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Homework Help: A very simple qn on geometrical isomers

  1. Sep 13, 2013 #1
    1. The problem statement, all variables and given/known data
    Can anybody explain how this compound can have 3 geometrical isomers isomers.
    CHEMISTRY1.jpg <----------CLICK TO SEE

    2. Relevant equations

    3. The attempt at a solution
    The compound contains two double bonds hence will have 2 pairs of cis-trans isomers.That means it will have four geometrical isomers.But my book says the isomers are 3.

    Plz help
    Last edited: Sep 13, 2013
  2. jcsd
  3. Sep 13, 2013 #2


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    Staff: Mentor

    What is the symmetry of the molecule?
  4. Sep 14, 2013 #3


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    Science Advisor
    Homework Helper
    Gold Member

    Are any of the 4 you identified superimposable?
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