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