45669583-Organic-Practice
956 Pages

45669583-Organic-Practice

Course Number: CHEM 2410, Spring 2012

College/University: Toledo

Word Count: 115527

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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where is negative. a place where is positive. a place where = 0. a place where 2 is large. a place where 2 is negative. Ans: C Topic: Atomic Orbitals, Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, how many...

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1 MULTIPLE Chapter CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where is negative. a place where is positive. a place where = 0. a place where 2 is large. a place where 2 is negative. Register to View Answer Topic: Atomic Orbitals, Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Register to View AnswerTopic: Atomic Orbitals 3. Which principle(s) or rule must be used to determine the correct electronic configuration for carbon in its ground state? A) Aufbau Principle B) Hund's Rule C) Pauli Exclusion Principle D) (A) and (B) only E) All three Register to View Answer 1 Chapter 1 Topic: Atomic Orbitals, Bonding 4. What point on the potential energy diagram below represents the most stable state for the hydrogen molecule? A) B) C) D) E) I II III IV V Register to View Answer Topic: Atomic Orbitals, Molecular Orbitals 5. A) B) C) D) E) According to molecular orbital theory, which molecule could not exist? H2 He2 Li2 F2 N2 Ans: Atomic B Topic: Orbitals, Molecular Orbitals 6. 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 B) Two bonding molecular orbitals C) One bonding molecular orbital and one antibonding molecular orbital D) Two antibonding molecular orbitals E) Three bonding molecular orbitals Register to View Answer 2 Chapter 1 Topic: Atomic Orbitals, Hybridization 7. The following electron configuration represents _______. A) B) C) D) E) 1s 2sp3 2sp3 2sp3 2sp3 the ground state of boron. the sp3 hybridized state of carbon. the sp3 hybridized state of nitrogen. the ground state of carbon. an excited state of carbon. Register to View Answer Topic: Atomic Orbitals, Molecular Orbitals 8. According to molecular orbital theory, in the case of a carbon-carbon double bond, the carbon-carbon bonding electrons of higher energy occupy this molecular orbital. A) bonding MO B) bonding MO C) * antibonding MO D) * antibonding MO E) * bonding MO Register to View AnswerTopic: Atomic Orbitals, Hybridization 9.
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