ochem 3rd test 2007

ochem 3rd test 2007 - CHEMISTRY 314-01 MIDTERM # 3 April...

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CHEMISTRY 314-01 MIDTERM # 3 April 12, 2007 Name ..................................................................................... The total number of points in this midterm is 100. The total exam time is 120 min (2 h). Good luck! 1. (5 pts) Mark as true ( T ) or false ( F ) the following statements. Do not explain! Carboxylic acids are not Brønsted acids; Base-promoted hydrolysis of esters is irreversible; Esters can be formed from carboxylic acids and alcohols in both acid-catalyzed and base-promoted reactions; Lactones are cyclic amides; β -ketoesters are more acidic than carboxylic acids; 2. Circle ALL that apply: A. (3 pts) The following reactions are used to generate carbon – carbon bonds: a. Aldol condensation; b. Claisen condensation; c. Ester saponification; d. Lactam formation; B. (3 pts) Circle the reagents that CANNOT be used to convert a carboxylic acid to an acid chloride: a. Thionyl chloride; b. Alkyl chloride; c. Sodium chloride; d. Phosphorus pentachloride; C. (3 pts) The following compounds CANNOT undergo aldol self-condensation: a. Acetone; b. Acetaldehyde; c. Formaldehyde; d. Benzaldehyde; D.
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ochem 3rd test 2007 - CHEMISTRY 314-01 MIDTERM # 3 April...

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