Sample Exam 1 - City College of New York Spring 2011 CHEM...

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City College of New York Spring 2011 Sample Exam 1 CHEM 261 Organic Chemistry I Dr. Sean Boson Name: _______________________ Chapters 1 - 4 (Please print) Multiple choice questions. All questions are of equal value. Select and mark the best answer. The choice of multiple answers will void the answer altogether. (20x4 = 80 points) 1. Which of the following would have a trigonal planar structure? A. I, II, and III B. II and IV C. IV D. II, IV, and V E. All of the choices are correct. 2. From the list of structures below, which bear(s) a positive charge? A. I B. II C. II D. III and IV E. IV and V 3. Of the molecules listed, which does not have a dipole moment? A. HCl B. NCl 3 C. CO D. BF 3 E. All molecules have a dipole moment. 4. What kind of molecular orbital results when the two atomic orbitals shown below interact in the manner indicated? A. σ molecular orbital B. σ* molecular orbital C. π molecular orbital
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D. π* molecular orbital E. none of these 5. Which is the resonance hybrid for the resonance structures shown below?
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Sample Exam 1 - City College of New York Spring 2011 CHEM...

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