CHEM 202 Practice Exam 4

CHEM 202 Practice Exam 4 - -----CHEM202 Practice Exam 4...

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Unformatted text preview: -----CHEM202 Practice Exam 4 Fall 2010 NAME: Dr. Thomas Berg Total Points == 125 Questionsl-25 : 5 points each 1. Which if the major product from the following reaction? 0 II 1. Br2, PBr3 -4 ? CH3CH2COH 2. H3O+ 0 II a) BrCH2CH2COH 0 [: b) CH3CH2CBr 0 I[ c) CH3CHBrCOH 0 II d) CH3CH2COBr e) CH3CH2CBr(OH)2 2. Which of the following reactions and classifications (oxidation, reduction, or neither) are correct? Reaction Classification oxidation reduction neither a) I only b) II only c) III only d) I and II only e) I, II, and III 3. Rank the following compounds in order of increasing acidity oftheir a.-hydrogen atoms; least acidic to most acidic: a) I < III < IV < II b) I < IV < II < III c) II<IV<I<I11 d) III < I < IV < II e) None of these is correct. 4. How would you accomplish the following conversion? b) OH/NaCN c) 1. Br2 I H+ ,H20 2. NaCN d) 1. HBr 2. NaCN e) 1. LiACH4 2. HCN 3. KMn04 5. Treatment of 1,2-diethylcyclopentene with OS04 produces ___ a) a racemic mixture of osmates. b) a meso osmate. c) a racemic mixture oftrans vicinal diols. d) a meso trans vicinal diol. e) an optically active trans vicinal diol. 6. What is the major product of the following reaction? 0 )10 ?C) OH H2O 0 DH DH1. IV. cocCl DH II. 0 OH DH V. ct:lo ill. ~ <XI0 a) I b) II c) III d) IV e) V 7. Which of the following reagents effectively cleaves a carbon-carbon double bond? o Ii a) RCOOH c) cold KMn04 d) hotKMn04 e) Two of the above are correct. 8. What is the major product obtained from the following reaction? o II OH-Iheat ? CH3'CH2-C-CH3 ----:I,....... ~ /CH3 b) H3C-C-CH2-CH=C"", CH2CH3 ~ /CHs c) CHsCH2-C-CH=C"", CH2CH3 OH I d) HsC-CH2-C-CHS I OH e) None of these is correct....
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This note was uploaded on 10/06/2011 for the course CHEM 202 taught by Professor Thomasberg during the Fall '10 term at FIU.

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CHEM 202 Practice Exam 4 - -----CHEM202 Practice Exam 4...

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