310MSp08Exam2Key

310MSp08Exam2Key - Bocknack CH 310M/318M Spring 2008...

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Part I Answers & Scoring How to read this table : In the first three columns, you’ll find the question number, the maximum points possible, and the correct answer choice. The columns labeled “A” through “J” indicate the points awarded for the problem if this letter was the choice indicated on the answer sheet. Please check the Blackboard gradebook to see how you answered the Part I questions, and to check your raw score (out of 154 points possible) for Part I of the exam. Part I answer sheets will not be returned, and no regrades are possible on Part I of the exam!!! Question Max. Points Correct A B C D E F G H I J 1 4 B 0 4 0 0 0 0 0 0 0 0 2 4 A 4 0 0 0 0 0 0 0 0 0 3 4 C 0 0 4 0 0 0 0 0 0 0 4 4 D 0 0 0 4 0 0 0 0 0 0 5 5 A 5 0 0 0 0 0 0 0 0 0 6 5 C 0 0 5 0 0 0 0 0 0 0 7 5 D 0 0 0 5 0 0 0 0 0 0 8 5 C 0 0 5 0 0 0 0 0 0 0 9 4 C 0 0 4 0 0 0 0 0 0 0 10 4 D 0 0 0 4 0 0 0 0 0 0 11 4 B 0 4 0 0 0 0 0 0 0 0 12 4 F 0 0 0 0 0 4 0 0 0 0 13 4 F 0 0 0 0 0 4 0 0 0 0 14 5 E 0 0 0 0 5 0 0 0 0 0 15 5 B 2 5 0 0 0 0 0 0 0 0 16 5 G 0 0 0 2 0 0 5 0 0 0 17 3 B +3 for A if Q14 = B or G or H or I +3 for B if Q14 = A or C or D or E or F or J 18 3 A +3 for A if Q15 = B or G or H or I or J +3 for B if Q15 = A or C or D or E or F 19 3 A +3 for A if Q16 = B or F or G or H or I or J +3 for B if Q16 = A or C or D or E 20 5 B 0 5 0 0 0 0 0 0 0 0 21 5 C 0 0 5 0 0 0 0 0 0 0 22 5 D 0 0 0 5 0 0 0 0 0 0 23 5 C 0 0 5 0 0 0 0 0 0 0 24 5 E +5 for A if Q23 = A ; +5 for B if Q23 = B ; +5 for E if Q23 = C 25 5 A 5 0 0 0 0 0 0 0 0 0 26 5 B 0 5 0 0 0 0 0 0 0 0 27 5 F +5 for C if Q26 = A ; +5 for F if Q26 = B ; +5 for A if Q26 = C 28 5 A 5 0 0 0 0 0 0 0 0 0 29 5 C 0 0 5 0 0 0 0 0 0 0 30 5 B 0 5 0 0 0 0 0 0 0 0 31 3 D 0 0 0 3 0 0 0 0 0 0 32 5 B 0 5 0 0 0 0 0 0 0 0 33 3 A 3 0 0 0 0 0 0 0 0 0 34 5 A 5 0 0 0 0 0 0 0 0 0 35 3 E 0 0 0 0 3 0 0 0 0 0 Bocknack CH 310M/318M – Spring 2008 MIDTERM EXAM #2 ANSWER KEY
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9 Part II – Write your answers to all questions on this page in the space provided. If you use a pen, only blue or black ink is acceptable!!! PLEASE READ EACH QUESTION VERY CAREFULLY !!! In Questions 36 through 39, draw a line–angle structure that corresponds to the name given. In each structure that you draw, the stereochemistry needs to be shown clearly and unambiguously. Use wedges, dashed wedges, and normal lines where appropriate to show the stereochemistry. Only structures written in the boxes provided will be graded! Make use of the scratch paper! 36. (6 points) ( R )-6-Iodo-1-heptene 37. (6 points) trans -4-Octene 38. (8 points) cis -1,6-Dimethylbicyclo[4.3.0]nonane 39. (8 points) (2 E ,5 Z )-3,5-Dimethyl-2,5-octadiene In Questions 40 and 41, the names given are incorrect . Use the incorrect name to draw a line-angle structure in the top, larger box. Each line-angle structure is worth 4 points. Then, write the correct name of the compound in the small box that appears below the large box. Each correct name is worth 3 points. 40. 2-Methyl-4-methylene-2-hexene 41. 1,6-Dimethyl-1,5-cyclohexadiene Page Total Part II continues on Page 10… I 2-Ethyl-4-methyl-1,3-pentadiene 2,3-Dimethyl-1,3-cyclohexadiene
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10 Part II – Write your answers to all questions on this page in the space provided. If you use a pen, only blue or black ink is acceptable!!! PLEASE READ EACH QUESTION VERY CAREFULLY !!!
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This test prep was uploaded on 04/09/2008 for the course CH 310M taught by Professor Iverson during the Spring '05 term at University of Texas.

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310MSp08Exam2Key - Bocknack CH 310M/318M Spring 2008...

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