occurs.","a yellow gas is formed.","sulphuric acid is formed.",k$ ,720:100d -G"The hydrogen sulphide is"'l$;" oxidized in the"'j$;" supply of air." /pa=16:100d 0#"The correct answer is (";c$;")." 1Xnn=1"A yellow deposit of sulphur is"'"formed :"'"2HS(g)+O(g)2S(s)+2HO(g)." 2Mnn=2"Sulphur dioxide is formed :"'"2HS(g)+3O(g)2SO(g)+2HO(s)." 3 90Z (nn=1+(3*):4001+nn z$,j$ %"manganese(IV)oxide","concentrated" +"potassium manganate(VII)","concentrated" "bleaching powder","dilute" c"Which one of the following"'"could be used with ";j$'"hydrochloric acid to prepare"'"chlorine ?" "y$(7,28):4012 n=17:y$(n):n p"sodium chloride","zinc","copper","sodium carbonate","calcium chloride","iron(II)sulphide","calcium carbonate" "720:ph=9 :100d Qnn3"In the reaction the concentrated"'"hydrochloric acid is oxidized." Pnn=3"Dilute nitric acid could be used"'"instead of hydrochloric acid." pa=13 :100d #"The correct answer is (";c$;")." nn=1"Concentrated hydrochloric acid"'"and ";z$;" are"'"heated together and chlorine is"'"evolved :"'"MnO(s)+4HCl(aq)"'6;"MnCl(aq)+Cl(g)+2HO(l)." nn=2"Concentrated hydrochloric acid"'"with ";z$'"gives chlorine in the cold :"'"2KMnO(s)+16HCl(aq)"'10 ;"2KCl(aq)+2MnCl(aq)"'15;"+5Cl(g)+8HO(l)." nn=3"Dilute hydrochloric acid and"'z$;"(CaOCl) gives"'"chlorine in the cold :"'"CaOCl(s)+2HCl(aq)"'7;"CaCl(aq)+Cl(g)+HO(l)."  90Z _"A pungent gas bleaches a piece"'"of damp litmus paper. Which one"'"of the following is it ?" z$="chlorine" "y$(7,28):4031 n=17:y$(n):n |"hydrogen chloride","sulphur dioxide","sulphur trioxide","carbon dioxide","nitrogen dioxide","hydrogen sulphide","ammonia" "720:ph=8:100d $"The gas is also green in colour." pa=11 :100d  "The correct answer is (";c$;")."'"When chlorine comes into contact"'"with water hypochlorous and"'"hydrochloric acids are formed :"'"Cl(g)+HO(l)HClO(aq)+HCl(aq)."'"Hypochlorous acid is a powerful"'"oxidizing agent which bleaches"'"vegetable dyes such as litmus."  ;pc2;"Chlorine is poisonous."  90Z (nn=1+(3*):4051+nn z$,j$,k$,l$,m$ 9"yellow","red","black","green","iron(II) chloride" ?"pale brown","black","violet","colourless","potassiumbromide" :"brown","yellow","violet","colourless","potassiumiodide" b"What colour solution is obtained"'"if chlorine is bubbled through a"'l$;" solution of ";m$;" ?" "y$(7,28):4060 n=17:y$(n):n ;"green","dark blue","pink","pale blue","colourless",j$,k$ "720:ph=9 :100d Knn1"Recall the relative reactivities"'"of the halogen elements." /nn=1"Chlorine is an oxidizing agent." pa=9 :100d nn=1"The chlorine oxidizes the green"'"solution of iron(II)chloride and"'"a yellow solution of iron(III)"'"chloride is obtained :"'"2FeCl(aq)+Cl(g)2FeCl(aq)." nn1"Chlorine is more reactive than"'"bromine which is more reactive"'"than iodine. Therefore when"'"chlorine is bubbled into a"'"solution of potassium "; wnn=2"bromide"'"the solution