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Homework Help: Which of the following are saturated hydro carbons?

  1. Jun 27, 2012 #1


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    1. The problem statement, all variables and given/known data

    I did my chemistry diploma yesterday and a numerical response question asked which of the 4 are saturated hydrocarbons?

    I cant remember all of them but here's what i remember:

    2. Relevant equations


    3. The attempt at a solution**sorry I cant illustrate the hydrocarbons, but ill try my best to explain**

    I managed to figure out three of them, as they were single bonded - alkanes, and it came down to 3 left.

    2 of which had c=c bonds, and one had a c-c=o bond and also branched off with OH - making it a carboxylic acid.

    The single bonded to double bond O c-c=o would be saturated right?
  2. jcsd
  3. Jun 27, 2012 #2


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    Staff: Mentor

    Carboxylic acid is not a hydrocarbon, so depending on the exact wording it could be either a trick question, or it asked about a side chain (only carbon-carbon bonds are taken into account when determining saturation).
  4. Jun 27, 2012 #3


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    Okay, the exact wording probably went along the lines of which include saturated hydro carbon groups. So in that case, using elimination, I know that the other 2 compounds with c=c bonds are incorrect, leaving me with this last carboxylic acid. Thanks!
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