點將alkane 變alkene

First strp - formation of haloalkane
Treat alkane with chlorine in ether under UV light.
Chloroalkane is formed.

Second step - elimination of haloalkane
Add sodium hydroxide solution into haloalkane in presence of alcohol and heating.
Alkene is formed.

2008-09-26 17:44:49 補充：
This is the synthesis of alkene from alkane.

ractional distillation

to separate a mixture to pure substance

use in fossil fuel

cracking

to damage a big substance to some small substance

big alkane change to small alkane and alkene