CHM2210EXIVV3F11

CHM2210EXIVV3F11 - Last Name, First Name_ Panther ID _...

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Last Name, First Name____________________________ Panther ID _________________ FLORIDA INTERNATIONAL UNIVERSITY Department of Chemistry & Biochemistry CHM 2210-U01 – ORGANIC CHEMISTRY I Fall 2011 EXAM IV Dr. Keller/Dr. Landrum Version 3 Instructions: Choose the BEST answer to each multiple choice question. Look over the Written Questions early during your test to be sure you allocate your time appropriately.
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Page | 2 A) Br B) Br H D) NH 2 C) Br NaNH 2 Excess Br Work-up 4 Cl CH 3 D C E) Na CH 3 D H Br CH 3 D Br H H D CH 3 Br D CH 3 H A) B) C) D) E) Both B and D would be produced 1. How many moles of H 2 will react with the ene- yne shown below A. 5 - B. 6 C. 8 D. 13 E. 16 2. Which carbocation would form during the addition of HBr to 2-methyl-2-butene? 3. The reaction below produces which product? 4. Dehydration of alcohols involves A. Formation of a protonated alcohol B. Loss of the leaving group H 2 O C. Formation of a carbocation D. Is often accompanied by rearrangement E. All of the above 5. Which product(s) is/are produced by hydrobromination of 6. Hydration of alkenes in dilute H 2 SO 4 involves A. protonation of the alkene in the 1 st step B. addition of H 2 O in the 1 st step C. Nucleophilic attack of H 2 O on the alkene D. None of the above H 2 C C H 2 CH 3 3 H 3 C C H 2 CH 3 2 H 3 C C 2 CH 3 3 H 3 C C H CH 3 CH 3 A) C) B) D)
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Page | 3 OH OH OH OH A) B) B) D) E) Br NaOCH 3 CH 3 B) C) D) E) All are Equally stable A) B) C) D) 7. Which alkene would be the most stable? 8. Zaitsev’s rule A. predicts the stability of the alkene formed B. predicts the product distribution for addition reactions of alkenes C. predicts the major product of Elimination reactions D. explains the regioselectivity of halohydrin formation E. NONE of the above 9. Which is/are the major product(s) expected from the following reaction? E) both C and D are expected 10. The stabilities of alkenes A. can be determined from the heats of hydrogenation B. Decreases with alkyl substitution C. Determines the E2 product formed according to Zaitsev’s rule D. Is the result of steric factors only E. A B & C 11. Which alcohol would be most easily dehydrated?
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This note was uploaded on 12/22/2011 for the course CHEMISTRY 2210 taught by Professor Keller during the Spring '11 term at FIU.

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CHM2210EXIVV3F11 - Last Name, First Name_ Panther ID _...

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