U
TEST CODE OLzI2OLO
FORM TP 2019004
JANUARY 20I8
CARIBBEAN EXAMINATIONS COUNCIL
CARIBBEAI\T SECOI{DARY EDUCATION CERTIF'ICATE@
EXAMINATION
CIIEMTSTRY
.
Paper 01 - General Proficiency
I hour 15 minures
18 JAI\ruARY2018 (p.m.)
READ TITE FOLLOWING INSTRUCTIONS CAREFTJLLY.
il
I
This test consists of 60 items. You will have I hour and l5 minutes to answer them.
2.
In addition to this test booklel you should have an answer sheet.
3
Each item in this tist hasJicur suqFgsted apw-eT lettered (A), (B), (C), (D). Read each item you
are about to answer and decide which choice is best.
4.
On your answer shee! find the number which corresponds to your item and shade the space having the same letter as the answer you have chosen. Look at tlre sample item betow.
Samole Item
The SI unit of length is the
(A)
(B)
(C)
(D)
Samole Answer
o@
mete
nenfton
second
kilogram
The best answer to this item is "metre',, so (A) has been shaded.
5.
If you ,want to change your answer, enase it completely before you fill in your new choice.
6.
When you.are told-to begin, turn the page and work as quickly and as carefully as you can. If you
cannot answer an item, go on to the next one. You may return to that item laler. -
7.
You may do any rough work in this booklet.
8.
f igures are not necessarily. drawn to scale.
r
:
:
9.
ffi
a'
You may use a silent, non-piogrammable calculator to answer items.
DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO.
-21
Particles of a solid tannot move about
freely because the
(A)
(B)
2.
(c)
particles have a high densitY
forces ofattraction are very strong
forces of attraction are very weak
(D)
particles canncbe easily compressed
Two particles have the following composi-
tions:
(D l0protons, l2neutrons, l0electons
(iD l0protons, l1 neutrons, l0electrons
Therefore, BOTH particles are
(A)
(B)
Which of the following processes does
NOT provide evidence in support of the
(c)
particulate nature of matter?
(D)
(A)
Osmosis
(B)
Diffusion
Filtration
Brownian motion
(c)
(D)
J.
5.
6.
anions
isotopes
cations
metals
th" number 17
In the notation "cl
t7
represents the
(A)
(B)
(C)
(D)
Which of the following mixtures are
arranged in order of INCREASING
charge
mass number
oxidation state
atomic number
particle size?
(A)
(B)
(C)
(D)
4.
Solutions,colloids,suspensions
Solutions,suspensions,colloids
Colloids,solutions,suspensions
Suspensions,colloids,solutions
7,
[RAM: O: 16; S:32]
(A)
(B)
(C)
(D)
Sulfuric acid is a stronger acid than
ethanoic acid (acetic acid) in aqueous
solution because sulfinic acid
(A)
(B)
is more corrosivethan ethanoic acid
is more concentrated than ethanoic
(c)
ionizes to a greater extent than
(D)
causes sugarto char whereas ethanoic
acid
What mass of oxygen atoms contains the
same number .9f moles as I 12 g of sulfur
atoms?
8.
0.56 g
5.60 g
56.00 g
560.00 g
Which ofthe following halogens is a liquid
at room temperature?
ethanoic acid
acid does not
(A)
(B)
(c)
(D)
Iodine
Bromine
Fluorine
Chlorine
L
-39
Sodium chloride has a high melting point
12.
'lonic bond formation'results from the
because
(A)
(A)
(B)
(c)
sodium has a high melting point
chlorine is a powerful oxidizing agent
dre crystals do notabsort heat readily
(B)
(D)
the ions are bound by strong
(C)
electrostatic forces
l0
(D)
A new element R shows chemical
properties similar to the element sodium.
What is the correct formula ofa compound
.
donation of electons from a nonmetal to a metal to achieve stability
donation ofelectrons from a metal to
a non-metal to achieve stability
attraction between the positively
charged ions of a metal and a pool
of electrons
sharing of electrons between the
atoms of a metal and non-metal
to achieve stabiliry
formed with R and sulfur?
13.
