Test bank for organic chemistry 2nd edition by klein

Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Chapter One Topic: Introduction to Organic Chemistry Section: 1.1 Difficulty Level: Easy A) B) C) D) E) Chemical reactions occur as a result of: Attraction between opposite charges Nucleus–Nucleus interactions Motion of electrons Like atoms interacting Combining two chemicals Ans: C Topic: Introduction to Organic Chemistry Section: 1.1 Difficulty Level: Easy Credit for the first synthesis of an organic compound from an inorganic precursor is generally ascribed to: A) Berzelius B) Arrhenius C) Kekulé D) Wöhler E) Lewis Ans: D Topic: Introduction to Organic Chemistry Section: 1.1 Difficulty Level: Easy A) B) C) D) E) What was long thought to be the difference between inorganic and organic compounds? The number of atoms The synthesis of organic compounds required a vital force The molecular weight Inorganic compounds exhibited a strong nuclear force Inorganic compounds were composed exclusively of transition metals Ans: B Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein A) B) C) D) E) Constitutional isomers may not differ in what aspects? Physical properties Atomic connectivity Molecular formula Name Constitution Ans: C Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Easy What is the relationship between the following compounds? H H O H C C C C C H H H H H H H O H C C C C H H C H H H A) B) C) D) E) They are isotopes They are constitutional isomers They are the same structure They are composed of different elements There is no relationship Ans: B Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Easy What is the relationship between the following compounds? H A) B) C) D) H H C C H H H O C H H H H H H C C C H H H O H Resonance isomers Constitutional isomers Empirical isomers There is no relationship Ans: B Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein A) B) C) D) E) Carbon generally forms four bonds and is considered: Tetravalent Divalent Trivalent Monovalent Qudravalent Ans: A Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Medium Which of the following compounds are constitutional isomers of each other? H H C H C Br H C C Cl C H H H Cl C II I C H Br H H C C Br H C C H H H H C C C C C III H C C H H C C C H C H H C C H C H A) B) C) D) E) C C H H C H C H C Br C Br H C H Cl IV Cl H H I & II III & IV I, II & III II, III & IV All of these Ans: E Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Medium Which of the following compounds are constitutional isomers of each other? H Cl H C C H Cl I A) B) C) D) E) Cl Cl Cl H C C Cl Cl H II I & II III & IV II & III I & IV All of these Ans: D H Cl H C C H H III Cl H H Cl C C H Cl Cl IV Topic: The Structural Theory of Matter Section: 1.2 Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Difficulty Level: Medium 10 Which of the following compounds are constitutional isomers of each other? H H H C N H C H H C O H H A) B) C) D) E) C H I H C H II I & II III & IV I, II & III I & IV All of these Ans: C N O H H H H C H H C H C H H H O C C C H H H H N C H H H H H O C C C N H C H III IV H H Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Medium 11 Draw three constitutional isomers that have molecular formula C4H8BrCl H Br H H Ans: H H Br H H Cl Br H H C C C C H H H H Cl H C C C C H H H H H H C C C C H H Cl H H There are additional correct answers Topic: The Structural Theory of Matter Section: 1.2 Difficulty Level: Hard 12 Draw three constitutional isomers that have molecular formula C4H8O H H H H O H H Ans: H C C C C H H H H O H H C C C H H H C H H C C C H H H O H C H H There are additional correct answers Topic: Electrons, bonds, and Lewis structures Section: 1.3 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 13 A) B) C) D) E) What force is not taken into account in the formation of a covalent bond? Repulsion between two positively charged nuclei Repulsion between electron clouds on individual atoms Force of attraction between positively charged nuclei and electrons Repulsion of electrons by neutrons All forces listed are involved in forming a covalent bond Ans: D Topic: Electrons, bonds, and Lewis structures Section: 1.3 Difficulty Level: Easy 14 What is the correct Lewis dot structure for S? A) B) C) D) E) S S S I II III S IV S V I II III IV V Ans: