quiz3-2002-2003

quiz3-2002-2003 - propanol. The first step is slower than...

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V3.1 1 Quiz #3, CHEM 111, Fall Semester, 2002/2003 Student Name: Student ID #: Section: Note: You are required to complete all questions independently. Reference materials and textbook are prohibited. Total marks for this quiz are 50 points. Question 1: Name FIVE each of nucleophiles and electrophiles from the following reagents. Underline the atom which acts as nucleophile or electrophile. For example: H 3 N is a nucleophile (10 points) (CH 3 ) 2 CO N H 3 CCH 2 O HOH Me 2 S H 3 CCH 2 Br BBr 3 HF Answer: Nucleophiles: Electrophiles: Question 2: Calculate the degree of unsaturation in the formula of C 6 H 10 ClNO and draw FOUR possible structures possessing different carbon skeleton. (10 points) Answer: Question 3: Use the correct arrows to indicate the movement of electrons and predict the major product in the following reaction (10 points) Answer: + HC l
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V3.1 2 Question 4: 2-Chloro-2-methylpropane reacts with water in three steps to yield 2-methyl-2-
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Unformatted text preview: propanol. The first step is slower than the second, which in turn is much slower than the third. The reaction takes place slowly at room temperature, and the equilibrium constant is near 1. Draw a reaction energy diagram, labeling all points of interest and making sure that the relative energy levels on the diagram are consistent with the information given. (15 points) H 3 C C CH 3 Cl CH 3 H 3 C C CH 3 CH 3 H 3 C C CH 3 O CH 3 H H H 2 O H 3 C C CH 3 O CH 3 H + H 3 O + Cl H 2 O Answer (complete the energy diagram in the box provided below): Reaction progress Energy Question 5: Draw the line-bond (Kekulé) structures of the following molecules. (5 points) ( A ) 4-tert-Butyl-2-methylheptane ( B ) trans-2,3,3-Trimethyl-1,4-octadiene Answer: ( A ) ( B )...
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This note was uploaded on 02/27/2010 for the course CHEM CHEM111 taught by Professor Dai during the Fall '06 term at HKUST.

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quiz3-2002-2003 - propanol. The first step is slower than...

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