il if
!Hi
HH
flff
nnnn
ff! t
s a§~ ri
"•
,-i
iH
Hi
Jjf
ti!
f. ff
§'.0§~
ti
.I
16,
Crystals of sodium chlor iM arc BEST
dcscri bcdas
(A)
ionic
(B )
(C)
(D)
mok-cular
metallic
macromo lec ular
A piece ofmc rnl is rcncted with an ac i,\
rnproduce hydrogcn gas. Which of thc
following ste ps shoul d I><, e mployed in
u, derl o incrcasc thcrnteof th c reaction?
J
lnc rcasin g thctempcraturc a twhich
thercactioniscarriedout
11
Ill
Subd i~iding thepieceofmetal
Reduci ng the concc ntratio nof the
acid
(Al
I and II o nly
landlllo nly
!land lll on!y
l,l! and Ill
Wh ich of the following substanc es does
N OT cond uct e lectricity?
(A)
L ead
(B}
(C)
(DJ
Coppe r
Ethanol
Ethanoica ci d
Two sol utions are co
m i~ed in order 10
dernonstratee ndot hc rm icchange. Which
of the fo llowi ng tech niques wo ul d be
MOST appropriate?
(A)
(B)
(CJ
(D)
Taking mass readin gs
Taking temperature readings
Monitoring thcpHoflhe so!utions
Car eful ly o bserving co lour
changes
(Bl
(C)
(D)
WhichofthcfoHo w ingsubstances reacts
with an acid, liberati ng a gas which tu rn s
li111 cwa1ermilky?
(A)
(B)
(C)
(D)
Methylornngc
Barium chloride
Caki umcarbonale
Magnes ium n1ctal
[
i
I
8- 8-·-·-8-·- 8·- II
il
17.
Which of1 hc following is the corre<l
fommla foramm<>nium carb,,)nolc?
(A)
'"''." 'piM ofmago<>i om,ibboo is born> ~
J I.
,na,r, magnes ,uni o xide is fonned. The
magnes iu moxideis thenp laced in water
nndtcstedwithlitmus w lution,whic hturns
Nll,CO,
(fl)
Nll,(CO, ),
(C)
(NH,),CO,
(DJ
(NH,), (CO,),
!"l>e exp,,rim cnt above s ho wsth atmagne •
,iumox ide is
(A)
( fl)
(C)
(0)
Wllichofd1efol10,.·ingcompour.dsi s solublc
·-·n!dwarer?
(A)
(ll)
(C)
(D)
29.
Ladsulfate
Lead nitrate
Leadchloridc
Leodcorbonate
32
(A)
(B)
chlorinei sli!>cratedat!hel!lo,.lc
sod ium is lib<:,a1cd atthcca1hode
theso lutionattheano,Jcisacidic
thesolutiona1thecathodei,acidic
Which o f the following substances is an
irr, ponam con stimenlofch lorophy ll ?
(A)
(B)
(C)
Whcnaconcentrated solutionofsod ium
ch loridci,clectrolysedusin g car!>on
e!ecu-odes.
(C)
(DJ
(DJ
33.
Sulfur is uw d in which of tl,~ fo llowin g
JI
l1l
Which of lhe following swemcms is 1rue
forthcequa1ion!>clow?
Mg(s) + H, S0,(11<j) -
(A)
(B)
(CJ
(D)
\ A)
( B)
MgSO.(aq) + H,(!:)
(C)
l lydrogcni soxidi2edfro111 0 to + I.
Hydrogen is rcducedfrom +2to0 .
M;_: isoxidizedfrom01 0+2
Mg is reduuJtfom +2 to O.
(D)
34.
lro n
Co rpcr
C alcium
Magnesium
))fO<:osso>"/
I
JO.
insoluble
nounal
acid ic
basic
Vukanizat ionor rubb<: r
E~trnction of iron frrnn iro n o r~
Manufacture o fexplos i\"CS
l and ll o nly
landlll on l)
lland !Jl on ly
1.llandll!
Potassi um isnmetnl. From tll is in format io n
ONLY. itn1ay be ded uced 1hat po1assi u1n
(,\)
isso f!
(BJ
1s veryreac1ivc
hnsa low rnel!in g poim
,c,
<DJ
isagoodco nduc1o r ofckci11c,1)
Which of the following observations is
expected when aqueous sih·er nitrate is
added toaqucou spotassiumchloridc?
JS.
Whic h oflhefo\l ow ingproccdures canbc
used toidcntifynrnmonLa ga5?