turns pale brown"'"due to liberated bromine :"'"2KBr(aq)+Cl(g)2KCl(aq)+Br(aq)" xnn=3"iodide"'"the solution turns brown due to"'"iodine which is liberated :"'"2KI(aq)+Cl(g)2KCl(aq)+I(aq)." O"Note that colours may vary with"'"the concentration of solutions.":90Z (nn=1+(2*):4076+nn  j$,z$,k$ !"cold, dilute","NaClO","NaClO" &"hot, concentrated","NaClO","NaClO" "Which one of the following"'"compounds is formed in solution"'"if chlorine is bubbled into a"'j$;" solution of"'"sodium hydroxide ?" "y$(7,28):4084 n=17:y$(n):n <"NaClO","NaClO","NaHClO","NaHClO","NaClO","NaClO",k$ #720:ph=10 :100d j"The left hand side of the"'"equation representing the"'"reaction is :":nn=1"2NaOH(aq)+Cl(g)" "nn=2"6NaOH(aq)+3Cl(g)" pa=15:100d +"As well as sodium chloride and"'"water," }nn=117,7;"sodium hypochlorite is"'"formed :"'"2NaOH(aq)+Cl(g)"'5;"NaClO(aq)+NaCl(aq)+HO(l)." }nn=217,7;"sodium chlorate is"'"formed :"'"6NaOH(aq)+3Cl(g)"'2;"NaClO(aq)+5NaCl(aq)+3HO(l)."  90Z "If a mixture of sodium chloride,"'"manganese(IV)oxide and"'"concentrated sulphuric acid is"'"heated, which one of the"'"following gases is evolved ?" z$="chlorine" "y$(7,28):4106   n=17:y$(n):n  v"hydrogen chloride","oxygen","sulphur dioxide","sulphur trioxide","hydrogen sulphide","hydrogen","hydrogen peroxide" #720:ph=10 :100d d"The gas is often prepared by"'"heating manganese(IV)oxide with"'"concentrated hydrochloric acid."  100d "The correct answer is (";c$;")."'"The equation for the reaction is"'"2NaCl(s)+MnO(s)+2HSO(l)"'10 ;"NaSO(aq)+MnSO(aq)"'16;"+Cl(g)+2HO(l)."  90Z I"Which one of the following"'"reactions produces hydrogen"'"chloride ?" "z$="heated NaCl(s)+HSO(conc.)" ""y$(7,28):4132$ #n=17:y$(n):n $"NaHSO(s)+HCl(dilute)","Fe(s)+HCl(dilute)","Cu(s)+HCl(conc.)","heated MnO(s)+HCl(conc.)","KMnO(s)+HCl(conc.)","NaCl(s)+HNO(dilute)","NaCl(s)+HSO(dilute)" -"720:ph=8:100d .4"During the reaction sodium"'"sulphate is formed." 0pa=12 :100d 1"The correct answer is (";c$;")."'"Hydrogen chloride is prepared by"'"adding concentrated sulphuric"'"acid to sodium chloride :"'"NaCl+HSONaHSO+HCl."'"On heating, more of the gas is"'"evolved :"'"NaCl+NaHSO(aq)NaSO+HCl." 4 90Z 6"A pungent gas turns a piece of"'"damp blue litmus paper red. It"'"gives a white precipitate with"'"silver nitrate solution. Which"'"one of the following is it ?" 8z$="hydrogen chloride" :"y$(7,28):4156< ;n=17:y$(n):n [,(lln/256):23359?[,hln-256*(hln/256):23360@[,(hln/256):64870f: @"65535"-"7962": bribB ֭68 50 2 2 8 QUESTION a[ce hcorrcx estqtstqtst qtstqtq ko ccTyellow ma 0  UQZ laj^MpotassiumiodideLUNeutral oxides include water, carbon monoxide, nitrogen oxide,and dinitrogen oxide.Ns m6 F13  a>=o^(F!$Zpotassium chlorateJ2KClO(s)2KCl(s)+3O(g).Ksodium nitrateCdusodium sulphate potassium hydrogencarbonate sodium sulphite potassium chlorate E a, b, c, or dAh RBtkenKstar1 fex4cps \\)