Alkenes Flashcards
What are alkenes
Unsaturated hydrocarbons with the general formula of CNH2N
What does the carbon carbon double covalent bond consist of?
A sigma and Pye bond
What does a pipe bond have?
High electron density which allows electron files to attack it
How do alkenes react?
Electrophilic edition
What are the three reagents for electrophilic edition?
Hydrogen bromide
Hydrogen sulphate
Bromine
What happens when you react bromine with alkenes
alkene into dihalogenoalkane
Hydrogen bromide with alkenes
alkene into halogenoalane
Sulfuric acid with alkene
Alkene into an alkyl hydrgensulfate
What is an electrophile
An electron pair acceptor
What is the test for alkene
Bromine water gets decolourised
How do you addition polymers form?
From Al Keynes and it is called addition polymerisation
What is PVC
It is polychloroethene
Explain the properties of PVC
It is waterproof and an electrical insulator which doesn’t react with acid
It has strong intermolecular bonding between the polymer chains. This prevents it from moving over each other.
