exam_answers_CHEM335A Exam 2_KEY

exam_answers_CHEM335A Exam 2_KEY - Multiple Choice and Fill...

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Page 1 Multiple Choice and Fill in the Blank ( 10 points each ) 1. An IUPAC name for is: A) 5-Methyl-4-(1-methylpropyl)hexane B) 2-Methyl-3-(1-methylpropyl)hexane C) 2-Methyl-3-(2-methylpropyl)hexane D) 3-Methyl-4-(1-methylethyl)heptane E) 5-Methyl-4-(1-methylethyl)heptane 2. The least stable conformation of butane is: A) I B) II C) III D) IV E) V 3. Which isomer would have the largest heat of combustion? A) Propylcyclopropane B) Ethylcyclobutane C) Methylcyclopentane D) Cyclohexane E) Since they are all isomers, all would have the same heat of combustion.
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Page 2 4. __Stereoisomers ___ have the same molecular formula and connectivity but different arrangements of atoms in three-dimensional space. 5. The molecules shown are: A) constitutional isomers. B) enantiomers. C) diastereomers. D) identical. E) None of these 6. Which of the following is(are) meso compound(s)? A) I B) II C) III D) Both II and III E) Both I and III 7. Which one of the following can exist in optically active forms?
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exam_answers_CHEM335A Exam 2_KEY - Multiple Choice and Fill...

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