Chemistry 236_Fall 2010_Exam I_September 10

Chemistry 236_Fall 2010_Exam I_September 10 - 1) BH 3 2) H...

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First Three Letters of Last Name NAME ________________________ Network ID ______________________ C HEMISTRY 236 F ALL 2010 E XAM I S EPTEMBER 10, 2010 Note: The last page of this exam is a periodic table. 1 ( 1 2 ) 2 ( 1
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CHEM 236 – Fall 2010 Exam I 2 1. [12 pts] Draw structures for (a) and (b). Provide correct names for (c) and (d). (a) Draw any correct structure for C 3 H 6 O. (b) Draw the structure of Z , Z -2,4 hexadiene (c) (d)
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CHEM 236 – Fall 2010 Exam I 3 2. [12 pts] Draw curved arrows and resonance contributors for: (a) (b)
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CHEM 236 – Fall 2010 Exam I 4 3. [6 pts] Define the following terms and give an example. (a) an electrophile (b) stereoisomers
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CHEM 236 – Fall 2010 Exam I 5 4. [30 pts] Fill in each blank with a correct structure. (a) (b) 1) O 3 2) H 2 O 2 HOC(CH 2 ) 6 COH O O (c) (d) CH 3 CHCH 3 CH 2 CH 2 OH HCl
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Unformatted text preview: 1) BH 3 2) H 2 O 2 CH 3 CHCH 3 CHClCH 3 (e) HBr, peroxide CHEM 236 Fall 2010 Exam I 6 5. [30 pts] DO FIVE. Draw curved arrow mechanisms for five of the following: (a) The reaction of a hydrogen atom and ethylene to give the ethyl radical. (b) The reaction of sodium hydroxide with bromine to give sodium bromide and hypobromus acid (HOBr). (c) The reaction of a proton with 2-methyl-2-octene to give the more stable of the two possible carbocations. CHEM 236 Fall 2010 Exam I 7 (d) (e) (f) CHEM 236 Fall 2010 Exam I 8 6. [10 pts] Provide the products and a curved arrow mechanism for the reaction of 1,3-hexadiene with HCl to give isomeric products. Draw the contributing structures for any resonance hybrid you propose. 1 eq. CHEM 236 Fall 2010 Exam I 9...
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Chemistry 236_Fall 2010_Exam I_September 10 - 1) BH 3 2) H...

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