coDE
FORM TP 2017004
01212010
JANUARY 20I7
CARIBBEAN EXAMINATIONS COUNCIL CARIBBEAN SECONDARY EDUCATION CERTIFICATE@ EXAMINATION CHEMISTRY Paper 01 - General ProficiencY
t 18
hour 15 minutes
JANUARY 2017 (p.mJ
READ THE FOLLOWING INSTRUCTIONS CAREFULLY.
I
l5 minutes to answer them.
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I
This test consists of 60 items. You will have
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2
In addition to this test booklet, you should have an answer sheet.
3
Each item in this test has four suggested answers lettered (A), (B), (C), you are about to answer and decide which choice is best.
4
hour and
(D).
Read each item
On your answer sheet, find the number which corresponds to your item and shade the space having the same letter as the answer you have chosen. Look at the sample item below. Sample ltem
The Sl unit of length is the
(A) (B) (C) (D)
Sample Answer
o
metre newton
@
second
kilogram
The best answer to this item is "metre", so (A) has been shaded. erase it completely before you
fill
in your new choice.
5.
If you want to change your answer,
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 later.
7
You may do any rough work in this booklet.
8
Figures are not necessarily drawn to
9
You may use a silent, non-programmable calculator to answer items.
scale.
:er.
DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO EilE ]l-tr
Copyright @ 2015 Caribbean Examinations Council All rights reserved.
SO.
-2In which of the following situations
1.
4.
is
Brown ian motion demonstrated?
(B)
Pollen grains moving at random in water The scent of Perfume moving from
(c)
ofa room to another The swelling of red beans when
(A)
(A) (B)
one Part
(D)
soaked in water Loss of heat frorii a hot body to body
a
5.
cold
Item 2 refers to the four sets of properties frr-ented bY the oPtions, A, B, C and D,
2
Approximate
(A) (B)
+l
I
0
I
(c)
I
0
(D)
0
2
6.
Mass
(c)
Lead sulfate Lead nitrate Lead chloride
(D)
Lead carbonate
Which of the following oxides shows both acidic and basic ProPerties?
(A) (B)
lron(ll) oxide
(c)
Calcium oxide Aluminium oxide
(D)
below.
Relative Charge
Which ofthe following compounds is soluble in cold water?
Which of the foltowing statements BEST describes the difference between an atom and
an ion?
(A) (B)
Which of the properties above refer to
a
(c)
From thetable below, which ofthe substances is represented by the options, A, B, C and D,
MOST likelY sodium chloride?
Substance
Boiling Point
An atom is electrically neutral but an ion is PositivelY charged. An atom is electrically neutral but an ion is negativelY charged' An atom contains equal numbers
of
protons and electrons whereas an ion contains more electrons than
neutron?
3
Sodium oxide
(D)
protons. An atom contains equal numbers
of
protons and electrons whereas an ion contains unequal numbers of protons and electrons.
Electrical ConductivitY
('c)
Solid State
Aqueous State
(A) (B)
1465
Yes
444
No No
(c)
2600
Yes
No No
(D)
-35
No
Yes *1r
r-:rl ON TO THE NF,XT PACE
-3and chlorine. Item 7 refers to the foltowing equation which represents the reaction between ethene
H
H
c H
7
.
(c) (D)
l C
C
I
H
cI
I
H
I
ct
Addition Substitution Addition polymerization Condensation polymerization
Items
Which of the following is classified as a neutraloxide?
(A) (B)
(c) (D)
9
H
What type of reaction does the equation represent?
(A) (B)
8.
c
H
(c) (D)
concentrated hydrochloric ac id, a green ishyellow gaswhich bleaches moistred litmus paper is given off.
Sulfur dioxide Carbon dioiide Carbon monoxide
Period I Group Period I Group Period 3 Croup Period 3 Group
refer to the following
When a compound is treated with
Sodium oxide
An element, X, has an electron configuration 2,8,1. At which of the following positions is the element in the Periodic Table?
(A) (B)
10-ll
information.
