exam1Summer08 - Summer 2008 Chemistry 51 Organic 1 Brooklyn...

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Unformatted text preview: Summer 2008, Chemistry 51, Organic 1, Brooklyn College, CUNY All answers must appear on the Answer Sheet. Chemistry 51 Exam 1, Summer 2008 =============================================== This is a closed book exam. The exam lasts 75 minutes. All answers must appear on the answer sheet. Only the answer sheet will be collected . Put your name on the answer sheet now. When the exam is over you must hand-in your answer sheet promptly or a penalty may be assessed. The point value of each question is indicated on the answer sheet. You may not leave the room during the exam . =============================================================== 1. Name the following compound. Use the IUPAC system and include configurational (R,S) designations. CHO CHO O OH 2. For the positive ion below draw two additional resonance structures. Of the three resonance structures which is the most stable ? OCH 3 3. Which of the following compounds may be optically active? Answer by letter. A) meso 2,3 dibromobutane B) FHC C C CHF C) FHC C CHF Summer 2008, Chemistry 51, Organic 1, Brooklyn College, CUNY All answers must appear on the Answer Sheet. 4 There are two stereoisomers of 1,6 difluoro bicyclo [4.4.0] decane. Complete either diagram A or B below to represent the stereoisomer having a molecular dipole moment of zero....
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exam1Summer08 - Summer 2008 Chemistry 51 Organic 1 Brooklyn...

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