benzene

[vexx]

yeah phenyl is pretty much benzene-R
i didn't mean benzene alone, but when it's attached to anything it's a functional group as 'phenyl'
and vcaa recognises this apparently, as if they say circle the functional groups, you'd be correct to circle benzene.benzene as a functional group= C6H5-R

ok, i'm going with this and if get marks taken off i'm hunting you down vexx. I'm gonna wait afterschool on a tuesday and stop every single non-scotch person i see asking "hi, do you go on the forum vce notes under the name vexx?"

hahaha, don't worry as long as you call it a phenyl group (if C6H5-) not benzene if your asked XD
but im sure youd be more likely it identity the other groups, if there are any..

[Blakhitman]

Benzene is not a functional group. Much like a methane or ethane are not functional groups.

Arene, aryl or phenyl are functional group, these are substituted benzene rings. Similarly, methyl and ethyl (or in general, alkyl) are functional groups.


+1 to akira88

this makes 100% sense, lady at tsfx lecture said benzene is a functional group and labelled C6H5-R as benzene functional groups.

Also didn't like the fact she said we had to draw hydrocarbon chains with angles...not mention saying we have to put 1-propanoic acid.

[Potter]

Benzene is not a functional group. Much like a methane or ethane are not functional groups.

Arene, aryl or phenyl are functional group, these are substituted benzene rings. Similarly, methyl and ethyl (or in general, alkyl) are functional groups.


+1 to akira88

this makes 100% sense, lady at tsfx lecture said benzene is a functional group and labelled C6H5-R as benzene functional groups.

Also didn't like the fact she said we had to draw hydrocarbon chains with angles...not mention saying we have to put 1-propanoic acid.

I can can only think of one isomer of propanoic acid... Don't see why you would have to include the 1. I guess if you want to be 100% sure, it's better to do more than less.

[vexx]

Benzene is not a functional group. Much like a methane or ethane are not functional groups.

Arene, aryl or phenyl are functional group, these are substituted benzene rings. Similarly, methyl and ethyl (or in general, alkyl) are functional groups.


+1 to akira88

this makes 100% sense, lady at tsfx lecture said benzene is a functional group and labelled C6H5-R as benzene functional groups.

Also didn't like the fact she said we had to draw hydrocarbon chains with angles...not mention saying we have to put 1-propanoic acid.

yes! you had the same person, i think she was applying benzene as a phenyl group since they wont ask specifically, you just need to be able to identify it as one, but still she wasn't completely correct><

[tram]

Benzene is not a functional group. Much like a methane or ethane are not functional groups.

Arene, aryl or phenyl are functional group, these are substituted benzene rings. Similarly, methyl and ethyl (or in general, alkyl) are functional groups.


+1 to akira88

this makes 100% sense, lady at tsfx lecture said benzene is a functional group and labelled C6H5-R as benzene functional groups.

Also didn't like the fact she said we had to draw hydrocarbon chains with angles...not mention saying we have to put 1-propanoic acid.

lol, you know the guy that questioned her about benzene during the lecture?.....that was me.....lol

but yea, was just about to get up here telling you guys that benzene is definitely concidered a functional group by VCAA, as was confirmed by the chief examiner, ccording to the lecturer today who i know has contacts VERY high up for all vce subjects

[tram]

but omg......massive chem overload today........i'll have to go do some maths to get it out of my system

[physics]

yeah phenyl is pretty much benzene-R
i didn't mean benzene alone, but when it's attached to anything it's a functional group as 'phenyl'
and vcaa recognises this apparently, as if they say circle the functional groups, you'd be correct to circle benzene.benzene as a functional group= C6H5-R

ok, i'm going with this and if get marks taken off i'm hunting you down vexx. I'm gonna wait afterschool on a tuesday and stop every single non-scotch person i see asking "hi, do you go on the forum vce notes under the name vexx?"

LOL it sounds logical so i will circle benzene as a functional group but IFFFFFFF it isnt i will kill u . :L soz.


so is it better to circle or not?

[Blakhitman]

Benzene is not a functional group. Much like a methane or ethane are not functional groups.

Arene, aryl or phenyl are functional group, these are substituted benzene rings. Similarly, methyl and ethyl (or in general, alkyl) are functional groups.


+1 to akira88

this makes 100% sense, lady at tsfx lecture said benzene is a functional group and labelled C6H5-R as benzene functional groups.

Also didn't like the fact she said we had to draw hydrocarbon chains with angles...not mention saying we have to put 1-propanoic acid.

lol, you know the guy that questioned her about benzene during the lecture?.....that was me.....lol

lol can't remember.

Physics one today was so much better.

And Anna definitely circle it, it's the name that was confused, some were saying Benzene is a functional group as in C6H6 but some (incl. the chem god) were saying phenyl is as in C6H5-R

[crayolé]

but omg......massive chem overload today........i'll have to go do some maths to get it out of my system

Who lectured chem today? The big lady?

[physics]

Benzene is not a functional group. Much like a methane or ethane are not functional groups.

Arene, aryl or phenyl are functional group, these are substituted benzene rings. Similarly, methyl and ethyl (or in general, alkyl) are functional groups.


+1 to akira88

this makes 100% sense, lady at tsfx lecture said benzene is a functional group and labelled C6H5-R as benzene functional groups.

Also didn't like the fact she said we had to draw hydrocarbon chains with angles...not mention saying we have to put 1-propanoic acid.

lol, you know the guy that questioned her about benzene during the lecture?.....that was me.....lol

lol can't remember.

Physics one today was so much better.

And Anna definitely circle it, it's the name that was confused, some were saying Benzene is a functional group as in C6H6 but some (incl. the chem god) were saying phenyl is as in C6H5-R

either way circle it!
OHHH~thanks

[tram]

lol, you know the guy that questioned her about benzene during the lecture?.....that was me.....lol

lol can't remember.

Physics one today was so much better.

And Anna definitely circle it, it's the name that was confused, some were saying Benzene is a functional group as in C6H6 but some (incl. the chem god) were saying phenyl is as in C6H5-R

lol, that would be bcs, i went to the chem lecture today, not yesterday....whoops, i didn't realise you went yesterday, not today....i just kinda assumed

but omg......massive chem overload today........i'll have to go do some maths to get it out of my system

Who lectured chem today? The big lady?

yup, it was irena, i prefer byron BY FAR. He's muhc more entertaining, esp when you have to sit thu 7 hours of chem.....*shudders* lol at you trying to be politically correct btw....

either way circle it (the benzene ring)!
OHHH~thanks

pretty much

[chansthename]

Benzene is a functional group? I think perhaps the double bond IN the benzene is a functional group

Remember that hydroxyl is a functional group and carbonyl is too. but carboxyl is as well and it contains both those functional groups.

[Blakhitman]

My teacher said benzene is not a functional group . As in don't even circle it. Don't know who to believe. And yea she said the double bond is a functional group.

Besides, never once have I seen it circled in the solutions to practice exams, so I need a clarification!!

[m@tty]

Looky here.

[vexx]

My teacher said benzene is not a functional group . As in don't even circle it. Don't know who to believe. And yea she said the double bond is a functional group.

Besides, never once have I seen it circled in the solutions to practice exams, so I need a clarification!!

yeah as matty just posted, it's not benzene as a functional group, it has another name which you don't need to know. but if you have to circle functional groups use double bonds or the common other ones in priority