MINISTRY OF EDUCATION, SINGAPORE
in collaboration with
UNIVERSITY OF CAMBRIDGE LOCAL EXAMINATIONS SYNDICATE
General Certificate of Education Ordinary Level
SCIENCE (CHEMISTRY, BIOLOGY) 5078/01
Paper 1 Multiple Choice October/November 2014
1 hour
Additional Materials: Multiple Choice Answer Sheet
READ THESE INSTRUCTIONS FIRST
Write in soft pencil.
Do not use staples, paper clips, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE ON ANY BARCODES.
There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.
Read the instructions on the Answer Sheet very carefully.
Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be,done in this booklet.
A copy of the Data Sheet is printed on page 19.
A copy of the Periodic Table is printed on page 20.
The use of an approved scientific calculator is expected, where appropriate.
This document consists of 20 printed pages.
,,,..,
�-��n
__
SMII __,,
Singapore Examinations and Assessment Board
© UCLES & MOE 2014 1B14 11_5078_01/FP [Turn over
Oct/Nov 2014 Paper 1 (1)
1 The diagrams show two methods of collecting gases.
measuring gas
/
__ gas jar
cylinder
water
gas---+-===='=:/
method 1 method 2
Which ro� gives the properties of a gas which can be collected by both methods?
property 1 property 2
A insoluble in water denser than air
B insoluble in water less dense than air
C soluble in water denser than air
D soluble in water less dense than air
2 The diagrams show the electronic structures of four elements.
0
element 1 element 2 element 3 element 4
Which elements are metals?
A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
© UCLES & MOE 2014 5078/01 /O/N/14
Oct/Nov 2014 Paper 1 (2)
3 The particles in substance Z are widely spaced and able to move freely.
Z changes to a state in which the particles are in contact but still able to move freely.
What is this change called?
A condensation
B evaporation
C freezing
D melting
4 The nucleon number and proton number of an atom of Xand an atom of Yare shown .
X y
nucleon number 39 40
proton number 19 18
Which statement about Xand Yis correct?
A An atom of Xhas fewer electrons than an atom of Y.
B An atom of Xhas fewer neutrons than an atom of Y.
C Xis above Yin the same group of the Periodic Table.
D Xis in the same period in the Periodic Table as Y.
© UCLES & MOE 2014 5078/01 /O/N/14 [Turn over
Oct/Nov 2014 Paper 1 (3)
5 The electronic structures of two atoms X and Y are shown.
X and Y combine together to form a compound.
Which row describes the type of bonding and the formula of the compound?
type of bonding formula
A covalent Y2X
B covalent YX2
C ionic Y2X
D ionic YX2
6 Ethane, C2Hs, and ammonia, NH 3 , are covalent compounds.
The dot and cross diagrams of these compounds are shown.
H Xe
Xe
H
H;c:c :H
Xe X•
H H
Which statements are correct?
1 A molecule of ethane contains twice as many hydrogen atoms as a molecule of
ammonia.
2 An uncombined nitrogen atom has five outer electrons.
3 In a molecule of ethane, the bond between the carbon atoms is formed by sharing
two electrons, one from each carbon atom.
A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3
© UCLES & MOE 2014 5078/01 /O/N/14
Oct/Nov 2014 Paper 1 (4)
7 An equation is shown.
xNa + yCl 2 ➔ zNaCl
Which numbers will correctly balance this equation?
X y z
A 1 1 2
B 1 2 2
C 2 1 1
D 2 1 2
8 20cm 3 of ethene are reacted with 70cm 3 of oxygen.
The equation for the reaction is shown.
What is the total volume of gas remaining at the end of the reaction?
(all volumes are measured at r.t.p.)
A 40cm3 B 50cm 3 C 80cm 3 D 90cm3
© UCLES & MOE 2014 5078/01 /O/N/14 [Turn over
Oct/Nov 2014 Paper 1 (5)
9 Aqueous sodium hydroxide and dilute hydrochloric acid are reacted together.
The reaction is exothermic.
Both the sodium hydroxide and the hydrochloric acid are initially at room temperature.
Which graph shows how the temperature changes when aqueous sodium hydroxide is added to
the hydrochloric acid until the alkali is present in excess?
