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 (B)</p> Signup and view all the answers

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

<p>Pi bond (A)</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 (D)</p> Signup and view all the answers

Why are alkynes more polar than alkenes?

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

Which functional group is known for undergoing addition reactions exclusively?

<p>Alkyne (B)</p> Signup and view all the answers

Why are alkynes more reactive than alkenes?

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

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

<p>Addition reactions (C)</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. (C)</p> Signup and view all the answers

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

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

Which application is NOT associated with alkynes?

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

In what types of solvents are alkynes soluble?

<p><strong>O</strong>rganic solvents (C)</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 (C)</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 (D)</p> Signup and view all the answers

What makes alkynes slightly more polar than alkenes?

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