CHE128C MT2 S09 Key Chen

CHE128C MT2 S09 Key Chen - Page 1 of 5 CHE128C, Spring 2007...

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Page 1 of 5 CHE128C, Spring 2007 May 18, 2007 Name___________________________________________ Midterm Exam 2 Last, First Middle This exam contains 5 pages and 4 problems. When you are told to start, check to see that all the pages are there. If not, ask for help now. No adjustments will be made later . Pages 1 2 3 4 5 Total 15 21 24 20 20 100 Points 1. (15 pts total) Multiple choices. Circle the correct answer (3 pts each). a) Which one of the following is the weakest base ? NH 2 CH 2 NH 2 N H NH 2 b) Which one of the following is the strongest base ? NH 2 NO 2 NH 2 NO 2 NO 2 NH 2 O 2 N NH 2 CH 3 c) D-Galactose and L-Galactose are Anomers Conformers Enantiomers Epimers d) α -Glucopyranose and β -Glucopyranose are Anomers Conformers Enantiomers Epimers e) Which of the following is a D-ketohexose? H C O C H C HO C HO C H CH 2 OH OH OH H H OH CH 2 OH C C HO C H C HO CH 2 OH O H OH H C C H O C H OH H OH C O C H C OH CH 2 OH H OH H C HO H C H OH C HO H CH 2 OH
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Page 2 of 5 2. (45 pts) Write the structure of the major organic product(s) of each reaction shown below. If you
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CHE128C MT2 S09 Key Chen - Page 1 of 5 CHE128C, Spring 2007...

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