An Quiz For Aspiring Organic Chemists

20 Questions | Total Attempts: 314

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Organic Chemistry Quizzes & Trivia

Organic chemistry Second material exam ​​​​​ Bassil Awaqleh


Questions and Answers
  • 1. 
    Which compound RX reacts MOST rapidly in an SN2 reaction?
    • A. 

      2-bromohexane A) 2-Bromohexane

    • B. 

      B) 1-Bromo-3-methylhexane

    • C. 

      C) 2-Bromo-2-methylhexane

    • D. 

      D) 3-Bromohexane

  • 2. 
    Which of the following is the most reactive as Nucleophile?
    • A. 

      PhO-

    • B. 

      PhS-

    • C. 

      PhCH2O-

    • D. 

      PhCH2NH2

  • 3. 
    Which is the most reactive compound by the SN1 mechanism
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 4. 
    What is the IUPAC name of the following compound?
    • A. 

      A) (2S, 3S)-2,3-dibromopentane

    • B. 

      B) (2S, 3R)-2,3-dibromopentane

    • C. 

      C) (2R, 3S)-2,3-dibromopentane

    • D. 

      D) (2R, 3R)-2,3-dibromopentane

  • 5. 
    How many stereocenters are there in the following molecule?
    • A. 

      2

    • B. 

      0

    • C. 

      3

    • D. 

      1

  • 6. 
    Which of the following groups has the highest priority in the (R,S) system?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 7. 
    Give the product(s) of the following reaction?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      A mixture of A and B

  • 8. 
    Identify the substitution product(s) in the following reaction
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      A mixture of A and B

  • 9. 
    What is the electrophile in the Friedel-Crafts alkylation reaction below?
    • A. 

      AlCl3

    • B. 

      Cl-

    • C. 

      (CH3)3C+

    • D. 

      Benzene

  • 10. 
    Which one of the following compounds undergoes electrophilic aromatic sulfonation at the fastest rate?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 11. 
    Nitration of chlorobenzene has a reaction rate which is __________ than the nitration rate of benzene and gives primarily the _____________ product(s)
    • A. 

      A) faster, ortho/para

    • B. 

      B) faster, meta

    • C. 

      C) slower, ortho/para

    • D. 

      D) slower , meta

  • 12. 
    Identify the major product(s) of the reaction sequence shown below
    • A. 

      A) ortho and para-chloroacetophenone

    • B. 

      B) meta-chloroacetophenone

    • C. 

      C) ortho and para-chlorobenzaldehydeB

    • D. 

      D) meta-chlorobenzaldehydeAns

  • 13. 
    Predict which position of the naphthalene compound below is the most reactive with electrophiles in electrophilic aromatic substitution
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 14. 
    Which of the following statements true? 
    • A. 

      A. All molecules that have chirality centers are chiral

    • B. 

      B. Superimposable structures are enantiomers

    • C. 

      C. All compounds with mirror images are enantiomers Option 3

    • D. 

      d. Isomers that are not superimposable on their mirror images are enantiomers

  • 15. 
    Which of the following structures is different from the other three?
    • A. 

      1

    • B. 

      4

    • C. 

      2

    • D. 

      3

  • 16. 
    Which of the following Fischer projections is different from the other three?
    • A. 

      2

    • B. 

      3

    • C. 

      1

    • D. 

      4

  • 17. 
    The product(s) of the following reaction are ? 
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      A + B

  • 18. 
    What is the MOST reactive alkyl halide for the following reaction?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 19. 
    Azide anion (N3)- is a very good Nu , predict the major product for the following reaction ? 
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 20. 
    In substitution reaction of (CH3)CBr with H2O doubling the concentration of both substance and Nu lead to : 
    • A. 

      Doubling the rate

    • B. 

      Tripling the rate

    • C. 

      No change

    • D. 

      Quadrupling the rate

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