C Topic: Electrons, bonds, and Lewis structures Section: 1.3 Difficulty Level: Easy 15 What is the correct Lewis dot structure for C? A) B) C) D) E) C C C I II III C IV C V I II III IV V Ans: E Topic: Electrons, bonds, and Lewis structures Section: 1.3 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 16 What is the correct Lewis structure for PH3? H H P H H P I H A) B) C) D) E) H P H H II P P H H III IV H P P H H V I II III IV V Ans: A Topic: Electrons, bonds, and Lewis structures Section: 1.3 Difficulty Level: Easy 17 What is the correct Lewis structure for COCl2? C O Cl C O I A) B) C) D) E) I II III IV V Ans: B Cl Cl C Cl II Cl O III C Cl Cl O IV O Cl Cl C Cl V Topic: Electrons, bonds, and Lewis structures Section: 1.3 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 18 What is the correct Lewis structure for CH3CO2H? H H H C C H O O C H H I H H O C C H A) B) C) D) E) H I II III IV V Ans: D H O C O H H C O O C H H II III H O H H C H IV C O O H V Topic: Electrons, bonds, and Lewis structures Section: 1.3 Difficulty Level: Hard 19 A) B) C) D) E) Which of the following compounds has two lone pairs on the central atom? CO2 SCl2 NF3 CS2 SO3 Ans: B Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy 20 What is the formal charge on oxygen in the following structure? H H A) B) C) D) E) C O H H H 212+ 1+ Ans: D Topic: Identifying Formal Charges Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Section: 1.4 Difficulty Level: Easy 21 What is the formal charge on nitrogen in the following structure? H H C H H C N H A) B) C) D) E) H 212+ 1+ Ans: D Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy 22 What is the formal charge on oxygen in the following structure? H O H C H C H A) B) C) D) E) H C H H 1+ 2+ 12Ans: B Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 23 What is the formal charge on oxygen in the following structure? H O H C H A) B) C) D) E) C H H H 2+ 21+ 10 Ans: E Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy 24 Which of the following structures have zero formal charge on carbon atom? H H A) B) C) D) E) C H H C H I H H H II H C III H H C IV I & III II & III III & IV I & IV II & IV Ans: C Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy 25 Which of the following structures have 1- formal charge on sulfur atom? H H H H O S H C H A) B) C) D) E) I S H C S H C H O O H II III H C H S IV H H O S O O H V I II III IV V Ans: A Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 26 Which of the following structures have 1+ formal charge on sulfur atom? H H H H O S H C S H C H H A) B) C) D) E) S C O O H II I H III H C H S IV H H O S O O H V I II III IV V Ans: C Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy 27 What are the formal charges on boron and fluorine in the following structure? F H F B N H H F A) B) C) D) E) B = 1+, N = 1+ B = 1+, N = 1B = 1-, N = 1B = 1-, N = 1+ B = 1-, N = Ans: D Topic: Identifying Formal Charges Section: 1.4 Difficulty Level: Easy 28 What are the formal charges on boron and oxygen in the following structure? H H F C H F B O F C H H H A) B) C) D) E) B = 1-, O = 1B = 1-, O = 1+ B = 1+, O = 1+ B = 1+, O = 1B = 1-, O = Ans: B Topic: Identifying Formal Charges Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 151 What are the hybridization state, molecular geometry and approximate bond angle for methyl cation, CH3+? A) sp2, tetrahedral, 1090 B) sp2, trigonal planar, 1200 C) sp3, tetrahedral, 109.50 D) sp3, trigonal pyramidal, 1200 E) sp2, trigonal pyramidal, 1800 Ans: B Topic: VSEPR Theory: Predicting Geometry Section: 1.10 Difficulty Level: Medium 152 What are the hybridization state, molecular geometry and approximate bond angle for methyl anion, CH3—? A) sp2, tetrahedral, 1090 B) sp2, trigonal planar, 1200 C) sp3, tetrahedral, 109.50 D) sp3, trigonal pyramidal, 109.50 E) sp2, trigonal pyramidal, 1800 Ans: D Topic: VSEPR Theory: Predicting Geometry Section: 1.10 Difficulty Level: Hard 153 Draw Lewis structure for SOCl2 and predict the hybridization state, molecular geometry and approximate bond angle around the central atom O Ans: Cl S Cl S: sp3, tetrahedral, 109.50 Topic: VSEPR Theory: Predicting Geometry Section: 1.10 Difficulty Level: Hard 154 Draw Lewis structure for COCl2 and predict the hybridization state, molecular geometry and approximate bond angle around