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September 11, 2025, 07:20:16 pm

Author Topic: Double bond question...  (Read 8111 times)  Share 

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stonecold

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Double bond question...
« on: June 09, 2010, 04:00:10 pm »
Sorry to spoil everyone's joy, but if VCAA wan't to be assholes, they will only accept 7 double bonds for this question, as it didn't specify carbon-carbon, and you may therefore have been required to account for the C=O bond.  I personally wrote both 6 and 7 and explained it.

Nasty trick that one.

Don't worry though, I am presently shitting myself as there is a chance I coloured in two boxes wrong in multi choice FML...
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andy456

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Re: Double bond question...
« Reply #1 on: June 09, 2010, 04:02:17 pm »
That would just be shit if they did..... I don't think they would do that, would they??
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stonecold

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Re: Double bond question...
« Reply #2 on: June 09, 2010, 04:02:48 pm »
question didn't say carbon-carbon, so they can...
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Studyinghard

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Re: Double bond question...
« Reply #3 on: June 09, 2010, 04:03:32 pm »
that is just shit if they do that. EPIC GAYNESS.
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Blakhitman

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Re: Double bond question...
« Reply #4 on: June 09, 2010, 04:04:00 pm »
NOOOOOOOO.

bblovee

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Re: Double bond question...
« Reply #5 on: June 09, 2010, 04:04:54 pm »
vcaa just likes to screw with our minds don't they ==
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strathyboy23

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Re: Double bond question...
« Reply #6 on: June 09, 2010, 04:05:03 pm »
I walk out of the exam, comparing marks with my mates..yep you get 6 double bonds? yep..you? yep...
international student, who personally believes english is his greatest barrier, says no its 7..can't you guys read?
Good.

andy456

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Re: Double bond question...
« Reply #7 on: June 09, 2010, 04:05:59 pm »
I'm sure someone would argue it because it talked about carbon carbon double bonds in the info bit... and that you could determine it by adding I2
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vexx

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Re: Double bond question...
« Reply #8 on: June 09, 2010, 04:06:30 pm »
^ they have done this before in the past in the same matter where they didn't be specific enough.. im pretty sure either with or without double bond will be fine... if not then that's evil and hopefully almost everyone didnt get it- then they will have to accept (please?)
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Studyinghard

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Re: Double bond question...
« Reply #9 on: June 09, 2010, 04:07:16 pm »
but question clearly states how many total double bonds. Also stonecold if you wrote both answers down how do they know which one to pick? Its like putting down 2 answers for multiple choice?
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John President

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Re: Double bond question...
« Reply #10 on: June 09, 2010, 04:08:16 pm »
It depends on whether they:
A - deliberately set it as a trick question
B - forgot to specifically say "Carbon to Carbon"

If A, damn.
If B, I would be annoyed if i picked 7.
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Souljette_93

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Re: Double bond question...
« Reply #11 on: June 09, 2010, 04:09:56 pm »
Sorry to spoil everyone's joy, but if VCAA wan't to be assholes, they will only accept 7 double bonds for this question, as it didn't specify carbon-carbon, and you may therefore have been required to account for the C=O bond.  I personally wrote both 6 and 7 and explained it.

Nasty trick that one.

Don't worry though, I am presently shitting myself as there is a chance I coloured in two boxes wrong in multi choice FML...



Will they accept two answers?

I reckon since there can be two interpretations, then they would accept both. Last year of a MCQ they accepted two answers since it can be interpreted in two ways..


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John President

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Re: Double bond question...
« Reply #12 on: June 09, 2010, 04:10:44 pm »
but question clearly states how many total double bonds. Also stonecold if you wrote both answers down how do they know which one to pick? Its like putting down 2 answers for multiple choice?
No, it just says how many double bonds. The word "total" isn't used.

Why is this significant? If they said "total" it clearly suggests they want people to take into account the C=O bond. Since they didn't, it may simply be a gaffe from the VCAA. I bloody hope it's a gaffe.
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andy456

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Re: Double bond question...
« Reply #13 on: June 09, 2010, 04:11:11 pm »
Maybe they will give it to both because of ambiguity
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vexx

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Re: Double bond question...
« Reply #14 on: June 09, 2010, 04:12:00 pm »
oh and everyone read the question again
"the number of double carbon to carbon bonds can be determined by.."
pretty sure they have to accept 6 as the answer, or they would have said for the question what is the 'total' number of double bonds and not just calculate 'the' number of double bonds which could infer just carbon to carbon.
stonecold- i envy your safeness, explaining both will get the marks.
2010 VCE: psychology | english language | methods cas | further | chemistry | physical ed | uni chemistry || ATAR: 97.40 ||

2011: BSc @ UoM

Y1: biology of cells&organisms | music psychology | biological psychology | secret life of language | creative writing
    || genetics&the evolution of life | biochemistry&molecular biology | techniques of molecular science -.- | mind,brain&behaviour 2

20XX: MEDICINE