Alkenes and Isomers in Organic Chemistry
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Questions and Answers

Which functional group is the most reactive due to the presence of two pi bonds?

  • Aromatic hydrocarbon
  • Alkane
  • Alkene
  • Alkyne (correct)

    • Why can't alkynes undergo rearrangement reactions?

  • Due to the straight nature of the carbon-carbon triple bond (correct)
  • Alkynes are too stable to undergo rearrangement
  • They do not have reactive functional groups
  • Because they lack pi bonds

    • Which type of compound is suitable for gas ripening of fruits?

  • Aromatic hydrocarbon
  • Alkene
  • Alkane
  • Alkyne (correct)

    • Why do alkenes have higher boiling points compared to alkanes?

    <p>They contain a double bond</p> Signup and view all the answers

    Which type of bond contributes to the increased reactivity of alkynes compared to alkenes?

    <p>Pi bond</p> Signup and view all the answers

    What property distinguishes alkynes from alkenes and alkanes regarding bond type?

    <p>Presence of a sigma and two pi bonds</p> Signup and view all the answers

    Why are alkynes more polar than alkenes?

    <p>Presence of a triple bond with greater electronegative difference</p> Signup and view all the answers

    Which functional group is known for undergoing addition reactions exclusively?

    <p>Alkyne</p> Signup and view all the answers

    Why are alkynes more reactive than alkenes?

    <p>Alkynes have two pi bonds.</p> Signup and view all the answers

    Which property of alkynes contributes to their higher boiling point compared to alkenes and alkanes?

    <p>Multiple pi bonds</p> Signup and view all the answers

    What reaction can alkynes undergo that is not possible for alkanes?

    <p>Addition reactions</p> Signup and view all the answers

    Why do alkynes have higher reactivity than alkanes?

    <p>Alkynes have two pi bonds for electrons to interact.</p> Signup and view all the answers

    What can alkynes not undergo due to their carbon-carbon triple bond structure?

    <p>Rearrangement reactions</p> Signup and view all the answers

    Which application is NOT associated with alkynes?

    <p>Ripening fruit</p> Signup and view all the answers

    In what types of solvents are alkynes soluble?

    <p><strong>O</strong>rganic solvents</p> Signup and view all the answers

    Which bonding characteristic contributes significantly to the high reactivity of alkynes?

    <p>Existence of <strong>P</strong>i bonds</p> Signup and view all the answers

    Which reaction type does the carbon-carbon triple bond in alkynes prevent?

    <p>E<strong>l</strong>imination reactions</p> Signup and view all the answers

    What makes alkynes slightly more polar than alkenes?

    <p>Significant <strong>E</strong>lectronegative difference</p> Signup and view all the answers

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