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Organic Chemistry

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Deadly_king:

--- Quote from: sciencefan on October 11, 2010, 06:22:52 am ---Thanks to answer me Deadly_king,,

Ok but why the propanol structure is not like this;



                 c=c-c- ( is an isomer)????????
                 of
                this
               c-c-c

--- End quote ---

Sorry dude.......C is not propanol. It is propen-1-ol like Garfield said :)
I described B instead of C. :-[

An isomer is a compound with same molecular formula but different structural formula.

A compound consisting a double bond (C=C) will NOT have the same formula as that of hydrocarbon(C-C).

Example : Propene and propane

Propene ----> H2C=CHCH3
Propane ----> H3CCH2CH3

You will note that Propane has two hydrogen atoms more than propene. Hence they are not isomers ;)

By the way.......thanks for correcting me Garfield :)

sciencefan:
Another question..

When ethene reacts with HCl the products is chloroethene + HCl  ?

nid404:

--- Quote from: sciencefan on October 11, 2010, 09:07:07 am ---Another question..

When ethene reacts with HCl the products is chloroethene + HCl...



--- End quote ---

Nope it's Chloroethane
    H  H                      H H
    |  |                       | |
H-C=C-H + HCl--->  H-C-C-H
                               |  |
                               H Cl

Deadly_king:

--- Quote from: sciencefan on October 11, 2010, 09:07:07 am ---Another question..

When ethene reacts with HCl the products is chloroethene + HCl  ?



--- End quote ---

Nan.......When ethene reacts with HCl, only chloroethane is formed!

The C=C breaks and one carbon atom accepts a Cl atom while the other one accepts the H atom.

nid404:
Yup true that King  :)
It's an electrophilic addition reaction. So both of them add across the double bond

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