HALOALKANES AND HALOARENES 0% 0 Halogens and Haloarenes 1 / 78 1. Which statement correctly describes the difference between allylic and benzylic halides? A) Allylic halides have the halogen on a carbon adjacent to a double bond, while benzylic halides have the halogen on a carbon attached to an aromatic ring. B) Allylic halides have the halogen on a carbon-carbon triple bond, while benzylic halides have the halogen on a carbon-carbon single bond. C) Allylic halides have the halogen on an aromatic ring, while benzylic halides have the halogen on a carbon-carbon double bond. D) There is no difference; they are both the same. 2 / 78 2. The compound in structure (vi) would be named as: A) 1-Bromo-2-ene B) 3-Bromo-1-ene C) 2-Bromo-1-ene D) 1-Bromo-3-ene 3 / 78 3. Which synthetic halogen compound is primarily used for the treatment of malaria? A) Halothane B) Thyroxine C) Chloramphenicol D) Chloroquine 4 / 78 4. The IUPAC name for the compound depicted in structure (iii) is: A) 1-Bromo-2,2-dimethylpropane B) 2-Bromo-3,3-dimethylpropane C) 2-Bromo-2-methylpropane D) 1-Bromo-3,3-dimethylpropane 5 / 78 5. Which of the following carbon-halogen bonds has the highest bond enthalpy? A) C-F B) C-I C) C-Cl D) C-Br 6 / 78 6. According to the IUPAC nomenclature, what do the numbers 1, 2, 1', and 3' represent in dihalogen derivatives? A) The order in which the carbon atoms are counted B) The total number of carbon and halogen atoms C) The priority of the halogen atoms D) The carbon atoms to which the halogens are attached 7 / 78 7. The IUPAC name for the compound commonly known as ethylene chloride is: A) 1,2-Dichloroethylene B) Dichloroethylene C) 1,1-Dichloroethane D) 1,2-Dichloroethane 8 / 78 8. What is the application of halothane? A) Blood substitute in surgery B) Anesthesia during surgery C) Treatment of typhoid fever D) Treatment of malaria 9 / 78 9. A secondary (2°) alkyl halide has the halogen atom attached to a carbon that is also connected to: A) Two other carbon atoms B) Four other carbon atoms C) One other carbon atom D) Three other carbon atoms 10 / 78 10. In the naming of dihalogenated benzene, what do the prefixes o-, m-, and p- represent in the common naming system? A) The number of halogen atoms B) The type of halogen atoms C) Ortho, meta, and para positions relative to each other D) The presence of a functional group 11 / 78 11. Allylic halides are characterized by a halogen atom bonded to: A) An sp3-hybridized carbon atom attached to an aromatic ring B) An sp2-hybridized carbon atom C) An sp-hybridized carbon atom D) An sp3-hybridized carbon atom adjacent to a carbon-carbon double bond 12 / 78 12. Which type of carbon-halogen bond is present in benzylic halides? A) sp C-X bond B) sp2 C-X bond C) sp3 C-X bond D) sp3d2 C-X bond 13 / 78 13. As you go down the group in the periodic table, what happens to the carbon-halogen bond length in alkyl halides? A) It fluctuates unpredictably B) It decreases C) It increases D) It remains the same 14 / 78 14. Which of the following is a true statement regarding aryl halides? A) They contain halogen atoms bonded to sp3-hybridized carbon atoms adjacent to a benzene ring. B) They contain halogen atoms bonded to carbon atoms in a carbon-carbon triple bond. C) They contain halogen atoms bonded to sp-hybridized carbon atoms. D) They contain halogen atoms bonded to sp2-hybridized carbon atoms in a benzene ring. 15 / 78 15. The halogens that typically form sp3 C-X bonds in alkyl halides are: A) Fluorine, Chlorine, Bromine, and Iodine B) Chlorine, Bromine, Iodine, and Astatine C) Nitrogen, Oxygen, Fluorine, and Chlorine D) Sulfur, Phosphorus, Fluorine, and Bromine 16 / 78 16. To prepare alkyl bromides from alcohols, which reagent can be used? A) Hydrobromic acid (HBr) B) Hydrochloric acid (HCl) C) Phosphorus tribromide (PBr₃) D) Hydroiodic acid (HI) 17 / 78 17. When preparing alkyl iodides from alcohols, what is typically used? A) Concentrated sulfuric acid B) Concentrated hydrochloric acid C) Red phosphorus and bromine D) Red phosphorus and iodine 18 / 78 18. The compound CHCl3​ is known by what IUPAC name? A) Trichloromethane B) Dichloromethane C) Tetrachloromethane D) Chloroform 19 / 78 19. The preparation of alkyl chlorides can be