Chapter4- Aromatic Compounds- Pharmacgy

24 Questions | Total Attempts: 314

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Chapter4- Aromatic Compounds- Pharmacgy

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Questions and Answers
  • 1. 
    What is the name of the following compound?
    • A. 

      2-ethylphenol

    • B. 

      3-ethylphenol

    • C. 

      4-ethylphenol

    • D. 

      3-ethylbenzene

  • 2. 
    The most common reactions involving aromatics are ________ reactions.
    • A. 

      Addition 

    • B. 

      Elimination 

    • C. 

      Oxidation 

    • D. 

      Substitution 

  • 3. 
    What reagent is used in the bromination of benzene?
    • A. 

      HNO3, H2SO4

    • B. 

       Br2

    • C. 

      HNO3

    • D. 

      H2SO4

  • 4. 
    The suitable set of reagents needed to carry out the following transformation is
    • A. 

      CH3CH2Cl/AlCl3

    • B. 

      CH3COCl/AlCl3

    • C. 

      CH3CH2CH2Cl/AlCl3

    • D. 

      CH3Cl/AlCl3

  • 5. 
    What is the role of FeCl3 in chlorination of benzene?
    • A. 

      Oxidizing agent

    • B. 

      Consumed reactant

    • C. 

      Catalyst

    • D. 

      Base

  • 6. 
    What is the electrophile in sulfonation?
    • A. 

      HSO4-

    • B. 

      HSO3-

    • C. 

      SO3

    • D. 

      HSO3+

  • 7. 
    What are the reagent and the catalyst used for nitration of benzene?
    • A. 

      HNO3

    • B. 

      NO2+

    • C. 

      HNO3 /H2SO4

    • D. 

      HNO3 /SO3

  • 8. 
    In Fridel-Craft acylation, the catalyst is
    • A. 

      FeCl3

    • B. 

      AlCl3

    • C. 

      Al+3

    • D. 

      H2SO4

  • 9. 
    Which of the following reagents are used to prepare this compound from benzene?
    • A. 

      CH3CH2CH2Cl/AlCl3

    • B. 

      CH3CH2COCl/FeCl3

    • C. 

      CH3CH2COCl/AlCl3

    • D. 

      (CH3)2CHCOCl/AlCl3

  • 10. 
    What is the major product for the following reaction ?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 11. 
    The product of the following reaction is ?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

  • 12. 
    In isopropyl benzene the isopropyl group is ?
    • A. 

      A deactivator and o,p- director

    • B. 

      An activator and m-directing 

    • C. 

      A deactivator and m-director 

    • D. 

      An activator and o,p-director 

  • 13. 
    Which carbon atom will have the highest reactivity toward nitration ?
    • A. 

      1

    • B. 

      3

    • C. 

      2

    • D. 

      4

  • 14. 
    Rank the following intermediates in order of increasing stability 
    • A. 

      1>4>2>3

    • B. 

      4>1>2>3

    • C. 

      4>2>1>3

    • D. 

      1>4>3>2

  • 15. 
    The most stable intermediate is ?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 16. 
    Arrange the following compounds according decreasing reactivity towards electrophilic aromatic substitution reaction ? 
    • A. 

      4>1>2>3

    • B. 

      4>2>1>3

    • C. 

      3>2>4>1

    • D. 

      3>2>1>4 

  • 17. 
    Which of the following is not a resonance structure for the compound shown ?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 18. 
    Which group of the following is Ortho-Para directing 
    • A. 

      -CN

    • B. 

      -NO2

    • C. 

      -NH3+

    • D. 

      -NH2

  • 19. 
    Rank the compounds in each group according to their reactivity toward electrophilic substitution  1- Chlorobenzene  2-O-dichlorobenzene  3-benzene 
    • A. 

      3>1>2

    • B. 

      1>3>2

    • C. 

      2>1>3

    • D. 

      3>2>1

  • 20. 
    Name the following structure 
    • A. 

      Dibenzyl

    • B. 

      P-phenylstyrene

    • C. 

      Cyclobutylbenzel 

  • 21. 
    Name the following compound 
    • A. 

      2,3,4,5-tetrabromo cumene

    • B. 

      1,2,3,4-tetrabromo-5-isopropyl 

    • C. 

      2,3,4,5-tetrabromo styrene 

  • 22. 
    Using the aromatic starting material device a synthesis of (P-nitroethylbenzene)
    • A. 

      We start by nitration then adding the ethyl group 

    • B. 

      We start by adding the ethyl group the nitration 

  • 23. 
    Device a synthesis of (P-bromonitrobenzene)
    • A. 

      We start by the bromonation the nitration 

    • B. 

      We start by nitration and then bromonation 

  • 24. 
    Which step is considered the slowest ? 
    • A. 

      A to E

    • B. 

      A to C

    • C. 

      E to D

    • D. 

      C to A