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Alkenes - Coggle Diagram
Alkenes
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Nature of
Double Bond
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trigonal planar shape
around double bond
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Halogenation
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occurs:
- in presence of hydrogen gas
and a nickel catalyst
(finely divided = large SA)
- exact temperature (ethane = 180°)
- exact pressure
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Polymers
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POLYETHENE
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- flexible
- light
- good insulator
- resistant water/acid
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POLYPROPENE
- tough
- easily moulded
- resistant water/acid
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POLYVINYL
CHLORIDE
- tough
- rigid
- resistant water/acid
guttering, window frames,
waterproof clothing
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