10.
The gas given
(A) (B) (C) (D)
I
II
off
is
chlorine ammonia sulfur dioxide nitrogen dioxide
I
II 11.
The concentrated hydrochloric acid acting
(A) (B)
as
an acid
(c)
a catalyst a reducing agent
(D)
an oxidizing agent
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GO ON TO THE NEXT PAGE
is
-4t2
Two solutions are to be mixed in order to demonstrate endothermic change. Which of the following techniques would be MOST appropriate?
(A) (B) (C) (D) 13
Taking mass readings Taking temperature readings Monitoring the pH ofthe solutions Carefullyobservingcolourchanges
t4
Ethanoic acid reacts with ethanol to form
an ester and water. How many moles of ethanoic acid are required to produce 0.5 mol of the ester? (A) (B)
0.05 0.5
(c)
I
(D)
2
Crystals of sodium chloride are BEST described as
(A) (B)
(c) (D)
ionic metallic molecular macromolecular
Item 15 refers to the following diagram
Weak bond Strong bond
15.
The diagram above represents the arrangement of atoms in
(A) (B)
sulfur graphite
(c)
benzene
(D)
diamond
GO ON TO THE NEXT PACE
5
16
Which ofthe following statements regarding
20
Which of the following techniques or
the effect of a catalyst on a reaction is
processes may be used to separate a mixture
INCORRECT?
of plant pigments?
(A)
It
has no effect on the yield
(A) (B) (C) (D)
of
products.
(B)
It is unchanged chemically on
(c)
completion of the reaction. It allows equilibrium to be attained
Centrifugation Solvent extraction Fractionaldistillation Paper chromatography
more rapidly-'in a reversible (D)
Items?l-22 refer to the following
reaction. It lowers the energy of the reactants
information.
so that the reaction occurs at a
A solution of iron(ll) sulfate
faster rate.
17.
In which of the following
until in EXCESS to a solution of barium nitrate. The precipitate produced was filtered off and water was added to the residue in the filter paper.
compounds
does hydrogen have a negative oxidation number?
21.
(A)
CHo
(B)
NaH
(A) (B)
yellow brown
(c)
NH,
(c)
green
(D)
white
(D)
HrO,
22. 18.
From which of the following substances can a solid be obtained by the process of
Gels Emulsions
(c)
Foams Suspensions
(D)
The colourofthe precipitate produced was
Water was added to the residue to
(A) (B) (C) (D)
sedimentation?
(A) (B)
was added
23
dissolve the precipitate prevent further reaction puriff the precipitate
dilute the filtrate
The atoms of element Y contain l9 electrons.
The chemistry of element Y willbe similar to 19
Which of the following gases shows NO reaction with moist litmus paper?
(A) (B) (C) (D)
Ammonia Hydrogen Sulfur dioxide Hydrogen sulfide
(A) (B)
(c) (D)
aluminium magnesium bromine lithium is/tl
a
ffiE
GO ON TO THE NEXT PAGE
-624.
Which ofthe following halogens is a liquid at room temperature?
(A)
Iodine
(B)
Fluorine Bromine Chlorine
(c) (D)
25.
26.
(A) (B) (C) (D)
During the reaction..between ethanol and ethanoic acid, a small quantity of
27
concentrated sulfuric acid is added to
(A) (B) (C) (D)
Which of the following reactions occurs between propene and bromine?
oxidize the ethanol catalyse the reaction dehydrate the ethanol hydrolyse the products
Addition Substitution Precipitation Condensation
FeCl, and FeCl, are two chlorides
of
iron.
Which of the following statements about these two chlorides of iron is/are TRUE?
II
The percentage of iron by mass in the two chlorides is different. The colours of the aqueous solutions of the two chlorides are different.
III.
The aqueous solutions of the two chlorides do not conduct
electricity.
(A) (B)
(c) (D)
28.
29.