the central atom O Ans: Cl C Cl C: sp2, trigonal planar, 1200 Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Topic: VSEPR Theory: Predicting Geometry Section: 1.10 Difficulty Level: Hard 155 Following is the structure for Propranolol, and antihypertensive drug What are the hybridization state, molecular geometry and approximate bond angle at the indicated nitrogen and oxygen atom in Propranolol? H H H H H H C H H C O H CH3 C N H O H H H CH3 H H Ans: N: sp3, trigonal pyramidal, 109.50 O: sp2, bent, 109.50 Topic: VSEPR Theory: Predicting Geometry Section: 1.10 Difficulty Level: Hard 156 What are the hybridization state, molecular geometry and approximate bond angle at each nitrogen atom in the following compound? O H3C H C O C H CH3 H N C C C C H II H C N H C H I H H Ans: N(I): sp2, bent, 1200 N(II): sp2, trigonal planar, 1200 Topic: VSEPR Theory: Predicting Geometry Section: 1.10 Difficulty Level: Hard Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 157 Tryptophan is an essential amino acid important in the synthesis of neurotransmitter serotonin in the body What are the hybridization state, molecular geometry and approximate bond angle at the indicated carbon and nitrogen atoms? I II H H C H C O H C O H C C N H C H H IV C C C H C C H H N III H Ans: C(I): sp2, trigonal planar, 1200 C(II): sp3, tetrahedral, 109.50 C(III): sp2, trigonal planar, 1200 N(IV): sp3, trigonal pyramidal, 109.50 Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Easy 158 A) B) C) D) E) Which of the following covalent bonds has the largest dipole moment? C—C C—H C—O N—H H—F Ans: E Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Easy 159 A) B) C) D) E) Which of the following compounds has no dipole moment? CH4 NH3 HF HCl HBr Ans: A Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 160 A) B) C) D) E) Which of the following compounds has polar covalent bonds? NH3 Na2O H2 KF Both A & C Ans: A Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium 161 A) B) C) D) E) Which of the following compounds have net dipole moment? CBr4 CO2 CH4 H2O C2H4 Ans: D Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium 162 A) B) C) D) E) Which of the following compounds does not have dipole moment? HCl NCl3 CO BF3 All have dipole moment Ans: D Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 163 Which of the following compounds has net dipole moment of zero? H F C H H F C C F A) B) C) D) E) H C C H H F C F F III II I C F F H H C IV Cl C F F C V H I II III IV V Ans: A Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium 164 Which of the following compounds have a dipole moment? H H O A) B) C) D) E) C I O N C O II II III II & III I, II & III II, III & IV Ans: E N C III S C O IV Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 165 Rank the following compounds in order of decreasing (highest to lowest) dipole moment H C F C C F A) B) C) D) E) H F F H C H C F II I H C F F III I>II>III II>III>I I>III>II III>II>I II>I>III Ans: D Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Hard 166 Rank the following compounds in order of decreasing (highest to lowest) dipole moment H H H C C H H I C C C H H H H C C O C C H C C C H H H I>II>III II>III>I I>III>II III>I>II II>I>III Ans: D H C C H O H A) B) C) D) E) H C C H H C C H O O O O II H H H H III Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 167 Which of the following compounds have a dipole moment? Indicate the direction of dipole moment H F C H C Cl C F H C F H II I Ans: Compound I has no dipole moment Compound II has dipole moment H Cl C C F H II Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium 168 Which of the following compounds have a dipole moment? Indicate the direction of dipole moment Br Br H C H H C C H C C C C C H C H H H C F Br I II Ans: Compound II has no dipole moment Compound I has a dipole moment Br Br H C C H H C C C C C H C H C H H C F Br I II H Topic: Dipole Moments and Molecular polarity Section: 1.11 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 169 BF3 has a no dipole moment a) Draw the Lewis structure for BF3, showing all nonbonding electrons b) Indicate the polarity of every atom in the structure using δ+ and δ– notation, and c) explain why the molecule has no net dipole δ− δ+ Ans: δ− F B F F δ− The trigonal planar geometry of BF3 results in the cancellation