quiz2-2002-2003

quiz2-2002-2003 - v2.1 Quiz #2, CHEM 111, Fall Semester,...

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v2.1 1 Quiz #2, CHEM 111, Fall Semester, 2002/2003 Student Name: Student ID #: Section: Note: You are required to complete all questions independently. Reference materials and textbook are prohibited. Total marks for this quiz are 50 points. Question 1: Draw two different chair conformations of cis -1-bromo-4- tert -butylcyclohexane shown below. Indicate which chair conformation is much more stable (10 points) Br C CH 3 CH 3 H 3 C Answer: Question 2: Draw the anti , gauche , and least stable eclipsed conformations of 1-iodopropane. (15 points) observer C 1 C 2 I Answer: (Look through C 1 –C 2 bond. Use the three templates below for your answer.) CH 3 CH 3 CH 3 anti gauche least stable eclipsed Question 3: For the chair conformations A D of 1,2-dimethylcyclohexanes shown below, indicate which chair conformation is the most stable one. Which pair of conformations is the cis
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This note was uploaded on 02/27/2010 for the course CHEM CHEM111 taught by Professor Dai during the Fall '06 term at HKUST.

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quiz2-2002-2003 - v2.1 Quiz #2, CHEM 111, Fall Semester,...

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