ACS Review 11 Arenes and Aromaticity

ACS Review 11 Arenes and Aromaticity - ACS Review Arenes...

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ACS Review Arenes and Aromaticity 1. What is the correct IUPAC name of the following compound? A. 1,4-dibromo-3-nitrobenzene B. 1,4-dibromo-2-nitrobenzene C. 2-nitro-1,4-dibromobenzene D. 1-nitro-2,5-dibromobenzene 2. How many isomeric tribromobenzenes are possible? A. one B. two C. three D. four 3. Which of the following is not true concerning the structure of benzene? A. All C-C-C bond angles are exactly 120 o . B. The carbon-carbon bonds rapidly alternate between single and double bonds. C. The six hydrogens are equivalent. D. The π bonds are completely conjugated. 4. What is the IUPAC name of the following compound? A. 4,6-dichloro-2-benzoic acid B. 2,4-dichlorobenzoic acid C. 3,5-dichlorobenzoic acid D. meta -dichlorobenzoic acid 5. The total number of resonance forms of the cyclopentadienide anion, C 5 H 5 ¯ , is: A. two B. three C. four D. five 6. Which of the following ions are aromatic species?
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A. I and III B. II and III C. II and IV D. III and IV 7. Identify the aromatic compounds. A. I and II B. III and IV C. I, II, and IV D. all of them 8. How many isomeric bromoanthracenes are there? A. none, only one structure B. two C. three D. four 9. Which of the following reacts at the fastest rate when heated with N-bromosuccinimide (NBS) and benzoyl peroxide in carbon tetrachloride at 80 o C? A. toluene B. ethylbenzene C. isopropylbenzene (cumene) D. tert -butylbenzene 10. The Birch reduction of benzene with sodium in NH 3 /CH 3 OH goes by a four-step mechanism. The first step is the: A. transfer of a proton from CH 3 OH to benzene. B. transfer of an electron from Na to benzene. C. transfer of an electron from benzene to NH 3 .
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This note was uploaded on 12/17/2010 for the course CHEM 101 taught by Professor Silva during the Spring '08 term at Binghamton.

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ACS Review 11 Arenes and Aromaticity - ACS Review Arenes...

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