carried out by passing dry hydrogen chloride gas through: A) A dry solution of alcohol B) A solution of alcohol and concentrated sulfuric acid C) An aqueous solution of alcohol D) A solution of alcohol and concentrated hydrochloric acid 20 / 78 20. Fully fluorinated compounds are considered potential substitutes for what in surgery? A) Anesthesia B) Blood C) Solvents D) Antibiotics 21 / 78 21. In the IUPAC system of nomenclature for alkyl halides, the names are based on: A) The common name of the alkyl group followed by the halide B) The length of the carbon chain only C) The alphabetical order of the substituents D) The halosubstituted hydrocarbons 22 / 78 22. Vic-dihalides are named based on the presence of: A) Two halogens on the same carbon atom. B) Halogens on tertiary carbon atoms. C) Two halogens on aromatic rings. D) Two halogens on two adjacent carbon atoms. 23 / 78 23. The term "polyhalogen" refers to compounds with: A) A halogen atom in a ring structure B) Three or more halogen atoms C) One halogen atom D) Exactly two halogen atoms 24 / 78 24. Which reagent is commonly used for converting alcohols directly into alkyl chlorides? A) SOCl₂ B) NaBr + H₂SO₄ C) PCl₅ D) ZnCl₂ 25 / 78 25. The compound CH3CH(Cl)CH3 is named as 2-Chloropropane in the IUPAC system because: A) The chlorine is on the second carbon of a three-carbon chain. B) The chlorine is on the first carbon. C) The compound has two chlorine atoms. D) The compound is an isomer of propene. 26 / 78 26. The reaction of alcohols with thionyl chloride (SOCl₂) produces: A) Alkyl chloride, sulfur dioxide, and hydrogen chloride B) Alkyl chloride, sulfur dioxide, and water C) Alkyl chloride, sulfur trioxide, and hydrogen chloride D) Alkyl chloride, phosphorus pentachloride, and water 27 / 78 27. The general formula for alkyl halides is represented by: A) C <sub>n</sub>H<sub>2n+1</sub>​ X B) C <sub>n</sub>H<sub>n+1</sub>​ X C) C <sub>n</sub>H<sub>2n+2</sub>​ X D) C <sub>n</sub>H<sub>2n</sub>​ X 28 / 78 28. What is the IUPAC name for the compound with the common name n-Propyl fluoride? A) 2-Fluoropropane B) 1-Fluoropropane C) 1-Fluoro-2-methylpropane D) 3-Fluoropropane 29 / 78 29. Which of the following is the correct IUPAC name for CH3CH2CHBr2​? A) 1,3-Dibromopropane B) 1,1-Dibromopropane C) 2,2-Dibromopropane D) 1,2-Dibromopropane 30 / 78 30. A compound with the IUPAC name 1-bromo-2,2-dimethylpropane will have how many carbon atoms? A) Three B) Four C) Five D) Six 31 / 78 31. An alkyl halide is classified as primary (1°) when the halogen is attached to: A) A carbon atom that is bonded to three other carbon atoms B) A carbon atom that is bonded to two other carbon atoms C) A carbon atom that is bonded to one other carbon atom D) A carbon atom that is bonded to no other carbon atoms 32 / 78 32. In allylic halides, the halogen is attached to a carbon that is: A) Part of a carbon-carbon double bond B) Adjacent to a carbon-carbon triple bond C) Not adjacent to any double bonds D) Adjacent to a carbon-carbon double bond 33 / 78 33. Which type of carbon-halogen bond is typically formed in alkyl halides or haloalkanes? A) sp3 C-X bond B) sp2 C-X bond C) sp C-X bond D) sp3d2 C-X bond 34 / 78 34. Based on Table 6.2 (in previous question), what is the dipole moment of the carbon-bromine bond? A) 1.847 Debye B) 1.860 Debye C) 1.830 Debye D) 1.636 Debye 35 / 78 35. What is the clinical application of chloramphenicol? A) Treatment of goiter B) Blood substitute in surgery C) Treatment of malaria D) Treatment of typhoid fever 36 / 78 36. What type of hybridized carbon atoms are present in the structure of haloarenes? A) sp2 hybridized B) sp hybridized C) sp3 hybridized D) sp4 hybridized 37 / 78 37. Alkyl halides, also known as haloalkanes, are characterized by a halogen atom bonded to: A) A vinyl group B) An alkyl group C) An aromatic ring D) An alkoxy group 38 / 78 38. What is the IUPAC name for the compound shown in structure (i)? A) 1-Bromopentane B) 3-Bromopentane C) 4-Bromopentane D) 2-Bromopentane 39 / 78 39. What is the correct IUPAC name for structure (iv)? A) 4-Bromo-2-pentene B) 2-Bromopent-4-ene C) 4-Bromopent-2-ene D) 2-Bromo-4-pentene 40 / 78 40. In the context of vinylic halides, what does sp2 hybridization