Exam 3 - Fall 2001

Exam 3 - Fall 2001 - Organic Chemistry Chem 38 Practice...

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Organic Chemistry: Chem 38 Practice Exam 3 A There are 28 questions on this exam. Check that you have done all of the problems and filled in the first 28 bubbles on the scantron. Most questions are worth 4 points; there are several two-point questions clearly labeled in the text. The maximum score on this exam is 100 points. Instructions Answer sheet 1) On the scantron, you need to clearly fill: y o u r name and your student number , section number Section 001, 12:20 pm lecture Section 002, 3:35 pm lecture test form (white = test form A; yellow = test form B). 2) Use a #2 pencil Exam policy 1) Molecular models are allowed, calculators are not allowed. 2) There some blank pages at the end of the test that can be used as scratch paper. 3) Relevant tables, including the periodic table, are attached at the end of this exam. 4) Numerical values given in one question apply only to this question, and should not be used in other questions, unless there is a specific instruction to do so. If necessary, the values from the provided tables should be used, even if they differ from values that you may remember from different sources. 5) Feel free to take this copy of the exam with you. The answer key will be posted on the web after the exam (under "News"). Hints 1) As you read the question, underline or circle key words to highlight them for yourself. 2) Questions have only one correct answer. No partial credit will be given. 3) There is no penalty for guessing. 1
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Notes: I. When listing reagents, a slash (/) is used between reagents that are employed simultaneously, and a semicolon (;) is used between reagents that are employed in a stepwise fashion. II. The stereochemistry in structural drawings and reaction schemes is not shown, unless explicitly indicated with wedge-bond designations. For example: Br OH Br OH stereochemistry not shown stereochemistry explicitly shown III. Abbreviations used: Me = methyl, Et = ethyl, Pr = propyl, Bu = butyl, Pe = pentyl, Ph = phenyl, AcO = acetate (H 3 CCOO). ******************************************************************************************** 1 . (4 pts) Radicals can be compared according to their selectivity in hydrogen abstractions based on the reactivity- selectivity principle. Which of the following radicals would be expected to have selectivity very similar to that of the H· radical?
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This note was uploaded on 06/16/2009 for the course CHEM 210 taught by Professor Maslak,przemyslaw during the Fall '08 term at Penn State.

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Exam 3 - Fall 2001 - Organic Chemistry Chem 38 Practice...

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