Orgo Exam 1 2010 with Answers

Orgo Exam 1 2010 with Answers - CHEM 222 EXAM 1 1 A B C D E...

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CHEM. 222 EXAM # 1 10/8/10 1. How many sigma 1s-2sp 3 bonds are there in ethane? A) 7 B) 6 C) 5 D) 3 E) 1 Ans: B 2. Which of the following is a set of constitutional isomers? A) I and II B) II and III C) I, II, and III D) II, III, and IV E) I, III, and IV Ans: E 3. Consider the following: CH 3 CH 2 CH=CHCH I CH 3 CH=CHCH 2 CH III Which two structures represent the same compound? A) I and II B) II and III C) I and III D) II and IV E) None of these Ans: D
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III II IV N N N N N (2) 4. The greatest degree of ionic character is anticipated for the bond between: A) H and C B) H and Cl C) C and Cl D) H and Br E) Br and Cl Ans: B 5. In which of the following does the central atom have 2 pairs of non-bonding electrons? A) O 3 B) CO 2 C) CO 3 2- D) NH 4 + E) H 2 S Ans: E 6. Which of the following species is/are a resonance form(s) of the species in the box? A) I and II B) I and III C) III and IV D) III E) More than two of them are correct resonance forms. Ans: B 7. When the ls orbitals of two hydrogen atoms combine to form a hydrogen molecule, which molecular orbitals are formed? A) One bonding molecular orbital only
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This note was uploaded on 10/27/2010 for the course CHEMISTRY 222 LEC taught by Professor Santoro during the Fall '09 term at CUNY Hunter.

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Orgo Exam 1 2010 with Answers - CHEM 222 EXAM 1 1 A B C D E...

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