Ex3Fl05Ques - Chemistry 310M/318M Dr. Brent Iverson 3rd...

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Unformatted text preview: Chemistry 310M/318M Dr. Brent Iverson 3rd Midterm Nov. 30, 2005 NAME (Print): _____________________________ SIGNATURE: _____________________________ Please Note: This test may be a bit long, but there is a reason. I would like to give you a lot of little questions, so you can find ones you can answer and show me what you know, rather than just a few questions that may be testing the one thing you forgot. I recommend you look the exam over and answer the questions you are sure of first , then go back and try to figure out the rest. Also make sure to look at the point totals on the questions as a guide to help budget your time. Note: You must have your answers written in blue or black pen if you want a regrade!!!! Do not take this in red ink, as that is what we will use to grade it! Please print the first three letters of your last name in the three boxes Please answer the following before you begin: Have you been to a recitation section since the last midterm? ____________ 10 9 8 7 6 5 4 3 2 (23) (12) (18) (20) (35) (27) (22) (22) (22) (19) (14) (15) (12) (261) 11 1 Page Points Total T Score HW 12 14 Pg 1 _____________(23) Signature_________________________ 1. (5 pts) Define Hammond's postulate in a concise fashion. 2. (1-4 pts each) Consider the following statements that refers to S N 1, S N 2, E1, E2 or a radical chain reaction mechanism. To which mechanism(s), if any, does each statement apply? A. Involves a carbocation intermediate Mechanisms B. Rearrangements can occur during these reactions C. When reaction occurs at a chiral center on a pure sample of a single enantiomer, a single enantiomer product with inversion of configuration is created. E. Involves an antiperiplanar transition state geometry F. The order of reactivity is 3 alkyl halides > 2 alkyl halides G. The order of reactivity is methyl halides > 1 alkyl halides > 2 alkylhalides and not 3 alkyl halides H. For alkane starting materials, the order of reactivity is 3 hydrogens > 2 hydrogens > 1 hydrogens I. The reaction that will occur when KOtBu is used J. The reaction that will occur when Br 2 and light are used K. The reaction that will occur when HBr and peroxides with light are used L. The reaction that will occur when NBS and light are used M. Is promoted by polar protic solvents D. When reaction occurs at a chiral center on a pure sample of a single enantiomer, a mixture of product enantiomers will be created Signature_________________________ Pg 2 _____________(12) 3. (3 pts) For the following series of compounds, circle the one with the highest boiling point....
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Ex3Fl05Ques - Chemistry 310M/318M Dr. Brent Iverson 3rd...

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