12 Chemistry Unit-20 Organic Nitrogen Compounds

20 Questions

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12 Chemistry Unit-20 Organic Nitrogen Compounds

Prepared by: G. KUPPUSWAMY, P. G. Asst. , Pachaiyapp's HSS, Kanchipuram.


Questions and Answers
  • 1. 
    P { margin-bottom: 0.08in; } P { margin-bottom: 0.08in; } Bromo ethane reacts with silver nitrite to give a) C2H5NO2                 b) C2H5-O-NO c) C2H5Ag + NaBr        d) C2H5NC
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 2. 
    P{margin-bottom:O             P { margin-bottom: 0.08in;}            O P { margin-bottom: 0.08in; }                                                            O                                                                                                                  â•‘  The isomerism exhibited by CH3-CH2-N⟶O   and CH3-CH2-ON=O   a) position     b) chain    c) functional     d) tautomerism
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 3. 
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 4. 
    P { margin-bottom: 0.08in; } P { margin-bottom: 0.08in; } When nitromethane is reduced wtih Zn dust + P { margin-bottom: 0.08in; } NH4Cl in neutral medium, we get a)  CH3NH2           b)  C2H5NH2 c)  CH3NHOH      d)  C2H5COOH
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 5. 
    The compound that is most reactive towards electrophilic nitration is a) Toluene     b) benzene   c) benzoic acid   d) nitrobenzene
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 6. 
    P { margin-bottom: 0.08in; } Nitromethane condenses with acetaldehyde to give a) nitro propane              b) 1-nitro-2-propanol c) 2-nitro-1-propanol      d) 3-nitro propanol  
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 7. 
    P { margin-bottom: 0.08in; } Which of the following compounds has the  smell of bitter almonds ?   a) aniline                                b) nitro methane  c) benzne sulphonic acid        d) nitrobenzene
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 8. 
    P { margin-bottom: 0.08in; } Nitration of nitrobenzene results in a)  o-dinitro benzene      b) 1,3,5-trinitro benzene c)   p-dinitro benzene     d) m- dinitro benzene
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 9. 
    P{margin-bottom:0.08in;} Nitrobenzene on electrolytic reduction in con.sulphuric acid, the intermediate formed  is a)  C6H5NH-NHC6H5            b)  C6H5-NHOH P{margin-bottom:0.08in;} c) C6H5N=N-C6H5                 d) C6H5HSO4
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 10. 
    P { margin-bottom: 0.08in; } Electrophile used in the nitration of benzene is a) hydronium ion             b) sulphonic acid c) nitronium ion               d) bromide ion
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 11. 
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 12. 
    The  basic character of amines is due to the a)  tetrahedral structure           b)  presence of nitrogen atom c)  lone pair of electrons on nitrogen atom d)  high electro negativity of nitrogen
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 13. 
    The organic compound that undergoes  carbyl amine
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 14. 
    Primary amine acts as a)  Electrophile      b)  Lewis base    c)  Lewis acid   d)  Free radical
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 15. 
    Oxidation of aniline with acidifiedpotassium dichromate gives a)  p-benzo quinone    b) benzoic acid c)  benzaldehyde         d)  benzoic acid
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 16. 
    Whichone of the following is a secondary amine ? a)  aniline                            b)  diphenyl amine   c)  sec.butylamine            d)  tert.butylamine
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 17. 
    C6H5NH  X. Identify X. a) C6H5Cl                 b) C6H5NHOH c) C6H5N2Cl             d) C6H5OH
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 18. 
    Which of the following will not undergo diazotisation ? a) m-toluidine  b)  aniline  c  p-amino phenol  d)  benzyl amine
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 19. 
    Aniline differs from ethylamine by the reaction with a) metallic sodium      b)  an alkyl halide c)  chloroform and caustic potash  d)  nitrous acid
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 20. 
    When aqueous solution of benzene diazonium chloride is boiled the product formed is a)  benzyl alcohol     b)  benzene + c)  phenol                   d)  phenyl hydroxylamine
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4