(A)
(B)
R,S
Rs2
RS
(c)
(D)
Sulfur and oxygen are in the same group
of the periodic table because
(A) they can react with each other
(B) they can form covalent compounds
(C) they have the same number of
LS,
electrons in their outer shell
(D) the atomic number of sulfur is I 6 and
It.em 11 refers to the following diagram.
the relative atomic mass ofgxygen
is 16
Weak.t
,l
boad
-
Strong
14.
An acid can be defined as a
(A)
(B)
(c)
(D)
15.
11
The diagram above represents the arrangement of atoms in
proton donor
neutron donor
proton acceptor
neutron acceptor
A salt was heated with a certain base. The
gas evolved turned moist red litmus paper
blue. Which ofthe following ions does the
salt contain?
(A)
(B)
sulfur '
(A)
(B)
benzene
(c)
graphite
diamond
(c)
Nitrate(V;
Ammonium
Sulfate(VI)
(D)
Carbonate
(D)
4
L6.
number
The caloium ion has an oxidation
of +Zbecause thi calcium atom has
(A)
(B)
two elecEons in its otrtermostshell
six electrons in its outermost shell
(c)
two allotroPes
two isotoPes
(D)
The rOlative atomic mass of carton is
88 'g
and that of oxygen is 16' Therefore,
12
18
of carbon dioxide consists of
3.1 moles of carbon dioxide
(A)
(B)
12 moles of carbon and32moles of
oxygen
(c)
I moieof carbon atoms and2 moles
(D)
2 moles of carbon atoms and 4 moles
of oxYgen atoms
Item 17 refers to the following graph which
t*-tttt"nariationof thepHof themixturc
a fixed
formea wn* Solution Y is added to
volume of Solution X'
of oxygen atoms
A piece of metal is reacted with an acid
to produce hydrogen gas' Which 9f thl
19
foliowing procedures should be employed
in orderio increase the rate ofthe reaction?
pE
L
'
tr.
m.
Increasing the temperatnre at which
the reaction is carried out
Subdividingthe Piece of metal
Reducing the concentration of the
acid
(A)
(B)
I and II onlY
I and.[II onlY
II and III onlY
I, II and III
1
Voldme ofYadded(cm)
(c)
t7.
x
'::
'B
(D)
Which ofthe following pairs of substances
can represent solutions X andY?
Y
(A)
HCl.,
Ito
(B)
KOH({)
HrO
(c)
HC\,
KOH("q)
(D)
KOH("q)
HCI(,q)
20
Which of the following pairs of elements
exhibit allotroPY?
(A)
(B)
(c)
(D)
2L.
Sulfur and carbon
Sulfur and nitrogen
Carbon and chlorine
Nitrogen and PhosPhorus
In which of the following processes is
fractional distillation NOT used?
(c)
Refining of crude Petoleum
Conversion of alkanes into alkenes
Separation of liquid airinto nitrogen
(D)
Separation of ethanol from a
(A)
(B)
and oxYgen
fermentation mixture
-5Items 22-24 refer to the following' 25
information
Which of the following substances reacts
with an acid, liberating a gas which turns
lime water'milky'?
A piece of calcium was added to some
distilled water in a container and the
(A)
following observations were recorded-
(B)
l.
(D)
2.
3.
4.
22.
Methyl orange
Barium chloride
Calcium carbonate
Magnesium metal
(c)
The reaction w:ls rapid.
Bubbles of gas evolved.
A cloudy suspension formed.
The temperature increased.
Item 26 refers to the following energy
profile diagram..
The gas produced is expected to
Products
(A) relight a glowing splint
(B) give a'pop'with a lighted splint
(C) turn acidified aqueous potassium
(D)
>1
EO
L
i)
tr
Rcaden8
H
dichromate green
decolorize acidified aqueous
potassium man ganate(Vl I)
23
The 'cloudy' susfension was pioduced
because in water
Rcaction path
26.
(A) calcium hydroxide is slightly soluble
(B) calcium oxide is slightly soluble
(C) calcium carbonate is insoluble
(D) calcium sulfate is insoluble
24
A sample of the suspension was filtered
and the pH of the filtrate determined.
The expected pH of the filtrate should be
approximately
From the enerry profile diagram above, it
can be said that'the reactants
(A)
(B)
(C)
(D)
27.
cannot be converted into producG
absorb energy to form products
give out heat when they react
give enerry to products
The oxidation numberofsilicon inNarSiO,
ls
(A)
(B)
I
2
(A)
(B)
3
(c)
3
5
(c)
(D)
4
7
(D)
I0
-628.