imply about the carbon to which the halogen is bonded? A) The carbon is part of a carbon-carbon double bond. B) The carbon is part of a carbon-carbon triple bond. C) The carbon is part of a carbon-carbon single bond. D) The carbon is bonded to an aromatic ring. 41 / 78 41. Free radical chlorination or bromination of alkanes tends to produce: A) A complex mixture of isomeric mono- and polyhaloalkanes B) Only dimeric compounds C) A single isomeric compound D) A single polyhaloalkane 42 / 78 42. The prefix 'iso' in isopropyl chloride indicates: A) A cyclic compound B) An isomeric compound C) A straight-chain compound D) A branched-chain compound 43 / 78 43. Which of the following compounds is an example of an aryl halide (haloarene)? A) Chloroquine B) Chloramphenicol C) Thyroxine D) Halothane 44 / 78 44. What is the IUPAC name for the compound with the common name m-Dibromobenzene? A) 1,3-Dibromobenzene B) 1,5-Dibromobenzene C) 1,4-Dibromobenzene D) 1,2-Dibromobenzene 45 / 78 45. Which alkyl halide bond would you expect to be the most polar? A) C-Br B) C-I C) C-F D) C-Cl 46 / 78 46. Vinylic halides are characterized by the halogen atom being bonded to: A) An sp2-hybridized carbon atom of a carbon-carbon double bond B) An sp3-hybridized carbon atom of a carbon-carbon single bond C) An sp2-hybridized carbon atom of an aromatic ring D) An sp-hybridized carbon atom 47 / 78 47. The addition of bromine to an alkene is an important reaction because it: A) Always results in a single product B) Is used to create bromine gas C) Tests for the presence of double bonds in a molecule D) Is a substitution reaction 48 / 78 48. Which carbon-halogen bond is the shortest according to Table 6.2? A) Carbon-Iodine B) Carbon-Bromine C) Carbon-Chlorine D) Carbon-Fluorine 49 / 78 49. Halogen atoms are more electronegative than carbon, which results in what kind of charge on the carbon in a carbon-halogen bond of an alkyl halide? A) A partial positive charge B) A full negative charge C) No charge D) A partial negative charge 50 / 78 50. The reaction of an alkene with a hydrogen halide (HX) follows: A) The Anti-Markovnikov's rule B) The syn-addition rule C) The anti-addition rule D) The Markovnikov's rule 51 / 78 51. Structure (v) is named as which of the following in IUPAC nomenclature? A) 3-Bromo-1-methylpropene B) 3-Bromo-2-methylpropene C) 2-Bromo-3-methylpropene D) 1-Bromo-3-methylpropene 52 / 78 52. The primary structural difference between vinylic halides and aryl halides is: A) The number of halogen atoms bonded to the carbon atom B) Whether the halogen is bonded to a carbon in a double bond or an aromatic ring C) The degree of hybridization of the carbon atom to which the halogen is bonded D) The type of carbon bond (single or double) to which the halogen is bonded 53 / 78 53. Which of the following is NOT a correct representation of a dihalo compound? A) CH<sub>2</sub>X-CH<sub>2</sub>X B) C<sub>2</sub>​H<sub>3</sub>​X C) CHX-CHX D) CHX-CH<sub>2</sub>X 54 / 78 54. The addition of halogens like bromine to an alkene results in: A) The formation of an alkene with a higher molecular weight B) No change in the color of the bromine solution C) The disappearance of the double bond and a change in the color of the bromine solution D) A change in the color of the bromine solution with the double bond intact 55 / 78 55. What is the general term used to describe the replacement of hydrogen atoms in hydrocarbons by halogen atoms? A) Hydrogenization B) Hydrogenation C) Halogenation D) Halogenization 56 / 78 56. The trend in bond enthalpies for carbon-halogen bonds as you go from fluorine to iodine generally shows that they: A) Stay the same B) Decrease C) Increase D) Increase then decrease 57 / 78 57. A secondary (2°) benzylic halide has its halogen atom bonded to a carbon atom that is: A) Not connected to any carbon atoms B) Attached to one other carbon which is part of an aromatic ring C) Attached to two other carbons where one is part of an aromatic ring D) Attached to an aromatic ring directly 58 / 78 58. In the context of haloarenes, what does the 'X' represent in the structures shown? A) Any alkyl group B) Any carbonyl group C) Any alkoxy group D) Any halogen atom 59 / 78 59. The common name for CH2​=CHCl is: A) Allyl chloride B) Vinyl chloride C) Chloroethene D) Ethylene chloride 60 / 78 60. A compound with two halogen atoms attached to different carbon atoms is called a: A) Trihaloalkane B) Dihaloalkane C) Tetrahaloalkane D) Monohaloalkane 61 / 78 61. gem-dihalides refer to: A) Compounds with two halogens on the same carbon atom. B) Compounds with two different halogens on the same carbon atom. C) Compounds with two halogens on opposite ends of a carbon chain. D) Compounds with two halogens on adjacent carbon atoms. 