of individual bond dipoles, producing a net molecular dipole of zero Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy 170 A) B) C) D) E) Which of the intermolecular forces listed below is generally considered the strongest? London dispersion forces Fleeting dipole-dipole interactions Dipole-dipole interactions Hydrogen bonding The Vital force Ans: D Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy 171 A) B) C) D) E) Which intermolecular force is generally considered the weakest? Ion-dipole interactions London dispersion forces Dipole-dipole interactions Hydrogen bonding Covalent bonding Ans: B Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 172 Which intermolecular force is primarily responsible for base pairing, and stability, of the double helix in DNA? A) Ion-dipole interactions B) London dispersion forces C) Dipole-dipole interactions D) Hydrogen bonding E) Covalent bonding Ans: D Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy 173 What is the strongest intermolecular force present in the following compound? H A) B) C) D) E) H H H H C C C C H H H H O H Ion-dipole interactions London dispersion forces Dipole-dipole interactions Hydrogen bonding Covalent bonding Ans: D Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy 174 What is the strongest intermolecular force present in the following compound? H A) B) C) D) E) H H H H C C C C H H H H S H Ion-dipole interactions London dispersion forces Dipole-dipole interactions Hydrogen bonding Covalent bonding Ans: C Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 175 Which of the following statements best explains the observation that HF has the highest boiling point of all the hydrogen halides? A) The fluorine in HF is the smallest atom for all of the halogens B) Fluorine is the most electronegative of the atoms C) HF can participate in hydrogen bonding D) HF is very reactive and can react and dissolve glass E) HF is a weak acid, and doesn’t completely dissociate Ans: C Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Medium 176 Which of the following compounds have the greatest fleeting dipole interactions between like molecules? H H H H H H C H C C H H C H C H H H C H H H H H C C C H H H H C H C C H H H C H H H H II I A) B) C) D) E) C H H H H H H C H H H H H H H C C C C C C H H H H H H IV III I II III IV I, III & IV Ans: D H Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy 177 Which of the following compounds have the highest boiling point? H A) B) C) D) E) H H H H H C C C C C H H H H H I II III IV II & IV Ans: B I H H H H H H C C C C H H H H O H II H H H C C H H O III H H C C H H H H H H H C C C H H H Cl IV Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 178 Which of the following compounds have the lowest boiling point? H H A) B) C) D) E) H H H H H C C C C C H H H H H I II III IV II & IV Ans: C H H H H H H C C C C H H H H O H H H H C H H H C C C C H H H H H H C C C H H H Cl IV III II I H H H Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy 179 A) B) C) D) E) Which of the following compounds have the lowest boiling point? CH3Cl CH2Cl2 CH4 CHCl3 CCl4 Ans: C Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Easy 180 Which of the following compounds have the lowest boiling point? H H H H H H C H C C C C H H H H I A) B) C) D) E) I II III IV I & III Ans: C H H H C H H H C C H H II H H C C H H H H H C H H H H C C C H C H H H H III H H H H H H H H C C C C C C H H H H H H H IV Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 181 Rank the following compounds in decreasing (highest to lowest) order of boiling point? H H H H H H C H C C H C H H C H H C H H H H H H C C C C H H H C H C C H H H C H H H H II I A) B) C) D) E) H H H H H H H C H H H H H H H C C C C C C H H H H H H IV III III>I>IV>II II>I>IV>III III>I>II>IV IV>II>I>III I>III>II>IV Ans: D H Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Hard 182 Rank the following compounds in decreasing (highest to lowest) order of boiling point? H H H H H H H C C C C C H H H I A) B) C) D) E) H H H H H H H H C C C C H H H O H H H II III>I>IV>II II>IV>I>III III>I>II>IV IV>II>I>III I>III>II>IV Ans: B H H C H H H C C C C H H III H H H H H H H H C C C C N H H H H H H IV Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Hard Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 183 