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Exam-2-Spring09-key

Exam-2-Spring09-key - CHE 202A/204A Spring 2009 Midterm...

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CHE 202A/204A Spring 2009 Midterm Exam-2-Key March 04, 2009 Name: Person #: Section (202A or 204A): Signature: Problem Maximum points Actual points 1. 50 2. 10 3. 20 4. 10 5. 20 6. 40 7. (extra credit) 10 Total maximum 160 Your total
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1. Circle the correct answer: (50 pts) (1) Benzyl alcohol can undergo: a. S N 1 reaction more easily than S N 2 reaction. b. S N 2 reaction more easily than S N 1 reaction. c. either S N 1 or S N 2 reaction depending on the reaction condition. d. neither S N 1 nor S N 2 reaction under any conditions. (2) How many transition state(s) is (are) involved in a Diels-Alder reaction? a. 0 b. 1 c. 2 d. 3 e. 4 (3) A conjugated diene is (4) In the electrophilic addition of Br 2 a conjugated diene, 1,2- and 1,4-addition often compete with each other because of:
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