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What is an alkene
An unsaturated hydrocarbon
What type of bonds are in alkene
One Double carbon=carbon bond
General Formula of Alkene
CnH2n
Name first 4 alkenes
Ethene
Propene
Butene
Pentene
Chemical test for distinguishing between alkanes and alkenes
Bromine water added
Alkane: no change in colour
Alkene: discolours bromine water from orange to colourless
2 important uses of crude oil ( nothing to do with alkenes)
Fuel
Plastics