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Topscore orgo question help please

Discussion in 'DAT Discussions' started by rocky90, Aug 2, 2011.

  1. rocky90

    2+ Year Member

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    Exam 1 question 3 (73) says that there are 2 singlets in answer b. Can anyone please explain. The answer is not helping me.
    Thanks
     
    #1 rocky90, Aug 2, 2011
    Last edited: Aug 2, 2011
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  3. needzmoar

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    Could you take a screen shot?
     
  4. rocky90

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    I dont mind but is it ok to post the question?
     
  5. Dental2000

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    yes post it don worry...No one here is gonna snitch on you...
     
  6. rmm30

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    They might...there are some real low lives on this forum. I've been cruising it for almost a year and have witnessed at least a half dozen tattletails. Nobody likes tattletails!
     
  7. glo1984

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    Draw it out and reword it as your own question with the purpose of understanding it better, then post the screenshot.
     
  8. needzmoar

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    if you want, give me the name of the structure and I'll generate an HNMR/CNMR for you.
     
  9. LetsGo2DSchool

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    Snitches are bitches and deserve stitches.
     
  10. Dusk

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    I'm reviving this thread. Help me out please! The answer states that there are two singlets in:

    B. 1,4-Dimethoxybenzene

    http://en.wikipedia.org/wiki/1,4-Dimethoxybenzene


    But wouldn't there also be two singlets in another answer choice:
    D. Acetone ?

    Wouldn't acetone give 2 singlets as well? Or is it because there's symmetry, so only one H singlet is shown since they overlap? And 1,4 dimethoxybenzene shows two singlets because one from the aromatic H and one from the methoxy H? The other methoxy H and aromatic H's are equivalent so would just overlap, leading to only two visible singlets? Am I correct? :idea:
     
  11. FROGGBUSTER

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    Yup, acetone should give only one singlet I think. All 6 H's are equivalent.

    I think your reasoning is correct for 1,4-dmb as well.
     
  12. Dusk

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    thank you thank you! :bow:
     

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