When a concentrate'd solution of sodium
chloride is electrolysed using carbon
32'
preparation of ammonia is
electrodes,
(A)
(B)
(c)
(D)
(A)
(B)
chlorine is liberated at the anode
sodium is liberated at the cathode
the solution at the anode is aoidic
the solution atthe cathode is acidic
(c)
(D)
33
29
(B)
concentration of the rcactants
temperahre of the reacting system
ener5/ change associated with the
reaction
(c)
(D)
Which of thg following elements form an
' acidic oxide when burnt in air?
I
tI
m
Aluminium
(A)
I and II
I and III
(B)
(c)
(D)
31.
Carbon
35.
II and III
I, II and III
The above exPeriment shows that
magnesiup oxide is
(A)
(B)
acidic
(c)
(p)
neutral
insoluble
basic
(c)
Copper
Aluminium
Potasiium is ametal. From'this information
ONLY it may be deduced that potassium
(A)
(B)
is soft
(c)
has a low melting Point
is a good conductor of electricitY
36.
is very reactive
An alloY is
(A)
(B)
atype of element
a mixture of metals
(c)
a compound of inetals
the same as aluminium
(D)
When a piece ofmagnesium ribbon is bumt
in air, magnesium oxide is formed' It is
solution, which hrrns blue.
Zinc
Iron
(D)
Nitrogen
then placed in water and tisted with litmus
(A)
(B)
(D)
34
30
Which of the following metals will NOT
acid?
ofi catalYst
pnesence
calcium oxide
calcium chloride
anhydrous coPPer sulfate
concentrated sulfuric acid
displace hydrogen from dilute hydrochloric
The rate of a chemical reaction does NOT
depend on the
(A)
A suitable drying agent for a laboratory
Which of the following gases forms white
fumes when a glass rod, dipped in aqueous
ammonia, is held in it?
(A)
(B)
Ammonia
Nitrogen(IV) oxide
(c)
.Hydrogen
(D)
Steam
chloride
-7Items 37-38 refer to the extraction of
aluminium from bauxite.
37.
38.
40
Which of the following is/are true of non
metals?
I.
They are reducing agents.
Cryolite is used
II.
They are capable of replacing
(A)
to lower the melting point of the
III.
(B)
(C)
(D)
hydrogen in acids to form salts.
They are generally poor conductors
of elecricity.
as a source of additional ions
electrolye
(A) III only
(B) I and II only
(C). I and III only
(D) I, II and III
to protect the carbon anode
as the electrolye
The carbon anode tends to
(A)
(B)
(C)
(D)
41. The main substances responsible for acid
reactwith the cryolite
be oxidized by orygen
dissolve in the electolyte
ratn are
(A)
(B)
be oxidized by fluorine frorn cryolite
chlorofluorccarbons
sulfur dioxide and sulfur trioxide
lead compounds in exhaust fumes
carbon dioxide and carbon monoxide
(c)
39
Which of the following elements is an
(D)
important constituent of chlorophyll?
(A)
(B)
(C)
(D)
42.
Iron
Copper
Calcium
Magnesium
Which of the following elements is the
MOST electropositive?
(A)
(B)
Zinc
(c)
Copper
Magnesium
(D)
Aluminium
Item 43 refers to the following sequence of reactions involving iron compounds, where I, II, III
and IV represent the progressive stages in the sequence.
FeCO, --i--
43.
-r-i> F"r(SO),
A suitable reagent that could be used at stage IV is
(A)
(B)
(c)
(D)
a
FeO -pFerO,
steam
hydrogen
solid copper oxide
aqueous sodium hydroxide
-+Fe(OH[
-844
Which of the following features is NOT tnre of all homologous
series of compounds?
The members of the.series have
(A)
(B)
(c)
(D)
similar chemical ProPerties
the same emPirical formula
the same functional grouP
the same general formula
Item 45 refers to two organic compounds, I and II,
structures:
EEE
lll
E-C-C-C-E
lll
EOEE
Compound
45.
