Organic Chemistry Alkenes Quiz
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Questions and Answers

What is the main characteristic of alkenes?

  • They are hydrocarbons that form rings.
  • They are saturated hydrocarbons.
  • They contain one or more carbon-carbon double bonds. (correct)
  • They contain only carbon-carbon single bonds.

    • Which of the following terms describes a positive charge on a carbon atom with only three bonds?

  • Oxonium Ion
  • Cyclic Compound
  • Alkene
  • Carbocation (correct)

    • What does Markovnikov’s Rule state regarding the addition of HX to an alkene?

  • Halogen adds to the more substituted carbon.
  • Hydrogen adds to the carbon with fewer hydrogens.
  • Hydrogen adds to the carbon with more hydrogens. (correct)
  • Halogen adds to the less substituted carbon.

    • Which compound is characterized by an -O-O- bond?

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

    What is the definition of a polymer?

    <p>A long chain of monomers connected together.</p> Signup and view all the answers

    What distinguishes cis-trans isomers from one another?

    <p>The arrangement of substituents around a double bond or ring</p> Signup and view all the answers

    Which of the following is NOT a characteristic of a catalyst?

    <p>Is consumed during the reaction</p> Signup and view all the answers

    What type of hydrocarbon does thermal cracking convert into unsaturated hydrocarbons?

    <p>Saturated hydrocarbons</p> Signup and view all the answers

    What role does a catalyst play in a chemical reaction?

    <p>It lowers the activation energy needed for the reaction.</p> Signup and view all the answers

    Which of the following statements best describes alkanes?

    <p>They have only carbon-carbon single bonds.</p> Signup and view all the answers

    What is the key characteristic of cis-trans isomers?

    <p>They have the same connectivity but different spatial arrangements.</p> Signup and view all the answers

    Which type of hydrocarbon is characterized by having a triple bond?

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

    What does Markovnikov's Rule state about the addition of water to an alkene?

    <p>The hydroxyl group will always attach to the more substituted carbon.</p> Signup and view all the answers

    What defines a monomer in the context of polymers?

    <p>A single molecule capable of forming a polymer.</p> Signup and view all the answers

    What is a characteristic feature of an oxonium ion?

    <p>It bears a positive charge with oxygen bonded to three other atoms.</p> Signup and view all the answers

    What process is thermal cracking primarily used for?

    <p>Converting saturated hydrocarbons to unsaturated hydrocarbons plus H2.</p> Signup and view all the answers

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