CHM2210F11EXIIIV1

CHM2210F11EXIIIV1 - Panther #: NAME: FLORIDA INTERNATIONAL...

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Panther #: NAME: FLORIDA INTERNATIONAL UNIVERSITY Department of Chemistry & Biochemistry CHM 2210-U01, U02 – ORGANIC CHEMISTRY I Fall 2011 Dr. Keller, Dr. Landrum EXAM III (V1)
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CHM 2210-U01U02, Fall 2011 Exam III (V1), Page 2
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CHM 2210-U01U02, Fall 2011 Exam III (V1), Page 3 MULTIPLE CHOICE QUESTIONS: Choose the best answer to each question and bubble it in on the Scantron answer sheet. Marks on the test pages will NOT be graded. 1. How are the molecules shown below related to each other? H CH 3 CH 3 CH 3 CH 3 H H H H CH 3 CH H and CH 3 CH 3 a. They are constitutional isomers. b. They are identical. c. They are resonance structures. d. They are not isomers; they are different compounds. e. They are stereoisomers. 2. They methyl groups in cis -1,2-dimethyl- cyclohexane will occupy what positions in the most stable conformation? a. axial, axial b. equatorial, equatorial c. equatorial, axial d. None of the above 3. A correct IUPAC name for the following compound is: Br a. 3,6,7-trimethyl-4-bromo-1-octene b. 4-bromo-3-methyl-6-isopropyl-1-heptene c. 4-bromo-3,6,7-trimethyl-1-octene d. 4-bromo-6-isopropyl-3-methyl-1-heptene e. 4-bromo-6-isopropyl-3,6-dimethyl-1- heptene 4. Ring strain can result from which of the following: a. angle strain b. torsional strain c. small ring size d. two of the above e. all of the above 5. Designate each of the chirality centers in the following compound as R or S: a. a = S; b = S b. a = R; b = S c. a = R; b = R d. a = S; b = R 6. Which isomer of C 5 H 10 would you expect to have the smallest heat of combustion? a. Cyclopentane b. Methylcyclobutane c. 1,1-Dimethylcyclopropane d. cis -1,2-Dimethylcyclopropane e. trans -1,2-Dimethylcyclopropane
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CHM 2210-U01U02, Fall 2011 Exam III (V1), Page 4 7. Select the list that places the substituents from the highest priority to the lowest priority. (highest Left >>>>>> lowest Right) a. -CH 2 Br -Br -Cl CH 3 b. -CH 2 CH 3 -CH 3 -CH 2 OH -H c. -OCH 3 -OH -CH 3 -H d. -CH 2 CH 2 I -CH=CH 2 -CH 3 -H 8. Which of the following statements is true about cis and trans -1,3-dimethylcyclohexane? a. The cis isomer is more stable than the trans isomer because both CH 3 groups occupy an equatorial position. b. The trans isomer is more stable than the cis isomer because the two CH 3 groups are further away from each other. c.
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CHM2210F11EXIIIV1 - Panther #: NAME: FLORIDA INTERNATIONAL...

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