Struktur-Bindn-Sva - Chap ter 1 Chap ter 1 MULTIPLE CHOICE QUESTIONS Solomons Chapter 1(Answers on page 14 Topic Atomic Orbitals Molecular Orbitals

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Chapter 1 1 MULTIPLE CHOICE QUESTIONS Solomons Chapter 1 (Answers on page 14) Topic: Atomic Orbitals, Molecular Orbitals Hybridization 1. When the 1 s 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 2. 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 3. The following electron configuration represents _______. 1s 2sp 3 2sp 3 2sp 3 2sp 3 A) the ground state of boron. B) the sp 3 hybridized state of carbon. C) the sp 3 hybridized state of nitrogen. D) the ground state of carbon. E) an excited state of carbon. 4. Identify the atomic orbitals in the C-C sigma bond in ethyne. A) (2sp 2 , 2sp 2 ) B) (2sp 3 , 2sp 3 ) C) (2sp, 2sp) D) (2p, 2p) E) (2sp, 1s) Chapter 1 2 Topic: Lewis Structures, Formal Charges 5. Listed below are electron dot formulas for several simple molecules and ions. All valence electrons are shown; however, electrical charges have been omitted deliberately. H H H H H H I II III IV V H : Be : H H : B : H H : N : H H : N : H H : O : H .. .. .. .. .. .. .. .. Which of the structures actually bear(s) a positive charge? A) I B) II C) III D) III & V E) IV & V 6. What is the formal charge on oxygen in the following structure? O H 3 C CH 3 CH 3 . . A) +2 B) +1 C) 0 D) -1 E) -2 7. In which structure(s) below does the oxygen have a formal charge of +1? O C H H O H O H H H O H 3 C CH 3 CH 3 II III IV I .. .. .. .. : .. H A) I only B) II only C) I and III D) I and IV E) I, III, and IV
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Chapter 1 3 8. Which structure(s) contain(s) an oxygen that bears a formal charge of +1? O H 3 C CH 3 CH 3 IV O H 3 C H H III O C O II O C H O I O C O O V .. .. .. : : .. .. .. : : : .. .. : : : .. : : A) I and II B) III and IV C) V D) II E) I and V 9. Which of the following molecules or ions has a nitrogen with a formal charge of -1? (Charges on ions have been omitted.) A) N H H .. : B) N H H H . . C) N H CH 3 H . . D) N H 3 C CH 3 H . . E)
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This note was uploaded on 02/07/2011 for the course CHEM 2210 taught by Professor Robertson during the Spring '11 term at University of Central Florida.

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Struktur-Bindn-Sva - Chap ter 1 Chap ter 1 MULTIPLE CHOICE QUESTIONS Solomons Chapter 1(Answers on page 14 Topic Atomic Orbitals Molecular Orbitals

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