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CH310M-Exam2_KEY - CH 310/318M EXAM 2 Williams Fall 2010...

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CH 310/318M - EXAM 2 Williams – Fall 2010 EID:___________________ 1 Name (print): ____________________________________________________________ Signature: _______________________________________________________________ Do Section I (Scantron) in #2 Pencil! Do Section II in blue or black PEN! Please write the first three letters of your last name in the boxes
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CH 310/318M - EXAM 2 Williams – Fall 2010 EID:___________________ 2 Question Value Score 1 11 2 24 3 10 4 9 5 18 6 18 7 27 8 8 Section II 125 Section I 125 Raw Total 250
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CH 310/318M - EXAM 2 Williams – Fall 2010 EID:___________________ 3 PART 1 MULTIPLE CHOICE (5 PTS EA: 125 PTS in this section) 1) Which of the following reaction conditions provides a good test for the presence of an alkene, due to an obvious color change in the reaction? (we discussed this in class!) a. Hg(OAc) 2 , H2O b. Br 2 c. 1) BH 3 , 2) H 2 O 2 , NaOH d. H 2 SO 4 , H 2 O ANS: b 2) What is the hybridization of carbon atoms labeled i iii in the following structure? H 2 C C CH 2 i ii iii 3) Which of the following anions is the strongest base?
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CH 310/318M - EXAM 2 Williams – Fall 2010 EID:___________________ 4 d. Cl - ANS: C 4) Which of the following is present in the highest concentration upon dissolution of acetic acid in water? 5) What is the index of hydrogen deficiency of a compound with a molecular formula of C 6 H 7 Cl? a. 0 b. 1 c. 2 d. 3 ANS: d
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CH 310/318M - EXAM 2 Williams – Fall 2010 EID:___________________ 5 6) What is the index of hydrogen deficiency of a compound with a molecular formula of C 6 H 7 Cl? 7) Which of the following concepts explains Markovnikov’s rule as applied to the addition of HBr to propene? 8) Which of the following terms describes the role of ethene in the acid-base reaction shown? H 2 C CH 2 H Br
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CH 310/318M - EXAM 2 Williams – Fall 2010 EID:___________________ 6 e. electrophile ANS: b
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