When solid lead nitrate is heated, it decomposes giving BALANCED equation for this reaction is
(A)
2Pb(NOJz(s)
(B)
Rb(NOr)r(s) -+ PbO(s; + NOr(S) + O,(g)
(C)
Pb(NOr),(s)
+
(D)
2PbCIO3)r(s)
+
+
I only
III only I and Il only I and III only
off nitrogen(lV) oxide and oxygen.
The
2PbO(s) + 4NO,(g1+ Or(B)
PbO(s) + 2NO,(g) + Or(g)
PbO(s)+ zNOr(B) + Or(s)
Which of the following compounds yields a brown gas and a black solid residue on heating?
(A) (B) (C) (D)
Sodium carbonate Copper hydroxide Sodium nitrate Copper nitrate
iur1r.
GO ON TO THE NEXT PAGE
-7 30
Items 32-33 refer to the following diagrams which represent bonding as occurs in certain compounds.
Which ofthe following metals are extracted from their ores by reduction oftheir oxides with carbon?
(A) (B)
Aluminium and magnesium
(c)
Zinc and aluminium Iron and zinc
(D)
31.
-
it
Lead and magnesium
(A)
x a
(B)
a
During the electrolysis of aqueous copper(l I)
sulfate solution using inert electrodes, the ions migrating to the cathode are
(A)
x
Cu2. (aq) and H* (aq)
(B)
H* (aq) and OH- (aq)
(C)
SO.F (ag) and OH-(aq)
(D)
Cu2* (aq) and SOn2-(ag)
x
a
C
(c)
x
a x
x
(D)
o
In answering ltems 32-33, each option may be used once, more than once or not at all.
32.
33.
Which of the diagrams illustrates bonding in chlorine? fr., Which of the diagrarirs illustrates bonding in oxygen?
a
ffi
GO ON TO THF. NF,XT PAGF,
-834.
The rate of a chemical reaction does NOT
Items 37-38 refer to the following acids.
depend on the
(A) (B)
(c) (D)
(A) (B) (C) (D)
of a catalyst concentration of the reactants temperature of the reacting system energy change associated with the pnesence
reaction
Sulfuric acid Hydrochloric acid
Nitric acid Ethanoic acid
ln answering ltems 37-38, a particular acid may be used once, more than once, or not at
all. Items 3$-36 refer to the following reactions.
(A) (B)
(c) (D)
Hydrolysis Dehydration Saponification Esterification
37.
Which acid functions as a dehydrating agent when concentrated?
38.
Which acid reacts with copper to produce an acidic, reddish-brown gas?
39.
Which of the following ionic equations
In answering ltems 35-36, each reaction may be used once, more than once, or not at all.
involves oxidation? 35.
In which reaction is ethane produced from
(A) 52--2e-+ S (B) Clr+ 2e- + 2Cl(C) 2H* + 2e- --> H, (D) Na* * e- -+ Na
ethanol?
36.
Which rcaction involves the boiling ofa fat or oil with aqueous sodium hydroxide (caustic soda)?
40
Which of the following methods is used for the extraction of aluminium?
(A) (B) (C) (D)
Electrolysis of its molten oxide Reduction of its oxide using coke Electrolysis of its aqueous chloride Reduction of is oxide using carbon monoxide
ivl
CO ON TO THE NEXT PAGE
-9Item
4l
refers to the fully displayed structural formulae of compounds Q, R and S shown below.
H I
H
/
I
c
c I
I
H
H
H
o
H
/
I
H
C
o-H
C
C
I
H
H
o
I
H
\lo-c-H
H
c
H I
c
H I
c
I
I
I
H
H
H
- o -H
I
H
aRs 4t
Which of the following correctly identifies the homotogous series to which each compound belongs?
aRs (A) (B)
(c) (D)
42
43
Ester
Acid Alcohol Acid
Acid Alcohol
Alcohol
Ester Ester
Acid Alcohol
Ester
Which ofthe fol lowing metals neither reacts
44.
with water nor displaces hydrogen from
Which ofthe followingaqueous solutions will produce a yellow precipitate with aqueous
dilute hydrochloric acid?
potassium iodide?