Rank the following compounds in decreasing (highest to lowest) order of boiling point? H H A) B) C) D) E) H H H H C C C C H H H H H O H H H C C H H O H H C C H H H II I H O H H H C C C H H H III O H H H H O H C C C C H H H H H IV III>I>IV>II II>IV>III>II III>I>II>IV IV>II>I>III I>III>II>IV Ans: A Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Medium 184 Which of the following compounds have a higher boiling point? Explain why H H H H H H C H C C C C H H H H H H C H H H H H H C C C C H H H H H II I Ans: Compound II has a higher boiling point than compound I Compound II has larger surface area that allows for stronger fleeting dipole-dipole interactions between molecules Topic: Intermolecular Forces and Physical Properties Section: 1.12 Difficulty Level: Medium 185 Which of the following compounds have a higher boiling point? Explain why H H H H H C C C C H H H H I O H H H H C C H H O H H C C H H H II Ans: Compound I has a higher boiling point than compound II Compound I has hydrogen bonding interactions between molecules Compound II has dipoledipole interactions that are weaker than hydrogen bonding interactions Topic: Solubility Section: 1.13 Difficulty Level: Easy Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 186 Which of the following compounds is most soluble in water? H A) B) C) D) E) H H H H H C C C C C H H H H H I II III IV II & III Ans: B H H H H H H C C C C H H H H O H H H H C C H H H C C H H H H H H H C C C H H H Cl IV III II I O H Topic: Solubility Section: 1.13 Difficulty Level: Easy 187 Which of the following compounds is most soluble in butane (CH3CH2CH2CH3)? H A) B) C) D) E) H H H H H C C C C C H H H H H I II III IV II & III Ans: A I H H H H H H C C C C H H H H II O H H H H C C H H O III H H C C H H H H H H H C C C H H H Cl IV Topic: Solubility Section: 1.13 Difficulty Level: Medium 188 A) B) C) D) E) For soap to remove and dissolve oil in water, what molecular features are needed? One end of the molecule must be polar The compound must contain oxygen atoms One end of the molecule must be nonpolar Both A & C All A, B & C Ans: D Topic: Solubility Section: 1.13 Difficulty Level: Medium Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein 189 Amino acids are building blocks of proteins Which statement best describes the physical properties of the following amino acid? H A) B) C) D) E) O O H C C N H H H high melting points and low solubility in water large dipole moments and no hydrogen bonding high melting points and large dipole moments low solubility in water and small dipole moments small dipole moments and are hydrophobic Ans: C Topic: Solubility Section: 1.13 Difficulty Level: Medium 190 Sugars, an example of which is shown below, tend to be very soluble in water Explain why H OH H H C C C HO H H C HO O C H C OH OH H (The lone pairs of electrons on the oxygen atoms are not shown for clarity) Ans: Favorable hydrogen bonding between the sugar and water readily occurs as both contain O–H groups capable of hydrogen bonding Topic: Solubility Section: 1.13 Difficulty Level: Medium 191 Describe how soaps function as cleaning agents Ans: Soaps form clusters called micelles The polar groups of the soaps form the surface of the micelle and hydrogen bond to the surrounding water The interior of the micelle is composed of the nonpolar, hydrophobic portions of the soap molecules Grease and dirt are nonpolar and have limited solubility in water In soapy water however, grease and dirt will dissolve in the nonpolar interior of the soap micelles, which in turn are soluble in the water Full file at https://TestbankDirect.eu/Test-Bank-for-Organic-Chemistry-2nd-Edition-by-Klein ... https://TestbankDirect.eu /Test- Bank- for- Organic- Chemistry- 2nd- Edition- by- Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu /Test- Bank- for- Organic- Chemistry- 2nd- Edition- by- Klein. .. https://TestbankDirect.eu /Test- Bank- for- Organic- Chemistry- 2nd- Edition- by- Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu /Test- Bank- for- Organic- Chemistry- 2nd- Edition- by- Klein. .. https://TestbankDirect.eu /Test- Bank- for- Organic- Chemistry- 2nd- Edition- by- Klein Test Bank for Organic Chemistry 2nd Edition by Klein Full file at https://TestbankDirect.eu /Test- Bank- for- Organic- Chemistry- 2nd- Edition- by- Klein