Clevedon School
Science Department
Chemistry C1 Interim Test Higher
Write all answers on lined paper. Do not write in this booklet
11 6
Zoe and Olivia test three fuels. Look at the diagram. It shows the apparatus they use to measure the energy given out by the fuels. thermometer
copper can
100 g water
spirit burner liquid fuel
(a) Look at the table. It shows their results. fuel
temperature of water at start in °C
temperature of water at end in °C
mass of fuel burned in grams
meths
18
38
1.1
propanol
22
42
0.9
petrol
16
36
0.6
Which fuel gives out the most energy for each gram of fuel used? ................................................................................................................................................... Explain your answer. ................................................................................................................................................... .............................................................................................................................................. [3] (b) Look at the results for petrol. Burning 0.6 g of petrol transfers 8400 J of energy. Calculate the energy transferred per gram of petrol. ................................................................................................................................................... ................................................................................................................................................... [1]
answer ............................... J/g © OCR 2011
Turn over for the remainder of question 6
[Total:3]
13 7
Look at the displayed formulas of some compounds.
H
H
H
C
C
H
H
H
H
ethane
H C
H C
H H
H
C
C
H
H
O
H
ethanol
H C
H
H
H
C
C
H
Cl n
H
propene
poly(chloroethene)
(a) Propene is an unsaturated hydrocarbon. (i)
What is meant by unsaturated? ...................................................................................................................................... [1]
(ii)
Bromine water can be used to test for unsaturation. Bromine water is added to the hydrocarbon. What would you see when bromine water is added to an unsaturated hydrocarbon? ...................................................................................................................................... [1]
(b) Poly(chloroethene) is a polymer. It is made by polymerisation. (i)
What are the conditions needed for polymerisation? ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [2]
(ii)
Draw the displayed formula of the monomer, chloroethene.
[1] [Total: 5] Š OCR 2011
Turn over
14 8
Look at the table. It shows information about some fuels.
fuel
energy value in megajoules per kg
availability
cost in £ per kg
state
A
48.0
good
£1.30
liquid
B
49.0
limited
£0.80
liquid
C
89.5
good
£0.33
solid
D
37.0
good
£1.30
gas
(a) Which fuel is best for powering a car? ........................................................................................
Explain your answer. ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] (b) Methane, CH4, is a fuel. Methane burns in oxygen, O2. Carbon dioxide and water are made. Write a balanced symbol equation for this reaction. .............................................................................................................................................. [2] [Total: 4]
© OCR 2011
9. The air in our atmosphere contains oxygen (21%), nitrogen (78%), and carbon dioxide (0.035%) as well as water vapour and very small amounts of other gases. The levels of oxygen, nitrogen and carbon in the present day atmosphere stay roughly the same, although levels of oxygen and carbon dioxide can be changed by man’s activities. It is thought that the present day atmosphere evolved over millions of years. Describe the theory that has been proposed by scientists to explain how this happened and describe how man’s activities have begun to change the composition of the atmosphere. The quality of written communication will be assessed in your answer to this question. ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ……………………………………………………………………………………… [6 marks]
12 Section B – Module C1 6
Coal, crude oil and natural gas are non-renewable fuels. (a) Crude oil is a non-renewable fuel. What is meant by non-renewable? ................................................................................................................................................... .............................................................................................................................................. [1] (b) Scientists have tried to estimate how many years it will be before these fuels run out. Look at the table. It shows one estimate for how many years are left before the fuels will run out. fuel
how many years before the fuel will run out
coal
143
natural gas
61
crude oil
43
Other scientists have arrived at different figures than those in the table. It is very difficult to estimate how many years it will take for a non-renewable fuel to run out. Suggest two reasons why. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] [Total: 3]
Š OCR 2012
14 (c) Debbie is thinking of buying a new petrol-engined car. She finds this information about a new car. fuel consumption in km per litre
16
carbon dioxide emissions in g/km
90
This information was obtained for a car moving at a steady speed of 80 km/h. (i)
Show, by calculation, that the mass of carbon dioxide made when she uses 5.0 litres of petrol is 7200 g. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [2]
(ii)
Debbie uses 5.0 litres of petrol when driving around a large town. Will Debbie make 7200 g of carbon dioxide every time she uses 5.0 litres of petrol? Explain your answer. ........................................................................................................................................... ...................................................................................................................................... [1] [Total: 8]
[Total:3]
Š OCR 2012
Š OCR 2012
89
actinium
[227] Ac*
57
lanthanum
139 La*
39
yttrium
89 Y
21
scandium
45 Sc
name
104
rutherfordium
[261] Rf
72
hafnium
178 Hf
40
zirconium
91 Zr
22
titanium
48 Ti
105
106
seaborgium
[266] Sg
[262] Db
dubnium
74
tungsten
184 W
42
molybdenum
96 Mo
24
chromium
52 Cr
73
tantalum
181 Ta
41
niobium
93 Nb
23
vanadium
51 V
atomic (proton) number
relative atomic mass atomic symbol
Key
107
bohrium
[264] Bh
75
rhenium
186 Re
43
108
hassium
[277] Hs
76
osmium
190 Os
44
ruthenium
101 Ru
[98] Tc
technetium
26
iron
56 Fe
25
manganese
55 Mn cobalt
59 Co nickel
59 Ni copper
63.5 Cu zinc
65 Zn
boron
carbon
nitrogen
oxygen
16 O
6
fluorine
19 F
7
4 He
0
109
meitnerium
[268] Mt
77
iridium
192 Ir
45
rhodium
103 Rh
27
110
darmstadtium
[271] Ds
78
platinum
195 Pt
46
palladium
106 Pd
28
111
roentgenium
[272] Rg
79
gold
197 Au
47
silver
108 Ag
29
The relative atomic masses of copper and chlorine have not been rounded to the nearest whole number.
81
thallium
204 Tl
49
indium
115 In
31
gallium
tin
82
lead
207 Pb
50
119 Sn
32
germanium
73 Ge
14
silicon
28 Si
6
83
bismuth
209 Bi
51
antimony
122 Sb
33
arsenic
75 As
15
phosphorus
31 P
7
84
polonium
[209] Po
52
tellurium
128 Te
34
selenium
79 Se
16
sulfur
32 S
8
85
astatine
[210] At
53
iodine
127 I
35
bromine
80 Br
17
chlorine
35.5 Cl
9
86
radon
[222] Rn
54
xenon
131 Xe
36
krypton
84 Kr
18
argon
40 Ar
10
neon
Elements with atomic numbers 112-116 have been reported but not fully authenticated
80
mercury
201 Hg
48
cadmium
112 Cd
30
70 Ga
13
aluminium
27 Al
5
20 Ne
2 14 N
5
helium
12 C
4
1 11 B
3
hydrogen
1 H
* The lanthanoids (atomic numbers 58-71) and the actinoids (atomic numbers 90-103) have been omitted.
88
87
[226] Ra
[223] Fr
radium
56
francium
barium
137 Ba
133 Cs
55
38
caesium
strontium
88 Sr
85 Rb
37
20
rubidium
calcium
40 Ca
39 K
19
12
potassium
magnesium
24 Mg
23 Na
11
4
sodium
beryllium
3
9 Be
7 Li
lithium
2
1
The Periodic Table of the Elements
24