(A)
(UJ
(A)
(B)
(C)
(D)
ApungelllgMiscvolve.J
Ablueprecipita\cappears
Awhile preci pitate appears
A brown precipitate appears.
(C)
(D)
WhLeh ofthcfo\lowingmctnlswi\lrcac!
MOST vigorou sly with dilute add?
{Al
37.
{B)
Copper
!ron
(C)
L<,ad
(DJ
Zi nc
Amrnoniarnnybeproduccdinthelnboratory
byheating amixture ofammoniumchlorid e
'"'
(A)
( Il l
(CJ
(D)
Whichofthcfollowingstatcmentsexpl ains
why, ov ert im e, aluminium products do
NOTdctcrioratcinairasdoironproducts?
(A)
(BJ
Alu mi nlumis lowcrthanironinthc
activityserics, tlicrcforc itreact s
less ,cadilywithair thaniron.
Al umin ium is hi gher up in the
acti¥ityseriesthaniron,then:fon:
11,smorcres1stanttocorrosion
(DJ
Bmh mctals form oxide coats but
the alu mi niu m oxide prevents
fu rther reaction while til e iron
oxide docs not
Bol h metals form hydroxide coai s
but the aluminit1m hydroxide
prc,·enl5 funhcrreaction wh ile
lhc iro n hydroxidedocs nol
ammonium sulfate
calciu mh ydrox ide
calcium ch loride
co pp er
refer to the extraction of
alumini1,mfrombauxi1e
40.
Cryolitcisuscd
(A)
1haniron
(C )
Passin gtl1cgasthrough limcwatcr
l'lacing aburning sp lintinajarof
thcgas
Plncing n g\owingsplin t inajar of
thcgns
Placingmoistredandbluelitmus
papcr in ajarofthe gas
(BJ
(CJ
( D)
4 1,
to lower the mehing point of th e
electrolyte
a~ a source of add itional ions
1oprotectthe cnrbon a11ode
as the c\cc trolytc
T hccnrbonanodcten ds to
(A )
(U)
(C)
(Dl
react wit i1 1hccryoli1e
be oxidized by oxygen
di ssolw in 1hc dcc1ro l)t~
L>c oxidi zcdbytl uorincfrom(')'o\ik
,~:,~!;"'""foll owi"g
,q,wem sol•"'°'"" ill
P""'""'' 1eJJow P"' ipi1«e " ilh """''"'" poi,,ss,,,
!ii g 1:: :'.ti:,:~;,
Whic h of lhe lollowi ng i,<iar~ lnte o f 11011 met al s'/
I.
II.
Ill
(A)
IB)
(CJ
(DJ
ll! o nl)
land JI on ly
! ;i nd l!l only
J, ll aodll l
!Jexa
ne i, an olkane wit h <ix ca rbon ato ms per mo lc~u lc . Wh ich uf1l 1,· 10110" ic,r ,~ 111,· 1l' m,u l.,
fo r hc,cane?
(A)
C_I Ju
(13)
C. H,.
(C)
c.H,.
(DJ
c . H,.
fil.!n..:!1r, fe rsiorloe fo/k,wi ngslr!1Gt m csof1wo or,;a11iccompoo, nds, I an d
fo rm ulai s C, H, O
H
I
II
Ji
I
I
11
I
OJI
I
II
Com puunJI
Crn n po1111J, J ,md II
(A)
( 8)
;,re•
known ,,. the
isc1me rsofC ,H,O
iso top~sofC,H,O
II
I
11 - c -c-c- 11
:~i ~::1~;~;-~·: t~~'.:_: :;~:\~1)/~'.{;
II -
I
C-
I
II
II
I
H
I
C -c -
I
II
I
H
Corn pou nd l l
0 11
-10-
46.
Which of the following featu~s is NOT true of all homologous series of compounds?
Themembcrsoftheserieshavc
(A)
(B)
(C)
(D)
the same functional group
thesa111 e generalformula
simi lar chemical properties
the same emp irical formula
ll£tn..i1 refors to the following equation.
II
II -
II
II
I
I
C -
C
=C
'
H
II
!
I
-
C -
'
11
X
H
Whati s thccorrccts\rucl<,ralformulaforX?
