Hydrocarbon Compounds 5/17/11

84 Questions | Total Attempts: 699

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Hydrocarbon Quizzes & Trivia

HYDROCARBON COMPOUNDS 5/17/11


Questions and Answers
  • 1. 
    What is organic chemistry? 
    • A. 

      It is the study of the chemistry of oxygen compounds

    • B. 

      It is the study of the chemistry of carbon compounds.

    • C. 

      It is the study of the chemistry of hydrogen compounds.

  • 2. 
    Organic compounds that contain only carbon and hydrogen are called 
    • A. 

      Hydroxcide

    • B. 

      Carbonoxcide

    • C. 

      Hydrocarbons

  • 3. 
    Alkanes contain only _____________ covalent bonds. 
    • A. 

      Single

    • B. 

      Two

    • C. 

      Three

  • 4. 
    What is the simplest alkane? 
    • A. 

      Hydrogen

    • B. 

      Carbon

    • C. 

      Methane

  • 5. 
    Which 2 statements are true about carbon’s ability to form bonds.?
    • A. 

      Carbon atoms have four valence electrons. Carbon atoms can form stable bonds with each other.

    • B. 

      Carbon atoms always form three covalent bonds. Carbon atoms can form stable bonds with each other.

    • C. 

      Carbon atoms always form three covalent bonds. Carbon atoms can form stable bonds with each other.

  • 6. 
    What are straight-chain alkanes? 
    • A. 

      They contain any number of carbon atoms in a chain bonded together by single covalent bonds. The remaining valence electrons are bonded to carbon atoms.

    • B. 

      They contain any number of carbon atoms in a chain bonded together by single covalent bonds. The remaining valence electrons are bonded to oxygen atoms.

    • C. 

      They contain any number of carbon atoms in a chain bonded together by single covalent bonds. The remaining valence electrons are bonded to hydrogen atoms.

  • 7. 
    The names of all alkanes end with the suffix ______________________ . 
    • A. 

      -kan

    • B. 

      Alk

    • C. 

      -ane

  • 8. 
    Nonane   has 
    • A. 

      Has 9 carbon atoms

    • B. 

      Has 7 carbon atoms

    • C. 

      Has 4 carbon atoms

  • 9. 
    propane 
    • A. 

      Has 8 carbon atoms

    • B. 

      Has 4 carbon atoms

    • C. 

      Has 3 carbon atoms

  • 10. 
    heptane 
    • A. 

      Has10 carbon atoms

    • B. 

      Has 5 carbon atoms

    • C. 

      Has 7 carbon atoms

  • 11. 
    butane 
    • A. 

      Has 1 carbon atoms

    • B. 

      Has 4 carbon atoms

    • C. 

      Has 2 carbon atoms

  • 12. 
    The straight-chain alkanes are a(n) ______________________________ because there is an incremental change of —CH2— from one compound in the series to the next.  
    • A. 

      Homologous series

    • B. 

      Heterogous series

    • C. 

      Mologous series

  • 13. 
    CH3CH2CH2CH2CH3 CH3(CH2)3CH3 C — C — C — C — C    
    • A. 

      Formula for carbon

    • B. 

      Formula for methane

    • C. 

      Formula for pentane

  • 14. 
    The ______________________ system names organic compounds according to their structure. 
    • A. 

      UPIAC

    • B. 

      PACIU

    • C. 

      IUPAC

  • 15. 
    A(n) ______________________ is an atom or group of atoms that replaces hydrogen in a hydrocarbon. 
    • A. 

      Substituent

    • B. 

      Emerged

    • C. 

      Not substituent

  • 16. 
    Alkyl groups are named by removing the-ane ending of the parent hydrocarbon and adding ______________________ to indicate that one ______________________ has been removed. 
    • A. 

      Ly, radon

    • B. 

      Ing, oxygen

    • C. 

      -yl ,hydrogen

  • 17. 
    What is a branched-chain alkane? 
    • A. 

      It is an alkane with one or more alkyl groups.

    • B. 

      It is an alkane with two or more alkyl groups

    • C. 

      It is an alkane with three or more alkyl groups

  • 18. 
    Why are hydrocarbon molecules such as alkanes nonpolar?   
    • A. 

      Hydrocarbon molecules such as alkanes are nonpolar because the electron pair in a carbon–hydrogen or a carbon–carbon bond is shared equally by the nuclei of the atoms involved.

    • B. 

      Water molecules such as alkanes are nonpolar because the electron pair in a carbon–hydrogen or a carbon–carbon bond is shared equally by the nuclei of the atoms involved.

    • C. 

      Carbon molecules such as alkanes are nonpolar because the electron pair in a carbon–hydrogen or a carbon–carbon bond is shared equally by the nuclei of the atoms involved.

  • 19. 
    Hydrocarbons and other nonpolar molecules are not attracted to 
    • A. 

      Radon

    • B. 

      Water

    • C. 

      Oxygen

  • 20. 
    What is an alkene? 
    • A. 

      It is a hydrowater containing one or more carbon–carbon double covalent bonds.

    • B. 

      It is a carbon containing one or more carbon–carbon double covalent bonds.

    • C. 

      It is a hydrocarbon containing one or more carbon–carbon double covalent bonds.

  • 21. 
    Organic compounds that contain fewer than the maximum number of hydrogens in their structures are called ______________________ compounds. 
    • A. 

      Unsaturated

    • B. 

      Saturated

    • C. 

      Multisaturated

  • 22. 
    Which family of hydrocarbons are always saturated compounds? 
    • A. 

      Hydrocarbon

    • B. 

      Alkanes

    • C. 

      Ethyne

  • 23. 
    Hydrocarbons that contain one or more ______________________ covalent bonds between carbons are called alkynes. 
    • A. 

      Four

    • B. 

      Double

    • C. 

      Triple

  • 24. 
    ______________________ is the simplest alkyne, and is also known by the common name ______________________ .  common name ______________________ .   
    • A. 

      Ethyne, acetylene

    • B. 

      Hydrocarbons,acetylene

    • C. 

      Ethyne,Hydrocarbons

  • 25. 
    What are the major attractive forces between alkane, alkene, or alkyne molecules? What physical properties can be explained by these forces? 
    • A. 

      The major forces are semi - weak van der Waals forces. As a result, many of these compounds have very low boiling points, and are gases at room temperature.

    • B. 

      The major forces are strong van der Waals forces. As a result, many of these compounds have very low boiling points, and are gases at room temperature.

    • C. 

      The major forces are weak van der Waals forces. As a result, many of these compounds have very low boiling points, and are gases at room temperature.