Exam 2 - CHEM 241 Synthesis & Reactivity I Exam...

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Unformatted text preview: CHEM 241 Synthesis & Reactivity I Exam #2 March 7, 2008 Name:________ KEY _________ Lab Section: Tu W T F This exam ends at 10:25 am as indicated by the clock in Althouse 110. In the space provided, give the best answer (3 points each) __ B __ 1. What is the relationship of the following molecules? CH 3 CH 2 OH HO H OH H CH 3 CH 2 OH H HO H OH a) constitutional isomers b) enantiomers c) diastereomers d) identical molecules __ A __ 2. Which of the following is the best nucleophile in the following series? a) NH 3 c) Br 2 b) HBr d) BH 3 __ C __ 3. What feature of an energy diagram reveals whether a reaction is endothermic or exothermic? a) the height of the transition state b) the number of transition states c) the relative energies of reactants and products d) the relative energies of the intermediates __ D __ 4. The correct name of the following structure is: CH 3 CH 3 H Cl H Br a) (2R, 3R)-2-bromo-3-chlorobutane b) (2S, 3R)-2-bromo-3-chlorobutane c) (2S, 3S)-2-bromo-3-chlorobutane d) (2R, 3S)-2-bromo-3-chlorobutane __ B __ 5. Shikimic acid is a naturally-occurring compound that is used to make Tamiflu. How many stereoisomers of shikimic acid are possible?...
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This test prep was uploaded on 04/17/2008 for the course CHEM 241 taught by Professor Crouch during the Spring '08 term at Dickinson.

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Exam 2 - CHEM 241 Synthesis & Reactivity I Exam...

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