I
EEE
lll
E-C-c-c-oE
lll
EEE
Compoundll
Compounds I and II are known as the
(A)
(B)
(c)
(D)
isomers of CrHrO
isotopes of C,H.O
of moleoular formula CrHrO' with the following
condlnsed formulae of CrHP
molecular formulae of CrI\O
-946.
The compound 2-bromobutane has a'
Items 49-50 referto the following general
structural formula of
formulae.
E
I
(A)
EEE
rll
E-C - c -c -c -E
tll
I
Br
EEII
HE
ll
E
(B)
,)"
I
(c)
CFL
nzn
(B)
c.H2r*2
(c)
CnH2'*loH
(D)
c.H2,*'cooH
'
c-c.-E
I
Br
E
(A)
tl
E.
E
In answering Items 4F50, each option may
be used once, more than once or not at all.
EEE
tll
E-C - c -c -c
rtl
E. BrEE
I
-E
49
Which of the above is the formula of a
compound that undergoes a substitution
reaction with bromine?
50
Which of the above is the formula of a
E
I'
E E_C_E
lll
E
compound which burns with a sooryflame?
(D) E-C-'C-c-E
ll,l
EBrE
47.
51
Which of the following about ethane is
corect?
I.
Both burn in air to give carbon
E
II.
Alkanes undergo substitution
H
(A)
C=C
Structural formula
E
dioxide and water.
reaotions whilst alkenes undergo
E
(B) Molecular formula- CrHo
(C). Empiricalformula-CH,
(D) General formula- Cn 4,*,
48
Which ofthe following statements aretrue
ofalkanes and alkenes?
. addition reactions.
m.
whilst alkenes are unsaturated
hydrocarbons.
(A)
(B)
Which of the following substances would
(c)
an alkane react?.
(D)
(A) Chlorine
(B) Hydrogen
(C) Ethanol
(D) Steam
Alkanes.are saturated hydrocarbons
I and U only
I and III only
Il and III only
I, II and III
-t0Items 52-53 refer to the following options.
(A;
Addition
(B)
Isomerism
(c)
Esterification
Polymerization
(D)
In answering Items 52-53, each option may be used once, more than once or not at all
52.
What is the name of the catalysed reaction which uses an alcohol and an organic acid?
53.
What is the name ofthe process in which proteins are formed from amino acids?
54.
Which of the following equations represents the fermentation of sugars, using glucose as the
substrate?
55.
(A)
C6H.2O6-2C2H5OH +2CO2
(B)
6CO, + 6HrO --+ C6H,2O6 + 602
(c)
C.H,rOr.t- 60z* 6CO, + 6H2O
(D)
C6HEO6 * CrH,rO.+ C,rHrrO,, + H2O
When large alkane molecules are cracked,
the products are a mixture of
(A)
(B)
small alkane molecules
small alkene molecules
(c)
large and small alkane molecules
(D)
small alkane and small alkene
molecules
s6.
Which.of the following ar€ reactions of
ethanoic acid?
It forms a salt with aqueous sodium
hydroxide.
II
It liberates carbon dioxide from a
III
carbonate.
It liberates hydrogen on contact with
a strongly electropositive metal.
(A)
(B)
J
I and II only
I and III only
(c)
'll and III only
(D)
I, II and III
- tl57
Which of the following compounds can
. decolorize potassium manganate(V[f?
(A)
58.
(A)
(B)
(C)
(D)
EE
ll
E-C-C-E
EE
tt
59
Polysaccharides
It is better to use soapless detergents for
because soapless detergents
c
E
(A)
(B)
E
EEE
(c)
Polyalkenes
Polyamides
Polyesters
washing in hard water than it is to use soap
E
E
(B)
Which of the following.is NOT formed
from condensation polymerization?
tll
E-C-C-C-E
(c)
are cheaperttran soaps
are more biodegradable tlran soaps
are more soluble in hard water than
(D)
form an insoluble scum in hard water
soaps
tll
EEE
60.
HE
(D)
tl
E-CrC-E
ll
El
E_C-H
Which ofthe following hydrocarbons is the
MAJORconstituent of natural gas?
(A)
(B)
Methane
(c)
Ethane
Butane
(D)
Propane
I
E
END OFTEST
IF YOU FINTSH BEFORE TrME IS CALLED, CHECKYOUR WORK ON THrS TEST.
a