TEST BANK FOR Organic Chemistry 12th Edition By T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder Chapter 1-25 | (VERIFIED)

TEST BANK FOR Organic Chemistry 12th Edition By T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder Chapter 1-25 | (VERIFIED) Which of the following best describes the origin of carbon atoms? a) The Big Bang b) amino acids found on meteorites c) byproduct of chemical fusion in stars d) gradual decay of radioactive isotopes of nitrogen e) All of these choices. Answer: C Topic: General Section: 1.1 Difficulty Level: Easy 2) Credit for the first synthesis of an organic compound from an inorganic precursor is usually given to ___. a) Berzelius b) Arrhenius c) Kekule d) Wöhler e) Lewis Answer: D Topic: General Section: 1.1 Difficulty Level: Easy 2 3) 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. Answer: B Topic: Atomic Orbitals, Periodic Trends, Electronegativity Section: 1.3 Difficulty Level: Easy 4) Select the least electronegative element from the list below. a) P b) N c) Mg d) Si e) K Answer: E Topic: Periodic Trends, Electronegativity Section: 1.3 Difficulty Level: Easy 5) Select the most electronegative element from the list below. a) H b) O c) N d) B e) C Answer: B Topic: Periodic Properties, Electronegativity Section: 1.3 Difficulty Level: Easy 3 6) Which of these substances contain both covalent and ionic bonds? a) NH4Cl b) H2O2 c) CH4 d) HCN e) H2S Answer: A Topic: Bonding Section: 1.3 Difficulty Level: Medium 7) Which type of bonding is present in the compound CH3Li? a) Ionic bonding b) Covalent bonding c) Hydrogen bonding d) Ionic and covalent bonding e) Ionic, covalent, and hydrogen bonding Answer: D Topic: Bonding Section 1.3 Difficulty Level: Medium 8) Which of the following is the Lewis structure for CH3CH2O2H? a) b) c) d) e) None of these choices. H C C H H H O O H H H C O H H C O H H H C C H H O O H H H H C O H H C O H H H 4 Answer: A Topic: Lewis Structures Section: 1.4 Difficulty Level: Medium 9) In which of the following does the central atom have 2 pairs of non-bonding electrons? a) O3 b) CO2 c) CO3 2– d) NH4 + e) H2S Answer: E Topic: Lewis Structures Section: 1.4 Difficulty Level: Medium 10) Which is NOT a correct Lewis structure? a) H N F H . . . . : b) H C F H H : . . . . c) H O O . . . . H . . . . d) O O B O . . . . : : . . . . H H H e) None of these choices. Answer: A Topic: Lewis Structures, Formal Charges Section: 1.4 Difficulty Level: Medium EMAIL ME: 5 11) Which of these is a correct electron-dot representation of the nitrite ion, NO2 – ? IV I II III V : O : N : : O : O : : N : O : : O : : N : : O : O : N : O : : O : : N : O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a) I b) II c) III d) IV e) V Answer: A Topic: Lewis Structures, Formal Charges Section: 1.4 Difficulty Level: Medium 12) Which of the following is the Lewis structure for CH3CO2H? a) b) c) d) e) H C C H H H O O H H C H H H C O O H H C C H H O O H H C O H H C O H EMAIL ME: 6 Answer: D Topic: Lewis Structures Section: 1.4 Difficulty Level: Hard 13) Considering Lewis structures, which of these compounds possesses a single unpaired electron? a) N2 b) N2O c) NO d) N2O4 e) O2 Answer: C Topic: Lewis Structures Section: 1.4 Difficulty Level: Hard 14) Y Z Y . . . . is a generalized structural representation which can be used for all of the following, except: a) H2O b) H2Se c) H2S d) BeH2 e) There is no exception. Answer: D Topic: Lewis Structures Section: 1.4 Difficulty Level: Hard 15) Expansion of the valence shell to accommodate more than eight electrons is possible with ___. a) fluorine b) nitrogen c) carbon