HE1Key - rnitrats kCY CHEMISTRY152 l,2OO7 Session Summer...

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rnitrats kCY CHEMISTRY 152 Summer Session l,2OO7 May 29,2007 HOUR EXAMINATION I auestion Points Sc I II III IV V VI VII 30 20 45 l0 t0 20 l5 TOTAL r50 ExamBegins Here I. (30points). Intheanswerareabelow,darkenthespaceofthemostappropriateresponsetoeachof following multiple choice questions. ANSWERS TO OUESTION I 4 5. 6. l. 2. 3. a , b c d I e , a b t c , d e ,
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\<e. Y Initials l. Which is the correct order of decreasing acidity of the following compounds? Hzo n, ho* ts A @n>r>c>D>B cH3cH3 5.' B H H H 4aH D fl-----fl 2g E NHs 3s c 2. b. A>E>D>B>C c. E>A>C>D>B d. A>C>E>D>B e. E>D>B>A>C What organic product results when acetylene (ethyne) is treated with 6N aqueous sodium hydroxide? a. sodium acetylide salt b. an enol c. an alcohol d. an aldehyde \ @ not much reaction - most (>99Vo) of the acetylene remains unchanged Which of the following compounds is aromatic? 3. 4. f^1'\ e-Tz\a\ \)=/ v&\2 r'\t-\ Z\r\ \)'') \-(2 a.A b.B c.C @D e.E Whichof the following undergoes solvolysis is water most rapidly? Br I \J . \ il) \-/ I Br B r-r'' \? A E D c A B C D E
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Initials 5. Which of the following reacts most slowly during nitration? r,\7ocus fi7NHz .,of t w\2\) ri\rcH' /-\rct \2 \) AB CDE a.A b.B c.C d.D @E 6. Which of the following statements
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