practice-1C - Chem 210 Practice Exam 1C Organic Chemistry:...

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Chem 210 Practice Exam 1C 1 Organic Chemistry: Chem 210 Practice Exam 1C There are 33 questions on this exam. Check that you have done all of the problems and filled in the first 33 bubbles on the scantron. Most questions are worth 4 points; there are several two-point questions clearly labeled in the text. The maximum score on this exam is 100 points. Instructions Answer sheet 1) On the scantron, you need to clearly fill: • your name and your student number , section number : (it is 001) test form (white = test form A; yellow = test form B). 2) Use a #2 pencil Exam policy 1) No electronic devices of any kind, such as calculators, cell phones, or even more advanced digital watches, are allowed. Possession of such devices during the exam, whether in use or not, is grounds for awarding a zero on the exam. 2) Molecular models are allowed (no instruction pages are permitted, however). 3) There are some blank pages at the end of the test that can be used as scratch paper. 4) Relevant tables, including the periodic table, are attached at the end of this exam. 5) Numerical values given in one question apply only to that question, and should not be used in other questions, unless there is a specific instruction to do so. If necessary, the values from the provided tables should be used, even if they differ from values that you may remember from different sources. 6) The exam results are based strictly on scantron’s marks. No extraneous information is used to adjust the scores. Mark your choices with extra care. 7) Feel free to take this copy of the exam with you. The answer key will be posted on the web after the exam (under "News"). Hints 1) As you read the question, underline or circle key words to highlight them for yourself. 2) Questions have only one correct answer, unless indicated otherwise. No partial credit will be given. 3) There is no penalty for guessing.
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Chem 210 Practice Exam 1C 2 1. (4 pts) Cycloalkanes with the formula of C 6 H 12 have 12 different constitutional isomers. What is the maximum number of tertiary carbons possible in any of them? a) 1 b) 2 c) 3 d) 4 e) 5 2. (4 pts) Dipole moments usually are measured on collections of molecules, and represent average values for all conformations present. Which of the following collections of molecules will show a dipole moment (lone pairs are not shown explicitly)? A: ClH 2 CCH 2 Cl B: NH 3 C: BF 3 D: H 3 COCH 3 E: (CCl 3 ) 2 a) A and C b) A and E c) B and C d) B and E e) A , B , and D f) A , C , and E g) B , C , and E 3-5. Consider all equivalent resonance structures for the cyclopentadienyl cation shown below.
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practice-1C - Chem 210 Practice Exam 1C Organic Chemistry:...

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