NEW
Font size
S
M
L
XL
WorksheetsCockermouth School AQA GCSE Organic Chemistry F
Total questions: 32
Worksheet time: 17mins
Name
Class
Date
1.
What is crude oil?
a)
Fossils
b)
A mixture of hydrocarbons
c)
A lubricant
d)
Petrol
e)
Tar
2.
What is formed from the remains of ancient biomass (mostly plankton) that was buried in mud?
a)
Gas
b)
Napthol
c)
Crude oil
d)
Diesel
e)
Alcohol
3.
A resource that will eventually run out is known as…?
a)
Renewable
b)
Useful
c)
Infinite
d)
Carbon neutral
e)
Finite
4.
Which of the following is a finite resource?
a)
Wood
b)
Crude oil
c)
Water
d)
Carbon
e)
Biodiesel
5.
A substance made of hydrogen and carbon ONLY is called a…?
a)
Carbohydrate
b)
Carbohydrogen
c)
Hydrocarbon
d)
Hydroxide
e)
Carbon dioxide
6.
A mathematical formula which allows you to work out the chemical formula of a substance is the…?
a)
General formula
b)
Corporal formula
c)
Molecular formula
d)
Structural formula
e)
Empirical formula
7.
Which homologous series do hydrocarbons that contain only single bonds belong to?
a)
Alkane
b)
Alkene
c)
Hydroalkane
d)
Hydrocarbons
e)
Alkyne
8.
Name the first four alkanes
a)
Ethane, methane, propene, butene
b)
Ethane, methane, propane, butane
c)
Methane, ethane, butane, propane
d)
Methane, ethane, butane, pentane
e)
Methane, ethane, propane, butane
9.
What is the general formula for alkanes?
a)
CnH2n
b)
CnH2n+2
c)
C2nH2n+2
d)
CnHn+2
e)
C2nH2n
10.
How happens to the boiling point as the length of an alkane increases?
a)
Depends
b)
Stays the same
c)
Increases
d)
Decreases
e)
Unchanged
11.
How happens to viscosity as the length of an alkane increases?
a)
Decreases
b)
Increases
c)
Gets runnier
d)
Stays the same
e)
Unchanged
12.
How happens to flammability as the length of an alkane increases?
a)
Depends
b)
Stays the same
c)
Decreases
d)
Increases
e)
Unchanged
13.
What process is used to separate mixtures of substances with different boiling points?
a)
Chromatography
b)
Fractional Distillation
c)
Filtering
d)
Condensation
e)
Evaporating
14.
A substance which when reacted with oxygen releases energy is known as a…?
a)
Oxidiser
b)
Reaction
c)
Fuel
d)
Reduction
e)
Burning
15.
Name 3 fuels we obtain from crude oil
a)
Petrol, diesel, wood
b)
Petrol, diesel, coal
c)
Petrol, diesel, kerosene
d)
Petrol, biodiesel, kerosene
e)
Petrol, biodiesel, kerosene
16.
What other use is there for products of fractional distillation?
a)
Clay
b)
Hydrogen gas
c)
Food
d)
Making polymers
e)
Tarmac
17.
What type of reaction is that of a fuel with oxygen?
a)
Displacement
b)
Redox
c)
Dehydration
d)
Combustion
e)
Thermal decomposition
18.
What are the products of complete combustion?
a)
SO2 + H2O
b)
H2O
c)
CO
d)
CO + H2O
e)
CO2 + H2O
19.
When does incomplete combustion occur?
a)
Lack of oxygen
b)
Excess oxygen
c)
Depends
d)
Lack of fuel
20.
What is the process of breaking down a long hydrocarbon into smaller hydrocarbons
a)
Cracking
b)
Fracking
c)
Combustion
d)
Oxidation
e)
Distillation
21.
What are the products of cracking?
a)
Bromine water
b)
Short alkanes and alkenes
c)
Branched alkenes
d)
Polymers
e)
Alkanes only
22.
What are the two types of cracking?
a)
Catalysis and stream
b)
Catalytic and steam
c)
Redox and cracking
d)
Redox and catalytic
23.
Which homologous series do hydrocarbons that contain double bonds belong to?
a)
Esters
b)
Alcohols
c)
Alkenes
d)
Alkanes
24.
What are alkenes used as?
a)
Terting for bromine water
b)
Food
c)
Monomers
d)
Paints
25.
How do you test for an alkene?
a)
React it with oxygen
b)
React it with litmus paper
c)
React it with bromine water
d)
pH test
26.
What is the colour change when an alkene reacts with bromine water?
a)
Turns clear
b)
Turns orange
c)
From colourless to orange
d)
From orange to colourless
e)
Turns colourless
27.
What does an alkene have that an alkane does not?
a)
Electrons
b)
Less reactive
c)
Oxygen
d)
Double C=C bond
e)
Single C-C bond
28.
What is the general formula for alkenes?
a)
CnH2n+2
b)
C2nH2n+2
c)
CnHn+2
d)
Cn+2Hn+2
e)
CnH2n
29.
A hydrocarbon that contains a double bonds is also known as…?
a)
Alkane
b)
Wet
c)
Unsaturated
d)
Saturated
30.
What are the first 3 alkenes?
a)
Methene, ethene, propene
b)
Ethene, propene, pentene
c)
Ethene, propene, butene
d)
Butene, ethene, propene
e)
Methene, ethene, propane
31.
What conditions are necessary in the reaction of alkenes with hydrogen?
a)
300°C, Iron catalyst
b)
60°C, Nickel catalyst
c)
600°C, High pressure
d)
Low temperature, Nickel catalyst
e)
600°C, High temperature
32.
What are the products of a combustion reaction involving an alcohol and oxygen?
a)
Polymers
b)
Hydrogen monoxide
c)
Carbon dioxide
d)
Carbon dioxide and water
e)
Methane & water
Reset
