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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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lexaebrown lexaebrown
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11 years ago
What is the difference between Halogenation in Alkane compound and Alkene compound?
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#1
11 years ago
http://answers.yahoo.com/question/index;_ylt=AomWuuQv9E0uLO6fW_Maph_ty6IX;_ylv=3?qid=20100809093426AATak7W


this is so urgent and i need help please help me
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#2
11 years ago
Firstly,Hydrogenation of Alkane is not possible since it does not have free valency.
These Articles can help:
http://en.wikipedia.org/wiki/Hydrogenation

http://en.wikipedia.org/wiki/Alkene#Hydrogenation

Hydrogenation of alkyne is possible:
http://en.wikipedia.org/wiki/Alkyne#Addition_of_hydrogen.2C_halogens.2C_and_related_reagents

I hope u got ur answer!
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#3
11 years ago
Not hydrogenation, HALOGENation!

In an alkane, the halogen will be selective for the tertiary position.  It's catalyzed by light or heat.  It can also be catalyzed by peroxides (ROOR), which will lead to addition in the anti-mark (primary) position.

In an alkene, the halogen will attack the double bond.  It will break the bond and add anti to either side of it, leading to a vicinal dihalide. CCl4 is a comment solvent.
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