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WorksheetsN5 Chemistry- Reactions of alkenes
Total questions: 19
Worksheet time: 57mins
What Alkene is C4H8?
Propene
Pentene
Butene
Ethene
Which is the alkene?
A
B
What happens during an addition reaction in terms of bonding? Tick two.
Carbon-carbon double bond remains the same.
Carbon-carbon double bonds open up.
The two carbon atoms bond to atoms of another molecule.
Only one carbon bonds with another molecule.
What type of reaction is shown?
Polymerisation
Bromination
Hydrogenation
Hydration
What type of reaction is shown?
Polymerisation
Hydrogenation
Hydration
Bromination
What type of reaction is shown?
Polymerisation
Hydration
Hydrogenation
Bromination
Bromine water is used to test for Alkenes. What happens to the Bromine water when an Alkene is added?
When an alkane is added to bromine water it remains orange. Why?
There is reaction is taking place.
There is no reaction taking place.
If an alkene reacts with a halogen, it is known as what type of reaction?
Addition
Combustion
Polymerisation
Hydrogenation
What is the major product formed for this reaction.
What would you make if you added Hydrogen to Ethene?
Ethane
Propane
1,2 - dihydroethane
Ethanol
What is meant by a saturated hydrocarbon?
Contains at least one carbon to carbon double bond
Contains only single covalent bonds between the carbon atoms
Contains mostly single covalent bonds between the carbon atoms
Contains a double covalent bond between the carbon atoms
What is meant by an unsaturated hydrocarbon?
Contain at least one carbon to carbon double bond or a carbon to carbon triple bond
Contain only carbon to carbon double bonds
Contain only carbon to carbon single bonds
Contain at least two carbon to carbon double bond or a carbon to carbon triple bond
What is used to test for saturation/ unsaturation?
Bromine acid
Potassium permanganate
Iodine solution
Bromine water
What name is given to the reaction when you add chlorine across a double bond?
hydration
addition
hydrogenation
polymerisation
What product is formed when you react hydrogen with pent-3-ene?
cyclopentane
hex-3-ene
pent-1-ene
pentane
Which of these hydrocarbons would react with bromine water?
pentane
cyclopropane
ethene
ethane
