General Chemistry II: Exam 1

22 Questions | Total Attempts: 366

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General Chemistry II: Exam 1 - Quiz

Organic chem exam 1


Questions and Answers
  • 1. 
    Draw a primary, secondary, and tertiary amine.
  • 2. 
    Draw a primary, secondary and tertiary alcohol.
  • 3. 
    Which of the following are representations of the same molecule?(i) CH3CH2CH2CH2CH2CH2(ii) CH3     CH2CH2CH2CH2CH3(iii) CH2CH2CH2      CH3       CH2CH3
    • A. 

      Only (i) and (ii)

    • B. 

      Only (i) and (iii)

    • C. 

      Only (ii) and (iii)

    • D. 

      All of them

  • 4. 
    Which of the following explains why alkanes are called saturated hydrocarbons?
    • A. 

      They contain the maximum possible number of hydrogen atoms

    • B. 

      They are the most highly reactive organic compounds

    • C. 

      They have dissolved to the maximum extent possible

    • D. 

      They are good solvents

  • 5. 
    Compounds which contain a carbon-carbon triple bond are classified as which of the following?
    • A. 

      Arenes

    • B. 

      Alkanes

    • C. 

      Alkenes

    • D. 

      Alkynes

  • 6. 
    In organic compounds a halogen atom can replace which of the following?
    • A. 

      Hydrogen

    • B. 

      Oxygen

    • C. 

      Nitrogen

    • D. 

      Carbon

  • 7. 
    Which of the following is a gas at room temperature and pressure?
    • A. 

      Hexane

    • B. 

      Pentane

    • C. 

      Butane

    • D. 

      None of them

    • E. 

      3-

  • 8. 
    What is the IUPAC name of:       CH2CH2CH2CH3CH3CCH2CH3       CH2CH2CH3
    • A. 

      3-methyl-3-propylheptane

    • B. 

      2-ethyl-2-propylhexane

    • C. 

      4-ethyl-4-methyloctane

    • D. 

      None of these

  • 9. 
    Which of the following is true when there is a single substituent on cyclohexane?
    • A. 

      The substituent will prefer to be in the axial position

    • B. 

      The substituent has no particular preference for either the axial or equatorial position

    • C. 

      The situation will vary, depending on the identity of the substituent

    • D. 

      The substituent will prefer to be in the equatorial position

  • 10. 
    How many moles of oxygen are consumed by the complete combustion of one mole of propane, C3H8?
    • A. 

      7

    • B. 

      1

    • C. 

      5

    • D. 

      3

  • 11. 
    Which of the following has the highest boiling point?
    • A. 

      Hexane

    • B. 

      Octane

    • C. 

      Nonane

    • D. 

      Heptane

  • 12. 
    In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?
    • A. 

      Alcohols

    • B. 

      Aldehydes

    • C. 

      Amines

    • D. 

      All of these

  • 13. 
    Which of the following is a constitutional isomer of butane, CH3(CH2)2CH3 ?
    • A. 

      CH3CHCH3 CH3

    • B. 

      CH3 CH2CH2CH3

    • C. 

      CH3CH2CH2 CH3

    • D. 

      None of these

  • 14. 
    In which of the following types of reactions is sulfuric acid used as a catalyst?
    • A. 

      Hydration

    • B. 

      Hydrohalogenation

    • C. 

      Halogenation

    • D. 

      Hydrogenation

  • 15. 
    When listing the substituents in correct order, which of the following should not be ignored?
    • A. 

      Iso

    • B. 

      Sec-

    • C. 

      Di-

    • D. 

      None, all should be ignored

  • 16. 
    Which of the following chemicals, when pure, will have different properties if it is synthesized in the laboratory than if it is obtained from a natural source?
    • A. 

      Ethanol

    • B. 

      Vitamin C

    • C. 

      Taxol

    • D. 

      None of these

  • 17. 
    Which isomer of pentane has the lowest boiling point?
    • A. 

      2,2-dimethypropane

    • B. 

      Pentane

    • C. 

      2-methylbutane

    • D. 

      None, they all have the same boiling point

  • 18. 
    Compounds which contain a carbon-carbon double bond are classified as which of the following?
    • A. 

      Alkanes

    • B. 

      Alkynes

    • C. 

      Arenes

    • D. 

      Alkenes

  • 19. 
    Alkanes belong to which class of hydrocarbons?
    • A. 

      Aromatic

    • B. 

      Unsaturated

    • C. 

      Saturated

    • D. 

      Alkali

  • 20. 
    What is the IUPAC name of:
    • A. 

      Isopropylpropylcyclohexane

    • B. 

      1,1-dipropylcyclohexane

    • C. 

      1-isopropyl-1-propylcyclohexane

    • D. 

      None of these

  • 21. 
    Which of the following is the most characteristic reaction of alkenes?
    • A. 

      Addition

    • B. 

      Oxidation

    • C. 

      Reduction

    • D. 

      Substitution

  • 22. 
    In organic compounds which of the following elements normally forms three covalent bonds?
    • A. 

      Hydrogen

    • B. 

      Nitrogen

    • C. 

      Carbon

    • D. 

      Oxygen

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