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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Kaleyrvt on January 31, 2007, 12:05:27 PM

Title: Alkenes
Post by: Kaleyrvt on January 31, 2007, 12:05:27 PM

When 2-butene reacts with hydrogen chloride gas, only one product is detected,
whereas when 1-butene reacts similarly, two products are usually found. Explain this.   

I need help with this guys!

They are both alkenes, so have double C=C bonds but I am not sure what to do or how to figure it out?!

Title: Re: Alkenes
Post by: english on January 31, 2007, 01:11:48 PM

You mean 2-butene gives two products in moderate yields.

Title: Re: Alkenes
Post by: Kaleyrvt on January 31, 2007, 01:36:51 PM

I do not understand your post... :-\

Title: Re: Alkenes
Post by: english on January 31, 2007, 02:04:26 PM

1-Butene cannot give two products.  It can only give one.  The other one is practically hypothetical.  Maybe you read the question wrong?

Title: Re: Alkenes
Post by: Dan on January 31, 2007, 02:06:34 PM

Quote from: k.V. on January 31, 2007, 01:11:48 PM

You mean 2-butene gives two products in moderate yields.

I don't think so. I can only see one product forming from HCl + 2-butene.
1-butene could give two, although one major.

Kayleyrvt, what is the product from the HCl + 2-butene reaction?

You know the reaction with 1-butene is similar, so what are the possible products?

Title: Re: Alkenes
Post by: english on January 31, 2007, 02:10:07 PM

Aye.  I didn't see the symmetry. 

-_-

Title: Re: Alkenes
Post by: Kaleyrvt on February 01, 2007, 04:06:49 PM

is the reaction for 2-butene 2-chlorobutene???
I am saing this because you are really adding chlorine to it.

I don't understand this really.
I know that to break the double bonds, you have to add a H and a Cl to the C atoms that have the double bonds. That's about all I can figure out :(

Title: Re: Alkenes
Post by: Dan on February 01, 2007, 04:12:19 PM

http://www.chemguide.co.uk/organicprops/alkenes/hhal.html