Organic Chem Ch 15: Radical Reactions

10 Questions | Total Attempts: 817

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Chemistry Quizzes & Trivia

Quiz on the concepts, reactions, reactants, mechanisms, and terms from Organic Chemistry Chapter 15 (Radical Reactions).


Questions and Answers
  • 1. 
    • A. 

      ĊH3

    • B. 

      R-ĊH2

    • C. 

      R2-ĊH

    • D. 

      R3-Ċ

    • E. 

      CH2=CH-ĊH2

  • 2. 
    What is the geometry of a carbon radical?
    • A. 

      Linear

    • B. 

      Tetrahedral

    • C. 

      Trigonal planar

    • D. 

      Bent

    • E. 

      Trigonal pyramidal

  • 3. 
    What is the orbital hybridization of a carbon radical?
    • A. 

      P

    • B. 

      Sp³

    • C. 

      Sp²

    • D. 

      Sp

  • 4. 
    • A. 

      Lower

    • B. 

      Higher

  • 5. 
    Alkanes react with halogens in the presence of __________ to form alkyl halides.
    • A. 

      Light or heat

    • B. 

      Hv or Δ

    • C. 

      Peroxides

    • D. 

      O3

  • 6. 
    What are the important differences between chlorination and bromination?
    • A. 

      Chlorination is faster than bromination.

    • B. 

      Chlorination is slower than bromination.

    • C. 

      Chlorination yields a mixture of products, while bromination usually yields only one major product.

    • D. 

      Chlorination usually yields only one major product, while bromination yields a mixture of products.

  • 7. 
    • A. 

      Less reactive reagents are more selective.

    • B. 

      More reactive reagents are more selective.

  • 8. 
    Describe the 2-step method for converting an alkane to an alkene.
    • A. 

      Oxidation with ROOR followed by elimination of OH.

    • B. 

      Radical halogenation with Br2 followed by elimination of HBr.

    • C. 

      Allylic bromination with NBS followed by elimination of HBr.

    • D. 

      Radical addition of HBr followed by substitution of Br-.

  • 9. 
    What is/are the monohalogenation product(s)?n-butane + chlorine + hv  -->    ______________
    • A. 

      1-chlorobutane

    • B. 

      (R)-2-chlorobutane

    • C. 

      (S)-2-chlorobutane

    • D. 

      (R,S)-2,3-dichlorobutane

    • E. 

      All of the above

  • 10. 
    A radical halogenation reaction at a stereogenic center results in ________________ .
    • A. 

      No change in the stereochemistry of the products.

    • B. 

      A racemic mixture of enantiomers

    • C. 

      A pair of diastereomers

    • D. 

      An achiral product