A B
temperature temperature
________
,__ �
volume of sodium hydroxide volume of sodium hydroxide
C D
temperature temperature
volume of sodium hydroxide volume of sodium hydroxide
© UCLES & MOE 2014 5078/01/O/N/14
Oct/Nov 2014 Paper 1 (6)
10 Calcium carbonate is placed in a flask on a top-pan balance and dilute hydrochloric acid is
added. The total mass of the flask and its contents is recorded every ten seconds.
256
255
254
total mass
of flask
and contents/ g 253
251
2504---.-------.-----,----,--r-----r---.-
10 20 30 40 50 60 70
time/s
At which of the following times is the reaction fastest?
A 10s B 20s C 40s D 50s
11 In which reaction is the underlined substance reduced?
A C(s) + CO2(g) ➔ 2CO(g)
B Clz(g) + 2r(aq) ➔ h(aq) + 2Cr(aq)
C .Mg(s) +CuO(s) ➔ MgO(s) + Cu(s)
2 +
D Zn(s) + 2W(aq) ➔ Zn (aq) + H 2 (g)
12 The oxide of an element M was added separately to hydrochloric acid and aqueous sodium
hydroxide.
The word equations for the reactions are shown.
M oxide + hydrochloric acid ➔ M chloride + water
M oxide + sodium hydroxide ➔ no reaction
Which row describes M and its oxide?
M M oxide
A metal acidic
B metal basic
C non-metal amphoteric
D non-metal acidic
© UCLES & MOE 2014 5078/01 /O/N/14 [Turn over
Oct/Nov 2014 Paper 1 (7)
13 What does not increase across a period of the Periodic Table?
A the number of electron shells
B the number of outer shell electrons
C the number of protons
D the nucleon number
14 Which row shows the properties of the element bromine?
colour state at room effect on potassium
temperature iodide solution
A green gas turns dark brown
B grey-black solid turns dark brown
C red-brown liquid turns dark brown
D red-brown liquid turns light red-brown
15 Metals W, X, Y and Z are placed in salt solutions as shown in the table.
result of placing metal in solution of
metal
salt of W salt of X salt of Y salt of Z
w no reaction X displaced Y displaced no reaction
X no reaction no reaction no reaction no reaction
y no reaction X displaced no reaction no reaction
z W displaced X displaced Y displaced no reaction
What is the order of reactivity of the metals from most reactive to least reactive?
A X➔Y➔W➔Z
B Y➔W➔Z➔X
C Z➔W➔Y➔X
D Z➔Y➔X➔W
16 Which oxide is reduced to its metal by heating it in a stream of hydrogen gas?
A aluminium oxide
B calcium oxide
C copper(II) oxide
D magnesium oxide
© UCLES & MOE 2014 5078/01 /O/N/14
Oct/Nov 2014 Paper 1 (8)
17 Heated copper reacts with oxygen to produce copper(II) oxide.
The percentage of oxygen in air can be found by passing air over heated copper.
In the apparatus shown, the plungers are alternately pushed so that air passes over the hot
copper.
The original volume of air was 50.0 cm3.
plunger copper
syringe X heat syringe Y
Which graph shows how the volume of air changes during the experiment?
A B
50 100
40 80
volume 30 volume 60
of gas of gas
/cm 3 20 40
/cm 3
10
20
0
time time
100 C 50 D
80 40
volume 60 volume 30
of gas of gas
/cm3 40 /cm3 20
20 10
0
time time
© UCLES & MOE 2014 5078/01 /O/N/14 [Turn over
Oct/Nov 2014 Paper 1 (9)
18 Petroleum is fractionally distilled to produce useful fractions.
Which row matches the fraction to its use?
fraction use
A bitumen fuel in cars
B lubricating oils for making waxes and polishes
C paraffin (kerosene) for making roads
D petrol (gasoline) aircraft fuel
19 Two gases, X and Y, have the following properties.
X dissolves in aqueous sodium hydroxide but Y is insoluble
Y burns in excess oxygen to give X and water only
Y does not decolourise aqueous bromine
What are X and Y?
X y
A carbon monoxide ethene
B carbon monoxide ethane
C carbon dioxide ethene
D carbon dioxide ethane
20 Which compound forms ethanoic acid when it is oxidised?
A carbon monoxide
B. ethane
C ethanol
D ethene
© UCLES & MOE 2014 5078/01/O/N/14
Oct/Nov 2014 Paper 1 (10)
