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3.13: Quiz 2C

  • Page ID
    19096
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    1. Clearly indicate true (T) or false (F) for the following statements (2 pts each):
    _____ A tert-butyl ethyl ether molecule has 5 carbon atoms.
    _____ The staggered conformation of ethane is more stable than the eclipsed form of ethane because there is less steric strain and electron repulsion.
    _____ A molecule containing only C-H bonds has hydrogen-bonding interactions.
    _____

    A sigma bond is stronger than a hydrogen bond.

    1. Multiple Choice: (2 pts each)
      1. Where are the two lone pairs of electrons of the oxygen atom in an alcohol molecule located?
        1. Box.pngin two s orbitals
        2. in two p orbitals
        3. in two sp orbitals
        4. in two sp3 orbitals
        5. in two sp2 orbitals
      2. Box.pngWhich of the following conformations of butane is the most stable?

    2ii.png

    1. Box.pngWhich of the following has the greatest van der Waal's interaction between molecules of the same kind?

    2iii.png

    1. Box.pngWhich of the following will NOT form hydrogen bonds between its molecules?

    2iv.png

    1. (6 pts) You have obtained a summer internship with a pharmaceutical company and they have a secret new sedative compound that can penetrate the non-polar membranes of cells better then current drugs on the market. Which of the following compounds will be more effective as a sedative? Circle your answer and provide a brief explanation for your answer.

    3a.png

    1. (6 pts) Ethanol and butylamine have the same boiling point, even though they have different numbers of carbon atoms. Consider the molecular interactions for butylamine and ethanol and explain why they have the same boiling point.

    4.png

    1. (6 pts) Provide a brief explanation why a C-C single bond can freely rotate but a C=C double bond cannot. Please include any relevant orbital drawing in your explanation.

      1. (4 pts) Each of the following compounds has important nutrition and health benefits. Label whether the indicated alkene in each of the following is the cis or trans form.

    6a.png

    1. (2 pts) Do you predict that these vitamins (from part 6a) are fat-soluble or water-soluble?
    1. (4 pts) Provide a brief explanation for your answer in part 6b.

    3.13: Quiz 2C is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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