IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: @d!_†oX!© on August 16, 2010, 11:48:45 am

Title: Addition of bromine
Post by: @d!_†oX!© on August 16, 2010, 11:48:45 am: What will be difference in the products of:

CH₂=CH₂ + Br_2(aq) ---->

and

CH₂=CH₂ + Br₂ ---->

Thanks in advance :D
Title: Re: Addition of bromine
Post by: Chingoo on August 16, 2010, 12:26:49 pm: None. However, liquid bromine is not used usually because it is corrosive and highly poisonous.

Hence, the product should be:

CHBrCHBr (1,2-Dibromoethane)
Title: Re: Addition of bromine
Post by: Saladin on August 16, 2010, 02:13:51 pm: I think there is a difference.

The first one would have one with a hydroxide ion.

The second one should have both bromine on it.
Title: Re: Addition of bromine
Post by: @d!_†oX!© on August 16, 2010, 02:15:24 pm: Quote from: Engraved on August 16, 2010, 02:13:51 pm
I think there is a difference.

The first one would have one with a hydroxide ion.

The second one should have both bromine on it.
That is exactly what I am confused about.
Title: Re: Addition of bromine
Post by: Saladin on August 16, 2010, 02:15:49 pm: Quote from: @d!_†oX!© on August 16, 2010, 02:15:24 pm
That is exactly what I am confused about.

Here is the proof (http://www.chemguide.co.uk/organicprops/alkenes/halogenation.html#top).
Title: Re: Addition of bromine
Post by: nid404 on August 16, 2010, 02:17:22 pm: thanks engraved
Title: Re: Addition of bromine
Post by: Saladin on August 16, 2010, 02:37:37 pm: You both are very welcome! :D
Title: Re: Addition of bromine
Post by: Chingoo on August 16, 2010, 04:02:49 pm: Gah, he's right. *scratches head* I need to hit the books again now that school starts soon. :o