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EX12BF08_2_practice - ORGANIC CHEMISTRY CHEM 12B(L1/L1L...

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ORGANIC CHEMISTRY FALL 2008, LANEY COLLEGE CHEM 12B (L1/L1L, 41830/41832) INSTRUCTOR: S. CORLETT Exam 2 Practice Page 1 of 4 Name __________________________________ Date ________________ 1. Circle the molecules or ions that are aromatic. (8 points) N H N H 2. One of the two compounds below reacts with aluminum chloride and the other one doesn’t. Show the product(s) from the one that does and explain why the other one doesn’t. (10 points) Cl Cl or AlCl 3 AlCl 4 + 3. Unlike benzene, 1,3,5,7-cyclooctatetraene has two different carbon-carbon bond lengths, 1.33 Å and 1.46 Å. Explain why. (6 points) 4. Show using the polygon rule (Frost circles) whether the cycloheptatrienyl carbanion is aromatic or anti- aromatic. (5 points)
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ORGANIC CHEMISTRY FALL 2008, LANEY COLLEGE CHEM 12B (L1/L1L, 41830/41832) INSTRUCTOR: S. CORLETT Exam 2 Practice Page 2 of 4 5. Draw the structure of the following compounds. (9 points) a. 2-aminofuran b. 3,5-dinitrobenzoic acid c. 2,4-dichloroaniline 6. Provide the IUPAC name for the following compounds. (9 points)
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