62 / 78 62. Aryl halides are compounds where the halogen atom is directly bonded to: A) A carbon atom that is part of a carbon-carbon single bond B) An sp2-hybridized carbon atom of an aromatic ring C) An sp-hybridized carbon atom of an aliphatic chain D) An sp3-hybridized carbon atom adjacent to an aromatic ring 63 / 78 63. Structure (ii) represents which of the following IUPAC names? A) 1-Bromo-2-methylbutane B) 1-Bromo-3-methylbutane C) 3-Bromo-2-methylbutane D) 2-Bromo-3-methylbutane 64 / 78 64. In the provided example, how many possible monochloro structural isomers can be formed from the free radical chlorination of CH3CH2CH2CH3? A) Four B) One C) Two D) Three 65 / 78 65. What deficiency disease is caused by the lack of thyroxine hormone in the body? A) Typhoid fever B) Surgery C) Goiter D) Malaria 66 / 78 66. Benzyl halides are compounds in which the halogen atom is bonded to: A) A carbon atom that is part of an aliphatic ring B) A benzene ring directly C) An sp3-hybridized carbon atom attached to an aromatic ring D) An sp-hybridized carbon atom 67 / 78 67. For monohalogen substituted derivatives of benzene, what is true about their common and IUPAC names? A) They are the same. B) They are different. C) The IUPAC name is based on the alphabetical order of substituents. D) The common name is always based on the historical name. 68 / 78 68. The hydroxyl group of an alcohol is replaced by a halogen when reacting with: A) Hydrochloric acid B) Sodium hydroxide C) Water D) Sodium chloride 69 / 78 69. In alkyl halides (haloalkanes), halogen atoms are attached to which type of carbon atom? A) sp4 hybridized B) sp2 hybridized C) sp hybridized D) sp3 hybridized 70 / 78 70. Which of the following is the correct IUPAC name for CH3CH2CH2BrCH3​CH2​CH2​Br? A) 1-Bromopropane B) n-Propyl bromide C) Bromopropane D) 1-Bromobutane 71 / 78 71. A monohaloalkane is characterized by: A) A single ring structure with one halogen B) One halogen atom attached to an aliphatic carbon chain C) Multiple halogen atoms attached to an aromatic ring D) One halogen atom attached to each carbon in the chain 72 / 78 72. Haloalkanes and haloarenes can be classified based on the: A) Physical state at room temperature B) Type of hybridization C) Number of halogen atoms D) Number of carbon atoms 73 / 78 73. If a halogen is bonded to an sp3-hybridized carbon that is connected to one other carbon atom, and that carbon is directly attached to an aromatic ring, the halide is: A) A secondary (2°) benzylic halide B) A primary (1°) benzylic halide C) A tertiary (3°) benzylic halide D) A primary (1°) allylic halide 74 / 78 74. The classification of mono-, di-, or polyhalogen compounds depends on A) The number of oxygen atoms in the compound B) The number of nitrogen atoms in the compound C) The number of carbon atoms in the compound D) The number of halogen atoms in the compound 75 / 78 75. Tertiary (3°) alkyl halides are those in which the halogen atom is attached to a carbon atom that is connected to: A) One other carbon atom B) Three other carbon atoms C) Two other carbon atoms D) No other carbon atoms 76 / 78 76. Which acid is used in the dehydration of alcohols to yield alkyl halides? A) Acetic acid B) Sulfuric acid C) Hydrochloric acid D) Phosphoric acid 77 / 78 77. When propane reacts with hydrogen chloride, the major product is: A) 2-Chloropropane B) 2-Chloropropane C) 2,3-Dichloropropane D) 1-Chloropropane 78 / 78 78. If a compound has a halogen atom bonded to a carbon atom that is part of a carbon-carbon double bond, it is classified as: A) A benzylic halide B) A vinylic halide C) An aryl halide D) An allylic halide Your score is LinkedIn Facebook Twitter VKontakte 0%