231 2006 Final Examination

231 2006 Final Examination - Final Examination CHM 231...

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Final Examination CHM 231 Spring, 2006 Dr. Gust Time limit: 100 minutes Total points = 150 Answer on Pearson machine-grading sheets by marking response A, B, C, D or E. There is only one correct answer to each question. BE SURE TO ENTER YOUR LAST AND FIRST NAMES, AND YOUR 10-DIGIT ASU ID NUMBER ON THE FORM. DO NOT SUPPLY YOUR BIRTH DATE. THE QUESTIONS BELOW ARE EACH WORTH 2 POINTS 1. Which is the electronic configuration that describes the carbon atom? A 1s 2 , 2s 2 B 1s 2 , 2s 2 , 2p 6 , 3s 2 C 1s 2 , 2s 2 , 2p 2 D 1s 2 , 2s 2 , 2p 6 2. How many primary carbons are there in the following molecule? CH 2 CH 3 C CH 3 CH 2 CH 3 H 3 C A 1 B 2 C 4 3. What is the organic product of the following reaction? OH SOCl 2 + pyridine A B C D S O Cl Cl SH 1
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4. Which compounds are acetals? A I, II, III B IV, V, VI C III, IV, VI D II, IV, V 5. Which characteristics are correct for a peptide bond in a polypeptide? I) planar II) cis III) trans IV) tetrahedral A I, II B I, III C II, IV D III, IV 6. Only cyclic hydrocarbons can be aromatic compounds. A True B False 2 O CH 3 O OH O O CH 3 CH 3 O O O O CH 3 CH 3 O OCH 3 I II III IV V VI
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7. Which statement about constitutional isomers is not true? A Constitutional isomers have the same molecular formula. B Constitutional isomers have the same molecular weight. C Constitutional isomers have different physical properties. D Constitutional isomers have the same connectivity of atoms. 8. Which is the major product from the reaction of cyclopentene with Br 2 ? 9. Which of the following are constitutional isomers of trans-1,2-dimethylcyclopentane? I II III IV V A I, III, IV B II, IV, V C II, III, V D III, IV, V 10. Which conformer of pentane is least stable? 3
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11. Which statements about mRNA codons are correct? I) Each amino acid is coded by only one codon. II) A given codon codes for several different amino acids. III) UAA, UAG, UGA are stop codons. IV) Several amino acids are coded by more than one codon. A I, II B III, IV C I, III D II, IV 12. Which sugars and classifications are correctly matched? A III, V B II, III, IV C I, III D III, IV, V 13. What is the correct name for this structure? (Vertical lines with no letters on them signify hydrogen.) A 5’-dAMP B 5’-TMP C 3’-AMP D 3’-dTMP 4 CH 2 OH OH H OH H H OH CHO CH 2 OH HO H OH H H HO H OH CHO CH 2 OH H HO OH H CHO CH 2 OH HO H OH H H HO O CH 2 OH CH 2 OH OH H OH H O CH 2 OH aldohexose I aldotetrose II aldohexose III ketotetrose IV ketopentose V O N HN HOH 2 C O O CH 3 O P O O O
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14. Which are secondary alcohols? A
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This note was uploaded on 04/27/2009 for the course CHM 231 taught by Professor Gust during the Spring '09 term at University of Arizona- Tucson.

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231 2006 Final Examination - Final Examination CHM 231...

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