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Practice On IUPAC


Start practice on IUPAC




1. The IUPAC name of :


  1. 7-Bromobicyclo [4,2,0]-2-octene
  2. 2-Bromobicyclo [4,2,0]-5-octene
  3. 8-Bromobicyclo [2,4,0]-4-octene
  4. 6-Bromobicyclo [4,2,0]-1-octene
     
ans : a

2. What is the IUPAC name of the following compound ?


  1. 1-phenyl-3,4,dimethyl butanol
  2. 4-phenyl-3-di-2-methyl butanol
  3. 3-benzyl-2,4-dimethyl-2-pentanol
  4. 4-benzyl-3di-2 methyl-2-butanol
     
ans : c

3. The IUPAC name of :

  1. (2E,4E,6Z)-octa-2, 4,6- triene
  2. (2E,4E,6E)-octa-2, 4,6- triene
  3. (2Z,4E,6Z)-octa-2, 4,6- triene
  4. (2Z,4Z,6Z)-octa-2, 4,6- triene
     
ans : c

4. The IUPAC name of :

  1.  2,4-Hexanediol
  2.  3-Ethyl-2, 4-hexanediol
  3.  2,4-Hexanediol-2-ethyl
  4. 3,3-Diethyl-1,3-butanediol
     
ans : c

5. The IUPAC name of :

  1. 1,1-Dimethyl-2-propene
  2. 3-Methyl-1-butene
  3.  2-Vinylpropane
  4.  1- Isopropylethylene
     
ans : b

6. All the members of a homologous series have same .
  1. Molecular mass
  2. molecular formula
  3. Physical properties
  4. General molecular formula
     
ans : d

7. The IUPAC name of the given compound.

  1. 3-Ethyl-1-cyclobuten-2-ol
  2. 4-Ethyl-2-cyclobuten-1-ol
  3. 2-Ethyl-3-cyclobuten-1-ol
  4. 4-Ethyl-1-cyclobuten-3-ol
     
ans : b

8. Which is not correctly named according to IUPAC nomenclature:-


     
ans : 4

9. The IUPAC name of


  1. N-Ethyl-N,2-dimethyl-4-hexanamine
  2. N,4-Diethyl-N, 2-dimethyl-4-butanamine
  3. N-Ethyl-N,5-dimethyl-3-hexanamine
  4. 3-(Ethyl methyl amino)-5-methyl hexane
     
ans : c

10. The IUPAC name of the given structure.


  1. N-Bromo-N-chloroacetamide
  2. N-Bromo-N-chloroethanamide
  3. N-Chloro-N-bromoethanamide
  4. N-Chloro-N-bromoacetamide
     
ans : b

11. The IUPAC name of :

  1. 3,3-Dimethyl-5-carboxylpentanoyl chlorid
  2. 5- Carboxy-3,3-dimethylpentanoyl chloride
  3. 5-Chloroformyl-3,3-dimethylpentanoic acid
  4. 4-Chloroformyl-3,3-dimethylbutanoic acid
     
ans : d

12. The IUPAC name of :


  1. N-Cyclohexyl benzamide
  2. N-Phenyl-N-cyclohexylmethanamide
  3. N-Phenylcyclohexane carboxamide
  4. N-cyclohexyl-N-phenylmethylamide
     
ans : c

13. The IUPAC name of given compound :

  1. 3-Bromo-5-chloro-1-methylcyclohexanol
  2. 5-Bromo-3-chloro-1-methylcyclohexanol
  3. 1-Bromo-5-chloro-3-methyl-3-cyclohexanol
  4. 5-Bromo-1-chloro-3-methyl-3-cyclohexanol
     
ans : a

14. 2-Butenyl group has the structure:


     
ans : c

15. Number of 3' carbon and 1' hydrogen, respectively, in the following structure are


  1.  3 and 21
  2.  3 and 23
  3.  2 and 21
  4.  3 and 18
     
ans : a

16. Which of the following carbon skeleton represents isobutylamine ?


  1. A and B
  2.  B and C
  3.  A and D
  4.  D and C
     
ans : b

17. The structure of isobutyronitrile:


     
ans : b

18. Given the IUPAC name of


  1. 2,2-Dimethyl-3-propyl-4-iso propyl heptane
  2. 4-Isopropyl-5-t-butyl octane
  3. 4-t-Butyl-5-isopropyl octane
  4. 2-Methyl-3-propyl-4-isopropylheptane
     
ans : c

19. The IUPAC name of


  1. N-formyl-N-ethyl amine
  2. N-aldo ethanamine
  3. 1-ethylaminomethanal
  4. N-ethyl methanamide
     
ans : d

20.  IUPAC name of


  1. 3-ethyl-4-methyl hex-5-en-2-ol
  2. 4-ethyl-3-methyl hex-1-en-ol
  3. 3-methyl-4-ethyl hex-1-en-5-ol
  4. 4-methyl-3-ethyl hex-5-en-2-ol
     
ans : a

21. The structure with correct numbering is


     
ans : d

22. IUPAC name of


  1.  Methyl-2,2-acetyl ethamoate
  2. 2,2-acetyl-1-methoxy ethanone
  3. Methyl-2-acetyl-3-oxobutanoate
  4. Methyl-2-ethanoyl-3-oxo-butanoate
     
ans : d

23. In the structure of 4-isopropyl-2,4,5-trimethylheptane, number of 1' , 2' , and 3' H's are, respectively.
  1. 18,5,4
  2. 21,4,3
  3. 18,4,3
  4. 19,5,3
     
ans : b

24. In methane molecule, the hydrogen atoms around carbon are arranged as
  1. Square planer
  2. Triangular
  3. Tretrahedral
  4. Octahedral
     
ans : c

25. Which hybrid orbital will form the following compound:


  1. sp2 and sp3
  2. sp and sp2
  3. sp2 and sp2
  4. only sp3
     
ans : c

26. In benzene the total number of sigma bond
  1. 3
  2. 6
  3. 9
  4. 12
     
ans : d

27. Number of unhybridized orbitals in vinyl acetylene are
  1. 2
  2. 3
  3. 4
  4. 6
     
ans : d

28.How many pi bonds are present in napthalene molecule
  1. 3
  2. 4
  3. 5
  4. 6
     
ans : c

29. The IUPAC name of given compound


  1. 1, 1-dimethyl-3-cyclohexanol
  2. 1,1-dimethyl-3-hydroxy cyclohexane
  3. 3,3-dimethyl-1-cyclohexanol
  4. 3,3-dimethyl-1-hydroxy cyclohexane
     
ans : c

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