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Homework Help: Unknown Organic Chemicals Distinction

  1. Nov 17, 2008 #1
    1. The problem statement, all variables and given/known data
    Use a flow chart to distinguish between: 1-hexene, cyclohexanol, 1-bromobutane, 1-propanol, 2-hexene, 1-hexyne, 2-bromopentane, 3-methyl-3-hexanol, 3-bromo-3-methylhexane by using a positive and negative test by adding other compounds


    2. Relevant equations
    N/A


    3. The attempt at a solution
    I used ZnCl2 in HCl to distinguish cyclohexanol and 3-methyl-3-hexanol from the rest and used the same test to distinguish them from each other.
    Then, I used acidic chromate solution to distinguish 1-propanol by the formation of green chromium (III) ion
    I just do not know where to find the information on how to separate these compounds (It is not in my book.) Any and all information would be awesome!
     
    Last edited: Nov 17, 2008
  2. jcsd
  3. Nov 19, 2008 #2

    chemisttree

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    Is the question asking to distinguish between samples of each of these or to find a way to separate a mixture of them?
     
  4. Nov 19, 2008 #3
    It asks to distinguish between different samples of each. They are NOT mixed together.
     
  5. Nov 20, 2008 #4

    chemisttree

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    Separate them into groups. You have 3 examples of alcohols, one primary, one secondary and one tertiary. You have 2 examples of olefins, one alpha and one internal. You have one example of an alkyne. Its unsaturation might lead you to believe that it is an olefin but it has a property that olefins don't. You have 3 examples of alkyl halides, one primary, one secondary and one tertiary.

    Now, find http://www.docbrown.info/page13/ChemicalTests/ChemicalTests.htm" [Broken] and you are ready to begin.
     
    Last edited by a moderator: May 3, 2017
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