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WorksheetsEdexcel iGCSE 3, 5b, 5c
Total questions: 34
Worksheet time: 19mins
Name
Class
Date
1.
Define the term hydrocarbon
a)
Molecule made of carbon and hydrogenation
b)
Molecule made of carbon and hydrogen
c)
Substance made of carbon and hydrogen
d)
Molecule made of carbon and hydrogen ONLY
2.
What is the general formula of an alkane
a)
2n+2
b)
CnH2n+2
c)
CnH2n
d)
CnHn
3.
What is the general formula of an alkene
a)
2n+2
b)
CnH2n+2
c)
CnH2n
d)
CnHn
4.
What does homologous mean?
a)
Same type e.g. alkanes
b)
Different molecules e.g. alkanes and alkenes
c)
Same general formula e.g. alkanes
d)
React the same e.g. alkenes
5.
What is the exam definition of saturated?
a)
No single bonds
b)
Contains a double bond
c)
No single bonds, all double bonds
d)
No double bonds, all single bonds
6.
What is the exam definition of unsaturated?
a)
No single bonds
b)
Contains a double bond
c)
No single bonds, all double bonds
d)
No double bonds, all single bonds
7.
What is this molecule?
a)
Butanes
b)
Pentene
c)
Pentane
d)
Butane
8.
Give the name of this compound...
C3H8
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
9.
The process of separating the different length hydrocarbons from crude oil is known as...
a)
Distillation
b)
Cracking
c)
Fractional Distillation
d)
Filtering
10.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
11.
How many carbon atoms are in ethane
a)
1
b)
2
c)
3
d)
4
12.
How many hydrogen atoms are in butane
a)
4
b)
6
c)
8
d)
10
13.
If an alkane has 32 hydrogen atoms, how many carbon atoms does it have?
a)
64
b)
66
c)
15
d)
16
14.
What liquid detects the presence of an alkene?
a)
Alkene water
b)
Bromine water
c)
Water
d)
Limewater
15.
What colour does bromine water turn in the presence of an alkene
a)
Orange
b)
Blue
c)
Clear
d)
Yellow
16.
Cracking.....
a)
Breaks larger hydrocarbons into smaller hydrocarbons
b)
Separates hydrocarbons based on their length
c)
Detects alkenes
d)
Separates hydrocarbons based on their boiling point
17.
What are the products of complete combustion of an alkane?
a)
Carbon dioxide and water
b)
Carbon dioxide causes global warming
c)
Water and carbon monoxide
d)
Carbon monoxide and carbon dioxide
18.
What is the problem with carbon dioxide?
a)
It causes global outrage
b)
It causes acid rain
c)
It causes global warming
d)
It turns limewater cloudy
19.
What is the problem with sulfur dioxide?
a)
It causes global outrage
b)
It causes acid rain
c)
It causes global warming
d)
It turns limewater cloudy
20.
What is the problem with nitrogen oxides?
a)
It causes global outrage
b)
It causes acid rain
c)
It causes global warming
d)
It turns limewater cloudy
21.
Why is nitrogen oxide formed during combustion?
a)
Nitrogen displaces carbon in carbon dioxide
b)
It is a product of combustion
c)
Nitrogen oxide is released during combustion
d)
Car engines are hot enough for oxygen and nitrogen in the air to react
22.
Hydrocarbons ...
a)
boil at their boiling point
b)
condense at their melting point
c)
condense at their boiling point
d)
are cheap
23.
The fractional distillation column
a)
is hotter at the bottom than the top
b)
is hotter at the top than the bottom
c)
is the same temperature throughout
d)
is really big
24.
The right order for the fractions (top to bottom) is...
a)
refinery gases, kerosene, fuel oil, gasoline, diesel, bitumen
b)
gasoline, kerosene, bitumen, refinery gases
c)
refinery gases, diesel, gasoline, bitumen
d)
refinery gases, gasoline, kerosene, diesel, fuel oil and bitumen
25.
Boiling points...
a)
Increase as you move down the column
b)
Decrease as you move down the column
26.
It is more viscous
a)
At the top because chain length is high
b)
At the bottom because chain length is low
c)
At the bottom because chain length is high
d)
At the bottom because the long chains sink
27.
Carbon monoxide is poisonous because
a)
is toxic
b)
it isn't carbon dioxide
c)
it has no smell
d)
reduces the capacity of the blood to carry oxygen
28.
Acid rain
a)
Smells funny
b)
Destroys umbrellas
c)
Damages statues
d)
Isn't real
29.
There is a greater proportion of long chain hydrocarbons
a)
Which is great because they are useful
b)
Which is great because they are not useful
c)
Which is rubbish because they are useful
d)
Which is rubbish because they are not useful
30.
Cracking produces short chain hydrocarbons
a)
Which is great because they are useful
b)
Which is great because they are not useful
c)
Which is rubbish because they are useful
d)
Which is rubbish because they are not useful
31.
What is a monomer?
a)
a molecule used to make a polymer
b)
a molecule with only single bonds
c)
an atom in a polymer
d)
a repeat unit in a polymer
32.
When ethene is turned into poly(ethene) what type of reaction has taken place?
a)
Polymers
b)
Hydration
c)
Addition polymerisation
d)
Condensation polymerisation
33.
What does biodegrade mean?
a)
Break down using electrocity
b)
Decay
c)
Unreactive
d)
Break down with the help of microbes
34.
What does inert mean?
a)
Break down using electrocity
b)
Decay
c)
Unreactive
d)
Break down with the help of microbes
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