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