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12. Select the atoms that exhibit a partial positive charge in the following molecule: a. 1 only b. 1 and 2 only c. 1, 2, and 4 d. 1, 2, 3, and 4 4

12. Select the atoms that exhibit a partial positive charge in the following molecule: a. 1 only b. 1 and 2 only c. 1, 2, and 4 d. 1, 2, 3, and 4 4

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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12. Select the atoms that exhibit a partial positive charge in the following molecule: 1 only b. 1 and 2 only с. 1, 2, and 4 d. 1, 2, 3, and 4 а. 13. Select the statement that is most true regarding kinetic and thermodynamic enolates. a. kinetic enolates are formed with a higher energy of activation under irreversible conditions relative to thermodynamic enolates. b. kinetic enolates are formed with a higher energy of activation under reversible conditions relative to thermodynamic enolates. c. kinetic enolates are formed with a lower energy of activation under reversible conditions relative to thermodynamic enolates. d. kinetic enolates are formed with a lower energy of activation under irreversible conditions relative to thermodynamic enolates. 14. Select the most appropriate reagent to afford the following organic transformation: а. BuLi b. Bu2CuLi с. BиMgBr d. BuBr 15. An unknown compound which exhibits no absorbances above 3100 cm-1 exhibits a molecular ion in the El-MS of 133 m/z. Identify the unknown compound. A D 4- 2.
Transcribed Image Text:12. Select the atoms that exhibit a partial positive charge in the following molecule: 1 only b. 1 and 2 only с. 1, 2, and 4 d. 1, 2, 3, and 4 а. 13. Select the statement that is most true regarding kinetic and thermodynamic enolates. a. kinetic enolates are formed with a higher energy of activation under irreversible conditions relative to thermodynamic enolates. b. kinetic enolates are formed with a higher energy of activation under reversible conditions relative to thermodynamic enolates. c. kinetic enolates are formed with a lower energy of activation under reversible conditions relative to thermodynamic enolates. d. kinetic enolates are formed with a lower energy of activation under irreversible conditions relative to thermodynamic enolates. 14. Select the most appropriate reagent to afford the following organic transformation: а. BuLi b. Bu2CuLi с. BиMgBr d. BuBr 15. An unknown compound which exhibits no absorbances above 3100 cm-1 exhibits a molecular ion in the El-MS of 133 m/z. Identify the unknown compound. A D 4- 2.
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