05_mid_266_m2_02_ans

05_mid_266_m2_02_ans - F05 Sec 01 1 Card 001 Order the...

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F05 Sec 01 Card # 001 Chem 266 1. Order the following bases from strongest to weakest ? 1) CH 2 =CH¯ 2) CH 3 3) (CH 3 ) 3 CO¯ 4) CH 3 NH¯ A) 4 > 2 > 1 > 3 B) 1 > 4 > 2 > 3 C) 3 > 1 > 2 > 4 D) 1 > 4 > 3 > 2 2. List the following acids from strongest to weakest ? A) 4 > 2 > 1 > 3 B) 2 > 1 > 3 > 4 C) 1 > 3 > 2 > 4 D) 2 > 1 > 4 > 3 3. Order the following alkyl halides in order of reactivity towards an S N 2 reaction? ( most reactive to least reactive ) 1) CH 3 CH 2 CH 2 Cl 2) CH 3 CH 2 CH 2 Br 3) (CH 3 ) 3 CCH 2 Cl A) 2 > 1 > 3 B) 1 > 3 > 2 C) 2 > 3> 1 D) 3 > 1 > 2 4. The molecule given below has three halogens of different kinds. Order the halogens towards reactivity in an S N 1 reaction. ( most reactive to least reactive ) A) 2 > 1 > 3 B) 1 > 2 > 3 C) 2 > 3> 1 D) 3 > 1 > 2 5 Which of the following orbital pictures is the best representation of the LUMO for the S N 2 reaction of OH - attacking on CH 3 I? A ) B ) C ) D ) 1) 2) 3) 4) OH CO 2 H CH 3 CH 2 OH CH 3 CH 2 OCH 2 CH 3 1) Br Br 2) 3) Br 1
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F05 Sec 01 Card # 001 Chem 266 6. Which of the following free energy diagrams represents an overall endothermic reaction? A) 1 and 2 B) 2 and 3 C) 1 and 4 D) 3 and 4 7. What is the major product formed in the following reaction? 8. In a nucleophilic reaction, a temperature effect was observed and the energy distribution curve was plotted at three different temperatures: Which of the statements is true?
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This note was uploaded on 09/13/2011 for the course CHEM 233 taught by Professor Daub during the Spring '09 term at Waterloo.

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05_mid_266_m2_02_ans - F05 Sec 01 1 Card 001 Order the...

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