IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: holtadit on November 01, 2009, 06:24:12 pm
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given somethin like:
CH3–C=CH2
l
CH3
How would you draw the displayed structural formula or line bond formula ?
In short i want to know how to take a condensed structural formula and turn it into a displayed structural formula and then be able to name the organic compound.
DONOT give me links to websites; please try and explain this to me instead (i have researched this extensively)
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do u mean like this :
C4H8 - nw as there is 1 double bond ... so its an alkene - 4 carbon atoms- butene
nd wen u turn into structural -
H H
l l
H-C-C=C-H Cuz d point is every C atom should be bonded with 4 other atoms ..... nd since u hav this u can make isomers
l l And in naming this ... ders a CH3 which is mthyl .... nd d upper chain which is d longest ...
H l dat contains 3 carbon atoms nd a duble bond so propene .... so 2-methyl-propene (diagram may help)
H-C-H
l
H
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given somethin like:
CH3–C=CH2
l
CH3
How would you draw the displayed structural formula or line bond formula ?
In short i want to know how to take a condensed structural formula and turn it into a displayed structural formula and then be able to name the organic compound.
DONOT give me links to websites; please try and explain this to me instead (i have researched this extensively)
it shud be 2-methyl propene
2 becoz the methyl group is hanging from the 2nd carbon
methyl because its a methyl group attached
butene because there is a double bond and its 3carbon excluding the methly
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You must be wrong because the 2003 june paper IGCSE chem. says that it is bu-2-ene.
How is this possible ?? Even i thought it was 2-methylpropene
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yes it is indeed 2methyl propene
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You must be wrong because the 2003 june paper IGCSE chem. says that it is bu-2-ene.
How is this possible ?? Even i thought it was 2-methylpropene
2-methyl-propene is actually isobutene or but-2ene
same thing.
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yes this is an isomer of but-2-ene....
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so yaa same thing
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2-methyl-propene is actually isobutene or but-2ene
same thing.
Not that i dont belieev u, but how do you know ? Could u please include a relevant website that says so...
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hmm.!!
when 2 methyl propene has two names: iso butene and but-2-ene!!
its one and the same!!
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Not that i dont belieev u, but how do you know ? Could u please include a relevant website that says so...
its naming the isomers. general name would be isobutene...or but-2-ene because the methyl group is attached in the 2nd carbon..
for 2 methyl propene....u have to read the book to learn how to name..
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true!!
hey aadi you having the notes given by the guest teacher!!
upload them!!
i threw my notes !!
lolzz
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true!!
hey aadi you having the notes given by the guest teacher!!
upload them!!
i threw my notes !!
lolzz
i had ritten those in the past paper booklets...not much to learn from them...just read the book..its all dere..
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but ma'am had aslo given us the common names and chemical names rite??
so here it would help ari!!