2425e2 - H Organic Chemistry II 2425...

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Houston Community College System Organic Chemistry II 2425 Sample  EXAM # 2A (16,17, and 18) Cholesterol- is a lipid found in the cell membranes of all animal tissues, and it is transported in the blood plasma of all animals . 1
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CHEM 2425 Sample EXAM # 2A ( Chapters 16-18) Directions - Please write your correct answer next to each question number in space provided . _____1. Which of the following would you expect to have the highest boiling point? A. isopropyl alcohol B. t-butyl alcohol C. diethyl ether D. n-butanol _____2. Which of the following would be the highly miscible with (=most soluble in) water? _____3. What reagents are typically required to accomplish allylic bromination of an alkene? _____4. Which of the following are only meta directing strongly deactivating group(s)? I. –CH 3 II. –CHO III. –OH IV. – NO 2 _____5. What is the product of refluxing methylethyl ether with HI in acidic solution? A. ethanol and methyl iodide B. methanol and ethyl iodide C. ethanol and methyl alcohol D. iodoethane and methanol _____ 6. Which of the following is the electrophile that attacks the aromatic ring during nitration? _____7. Which of the following functional group represents the benzyl group? _____8. Which of the following is (bromomethyl)ethyl ether? _____9. 2-Methoxypentane is classified as ______________________ . 2
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A. a symmetrical ether B. a secondary alcohol C. an epoxide D. an ether _____10. The following reaction classifies as __________________ . R-CHO R- CH 2 OH _____ 11. What is the incorrect name for the following compound ? O CH 3 CH CH- CH 3
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