Exam 2-2006 - Hour Exam Two: Chapters 3 & 5 I. Test Form D...

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Test Form D Hour Exam Two: ORGANIC CHEMISTRY I Name: _________________ Chapters 3 & 5 FALL - 2004 October 19, 2005 I. Multiple Choice: (90 Points) 1. Which of the acids below would have the weakest conjugate base? A) CH 3 CH 2 OH pK a = 18 D) Cl 2 CHCO 2 H pK a = 1.29 B) CH 3 CO 2 H pK a = 4.75 E) Cl 3 CCO 2 H pK a = 0.66 C) ClCH 2 CO 2 H pK a = 2.81 2. cis-1,3-Dibromocyclohexane is: A) optically active. D) a constitutional isomer. B) one of a pair of enantiomers. E) a conformer. C) optically inactive. 3. For the reaction: which pair of substances both are bases? A ) H 2 O and CN - D) HCN and CN - B) H 3 O + and H 2 O E) H 3 O + and CN - C) HCN and H 3 O + 4. Cis -trans -1,2-dichlorocyclohexane are: A) diastereomers. D) constitutional isomers. B) enantiomers. E) More than one of these C) conformers 5. Which statement(s) are TRUE? A) Inductive effects are felt through the σ -bonds. B) Resonance effects are felt through the π -bonds. C) As electronegativity increases within a period, acidity increases. D) As the size of the atom increases in a column, acidity increases. E) All of the Above. Page 1
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6. According to the Lewis definition, an acid is a(n): A) Proton donor. D) Hydrogen ion donor. B) Electron pair donor.
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This note was uploaded on 04/17/2008 for the course CHEM 3411 taught by Professor Pohlman during the Spring '08 term at Saint Mary's University Texas.

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Exam 2-2006 - Hour Exam Two: Chapters 3 & 5 I. Test Form D...

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