Qualification > Sciences

organic chemistry help required. plz

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SpongeBob:

--- Quote from: ashwinkandel on September 30, 2010, 03:03:30 pm ---in marking scheme i found alkene also functional group. Can anyone explain me why alkene is also functional group?


--- End quote ---

Alkenes have characteristic properties.They have a general formula CnH2n.

Vin:
Common functional groups.

-> R-COOH = acidic group

->R- OH = alcohol group

->R - COO - R'  = Ester group

->R - CHo = Aldehyde group

          O
         ||
-> R - C - R' - Ketone group

These are the groups which I'm aware of, apparently.

Vin:

--- Quote from: Ari Ben Canaan on September 30, 2010, 02:44:04 pm ---I think CH3 (methyl) is a functional group too.

--- End quote ---

Yup.

ashwinkandel:
for the compound 3-methyl-hex-2-enol , alkene is also considered as functional group but how???

Deadly_king:

--- Quote from: ashwinkandel on October 01, 2010, 03:47:23 am ---for the compound 3-methyl-hex-2-enol , alkene is also considered as functional group but how???

--- End quote ---

The functional groups are methyl, alcohol and alkene groups.

3-methyl-hex-2-enol is an alkene consisting of two OH groups of atoms. The fact that it is an enol makes it an alkene.

Otherwise it would have been simply said to be 3-methyl-hex-2-anol

Just like for hexene and hexane.
Hexene is an alkene while hexane is an alkane. For this compound, it contains two OH groups each from the 1 carbon forming the carbon-carbon double bond.

Hope it helps :)

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