(Al
(BJ
II
II
JI
I
l
I
II
I
H - C - C - C - C - 11
I
I
I
I
Br
Br
II
II
II
II
II
II
I
I
I
I
11 - C - C - C - C - II
I
I
I
I
II
llr
llr
11
(CJ
H
II
11
11
I
I
I
I
ll-C -C-C -C-11
I
I
I
I
IJr
II
ll
Br
(D J
11-C-C-C-c_u
II
Ii
11
I
I
I
I
I
II
Br
I
Ii
11
I
I
llr
"
11
"""-" " ''"'" '"' fu"> ,,,.,.,~ ""''""' '"'""'" ,rc,,.,e,,""
11 II
0
u-c-J - c,f
I
I
H
,
11
0 -11
Ill
,fo
11 -,-c'\. '{
1 0-,-11
Q. R ,,.d S ,how"
II
II
II
II
II
11
b<low.
1 -,-1-1-0- H
I
I
I
II
48.
~%~:.~f
the followin, cou« lly identifies 1ho h omologm,s series IO whid, ,·ach co mrcu,nd
r:=r::-~Q
~=:r::=~-=---,~ -
;t:Ilt';' """"·"··••brn . ,...
w,oc,oc,,ow;,,, ,., ...... ,.,,e1,
(D)
esror
T,..... ,.,,,,."
- 1250.
Whichofthcfo!lowingisthcfullydispbycd
structuralfonnulaof2-bromobu tane?
ll
II
I
(A)
I
H-C-C -
'
'
Br
(C)
U
I
l
C -C - H
'
II
II
II
I
JI
Br
II
II
II
II
II
H
I
I
I
I
11
(B)
II
H:::c
=
II'
I
'
'
Br
Whenahydrocarbonmolcculeiscrackcd,
whichof thefo!lowingsma ll crmo!cculcs
nreproduced?
!II .
(A)
7 - 7 - - II
11-C -C -C -C -
51.
(BJ
(CJ
(DJ
(A)
(8)
(0)
H -C-C-C -
'
II
'
Br
l and II on ly
l and Ill on ly
II a nd Ill on ly
l, ll and[[l
,\ polyamidc is formed by a condensation
reactionbctweenamolcculecontaining
ll
II
'i 11 - ~ - 111/
Anal kane
Ana lkcnc
An alcohol
(CJ
11
(DJ
at least one -COOH group and
another conta ining at least one
-NH,group
a1leastone -OHgroupandanothcr
containing at leas t one -COOH
group
atleast o nc-OHgroupand ;inothcr
comaining:itlcastonc -NH , group
two -OH groups and anot her
conta ining two -COOH groups
sm,ighhh , ,., ~
~J.
\\'hich of ,h c folio" ir, ~ mo le<:<i l-,r fonn ul,,c reprc,rn h lhe :olc<J h"I wl 11, e ho ilin;• r ,+ ir i, 1 (,()
(/\)
S~.
0
Cll ,(Cll,),011
( B)
CJl ,( CH,l,QH
(C)
CH,ICH ,),011
( D1
Cf!,(CH,), OH
Whjch rc:1<1ion irivnh·cs 1hc h,, j]jn ~ ofa
1:,1 or oil with :,qu~uu, <Odium hydro~ide
{rnu, ti csoJaj?
(A)
(BJ
(C)
10,
~ l'.'12 01 0/J/CS[C J O~'.'
55 .
rl1e M/\ JOR naluralso L11 cc• v: .tlka,,c
·,lkene
3
( S)
(BJ
(CJ
fD )
UO O 's TO T I fl:: N f- _\
r P\, ;1
<-''
57
·
Whie h o_fthc fo\lowingeom pound,can
dccolourizc potassi11m manga nai<'(V!lj?
58 .
It \I
(A)
1 -1-1-11
Whichofthcfollowing , ub,toi,cc, i,KOT
a polymer?
(A)
( BJ
Nylon
l'rolc in
(D)
Cellulose,
(C)
59 _
so~plcs< detcrgeni, •re
(BJ
made from fats
all biodc~radable
(D)
nota!Tec1cJbyhardwa1cr
\ A)
(B)
Fructose
(C)
·norgan·cma!er"a ls
y Ill
c - c - c - 11
k k
It Ii
It
(CJ
11 -
1
,1
{D)
H-l-1-J\
11 -
C-ll
I
"
60
The fern,e r,l:llionof sugars. usin g gl ucose '1 S the submmc . can be represe nted by the c~uauon
(A )
C, 11.,0,+ C, H.,O, - C.,H ,,O ,, +ll,0
\Bl
C,11,,0, + 60, - 6CO, + 6!1,0
(C)
C/1,,0, - 2C,H,O H +2 CO,
(D )
6CO, + 611,0..., C,11,,0, + 60,
EN D Ot" TES" I
IFYOlJ FI NIS H DF:FORE Tl ~