(A) (B) (C) (D)
(A) (B) (C) (D)
Iron
Zinc Copper
Calcium
The existence of rnillions of orgarric compounds is due primarily to the ability of t.
It was found that magnesium metaldisplaces
zinc ions in zinc sulfate, while zinc metal displaces lead ions in lead sulfate.
multiple bonds ring structures branched chains 45
(A) (B)
(c) (D)
Sodium carbonate
Item 45 refers to the following information.
carbon to form
It. III.
Lead nitrate
Zinc sulfate Calcium chloride
I and Il only I and III only Il and III only I, II and III
What is the order of reactivity, from most reactive to least reactive?
(A) (B)
(c) (D)
Pb,Zn and I!!g Mg,Zn and FB Zn,Mgarrd Pb Zn,Pb arrd Mg
i!r'l!*
ilff{
rrfif
GO ON TO THF, NF.XT PAGE
- l0Items
4647 refer to the following
organic
50
compounds.
(A) (B) (C) (D)
Which ofthe following structures represents a compound that can react with an alcohol to produce a sweet smelling liquid?
Natural gas Propene
H
H
Ethanol
c
(A)
Vinegar
HIIH
rll
all.
(B)
46.
Which ofthe compounds can be hydrated?
47.
Which of the compounds has a pH less than
H-c-c-c-o-H
lll
EHH HII
(c)
7?
48.
H
carbon monoxide reacts with iron(lll) oxide?
(D) Oronly Fe only CO, and CO onlY CO, and Fe only
I.
Effervescence occurs.
A gas is evolved with a Pungent
III.
odour. A gas is evolved which turns
limewater milky.
(A) I and II only (B) I and III onlY (C) II and III onlY (D) I,ll and III
-C_
/
/t
c
o
-H
o H
c
H
o
I
-C-H l H
A piece of limestone is treated with dilute hydrochloric acid. Which of the following would be observed?
II.
H
I
I
51. 49
o
ll H-c-cll HH
Which of the following is produced when
(A) (B) (C) (D)
H
H
4H7,
each compound than once or not at more may be used oncO,
In answering ltems
C
52.
Steel is often used in place of iron because
(A) (B)
has a lower melting point
(c)
is stronger
(D)
is cheaper
it
is more susceptible to corrosion
A solution has a pH of l. This solution would be expected to react with
(A) (B)
(c)
zinc metalto produce hydrogen hydrochloric acid to produce chlorine zinc metal to produce a solution of
(D)
pH l0 hydrochloric acid to produce a salt iland water
GO ON TO THF, NEXT PAGE
53.
Which of the following is the reason for adding cryolite to pure alumina in the extraction of aluminium by electrolysis?
(A) (B)
(c) (D)
lt57
(A) (B)
It lowers the melting point. It reduces the resistance. It reduces the current. It prevents damage.
(c) (D)
58. 54.
What type of reaction occurs when zinc metal is added to copper sulfate solution?
(A) (B) (C) (D)
series have
Neutralization Displacement
densities boiling points chemical properties physical properties
Glucose is converted to starch or cellulose by
(A) (B) (C) (D)
Combustion
condensation polymerization
addition polymerization oxidation and reduction dehydrogenation
Decomposition 59
55.
ALL members of a homologous similar
A formula of
a gas
with
a
distinctive colour
Which of these compounds will react with bromine solution only if light is present?
is
(A) (B)
(c) (D)
(A) (B) (c) (D)
SO,
NO, CO, NH, 60
56
Which ofthe following is a natural source
of
CrH, CrHn
crHu CuH,
During the manufacture of ethanol by fermentation, the gas evolved
hydrocarbons?
(A) (B) (C) (D)
(A) (B) (C) (D)
Carbon Methane Hydrogen Petroleum
END OF TEST a
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burns with a blue flame tums limewater cloudy relights a glowing splint tums petassium dichromate green
flzlr
IF YOU FINISH BEFORE TIME IS CALLED, CHECK YOUR WORK ON THIS TEST.