HALOALKANES AND HALOARENES 0% 0 Halogens and Haloarenes 1 / 78 1. When preparing alkyl iodides from alcohols, what is typically used? A) Red phosphorus and iodine B) Concentrated sulfuric acid C) Concentrated hydrochloric acid D) Red phosphorus and bromine 2 / 78 2. Which type of carbon-halogen bond is typically formed in alkyl halides or haloalkanes? A) sp C-X bond B) sp3 C-X bond C) sp2 C-X bond D) sp3d2 C-X bond 3 / 78 3. What type of hybridized carbon atoms are present in the structure of haloarenes? A) sp hybridized B) sp3 hybridized C) sp4 hybridized D) sp2 hybridized 4 / 78 4. In the provided example, how many possible monochloro structural isomers can be formed from the free radical chlorination of CH3CH2CH2CH3? A) Four B) Three C) One D) Two 5 / 78 5. Which acid is used in the dehydration of alcohols to yield alkyl halides? A) Hydrochloric acid B) Acetic acid C) Phosphoric acid D) Sulfuric acid 6 / 78 6. Which of the following is the correct IUPAC name for CH3CH2CH2BrCH3CH2CH2Br? A) 1-Bromopropane B) 1-Bromobutane C) n-Propyl bromide D) Bromopropane 7 / 78 7. 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 8 / 78 8. What is the application of halothane? A) Anesthesia during surgery B) Treatment of malaria C) Treatment of typhoid fever D) Blood substitute in surgery 9 / 78 9. 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 10 / 78 10. 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 is an isomer of propene. D) The compound has two chlorine atoms. 11 / 78 11. 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 12 / 78 12. In allylic halides, the halogen is attached to a carbon that is: A) Adjacent to a carbon-carbon double bond B) Adjacent to a carbon-carbon triple bond C) Not adjacent to any double bonds D) Part of a carbon-carbon double bond 13 / 78 13. The compound in structure (vi) would be named as: A) 2-Bromo-1-ene B) 3-Bromo-1-ene C) 1-Bromo-3-ene D) 1-Bromo-2-ene 14 / 78 14. Which alkyl halide bond would you expect to be the most polar? A) C-I B) C-F C) C-Cl D) C-Br 15 / 78 15. The common name for CH2=CHCl is: A) Chloroethene B) Vinyl chloride C) Allyl chloride D) Ethylene chloride 16 / 78 16. 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) No charge B) A partial negative charge C) A full negative charge D) A partial positive charge 17 / 78 17. The preparation of alkyl chlorides can be carried out by passing dry hydrogen chloride gas through: A) A solution of alcohol and concentrated hydrochloric acid B) A solution of alcohol and concentrated sulfuric acid C) A dry solution of alcohol D) An aqueous solution of alcohol 18 / 78 18. A secondary (2°) alkyl halide has the halogen atom attached to a carbon that is also connected to: A) Two other carbon atoms B) Three other carbon atoms C) One other carbon atom D) Four other carbon atoms 19 / 78 19. What deficiency disease is caused by the lack of thyroxine hormone in the body? A) Typhoid fever B) Surgery C) Malaria D) Goiter 20 / 78 20. A compound with two halogen atoms attached to different carbon atoms is called a: A) Dihaloalkane B) Tetrahaloalkane C) Monohaloalkane D) Trihaloalkane 21 / 78 21. Which synthetic halogen compound is primarily used for the treatment of malaria? A) Halothane B) Chloramphenicol C) Chloroquine D) Thyroxine 22 / 78 22. Tertiary (3°) alkyl halides are those in which the halogen atom is attached to a carbon atom that is connected to: A) Three other carbon atoms B) One other carbon atom C) No other carbon atoms D) Two other carbon atoms 23 / 78 23. 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) CHX-CH<sub>2</sub>X C) C<sub>2</sub>H<sub>3</sub>X D) CHX-CHX 24 / 78 24. In alkyl halides (haloalkanes), halogen atoms are attached to which type of carbon atom? A) sp3 hybridized B) sp hybridized C) sp4 hybridized D) sp2 hybridized 25 / 78 25. 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 type of halogen atoms C) The presence of a functional group D) The number of halogen atoms 26 / 78 26. 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 vinylic halide B) A benzylic halide C) An aryl halide D) An allylic halide 27 / 78 27. gem-dihalides refer to: A) Compounds with two halogens on the same carbon atom. B) Compounds with two halogens on opposite ends of a carbon chain. C) Compounds with two halogens on adjacent carbon atoms. D) Compounds with two different halogens on the same carbon atom. 28 / 78 28. Which of the following compounds is an example of an aryl halide (haloarene)? A) Halothane B) Thyroxine C) Chloramphenicol D) Chloroquine 29 / 78 29. What is the general term used to describe the replacement of hydrogen atoms in hydrocarbons by halogen atoms? A) Halogenation B) Halogenization C) Hydrogenization D) Hydrogenation 30 / 78 30. Allylic halides are characterized by a halogen atom bonded to: A) An sp3-hybridized carbon atom attached to an aromatic ring B) An sp3-hybridized carbon atom adjacent to a carbon-carbon double bond C) An sp2-hybridized carbon atom D) An sp-hybridized carbon atom 31 / 78 31. 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 sp3-hybridized carbon atom adjacent to an aromatic ring D) An sp-hybridized carbon atom of an aliphatic chain 32 / 78 32. Fully fluorinated compounds are considered potential substitutes for what in surgery? A) Solvents B) Blood C) Antibiotics D) Anesthesia 33 / 78 33. Free radical chlorination or bromination of alkanes tends to produce: A) A single polyhaloalkane B) A single isomeric compound C) Only dimeric compounds D) A complex mixture of isomeric mono- and polyhaloalkanes 34 / 78 34. The addition of bromine to an alkene is an important reaction because it: A) Is used to create bromine gas B) Is a substitution reaction C) Always results in a single product D) Tests for the presence of double bonds in a molecule 35 / 78 35. The term "polyhalogen" refers to compounds with: A) One halogen atom B) A halogen atom in a ring structure C) Exactly two halogen atoms D) Three or more halogen atoms 36 / 78 36. 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) Sulfur, Phosphorus, Fluorine, and Bromine D) Nitrogen, Oxygen, Fluorine, and Chlorine 37 / 78 37. Alkyl halides, also known as haloalkanes, are characterized by a halogen atom bonded to: A) A vinyl group B) An alkoxy group C) An aromatic ring D) An alkyl group 38 / 78 38. Which reagent is commonly used for converting alcohols directly into alkyl chlorides? A) SOCl₂ B) NaBr + H₂SO₄ C) PCl₅ D) ZnCl₂ 39 / 78 39. What is the correct IUPAC name for structure (iv)? A) 4-Bromopent-2-ene B) 4-Bromo-2-pentene C) 2-Bromopent-4-ene D) 2-Bromo-4-pentene 40 / 78 40. Haloalkanes and haloarenes can be classified based on the: A) Number of carbon atoms B) Physical state at room temperature C) Number of halogen atoms D) Type of hybridization 41 / 78 41. 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 42 / 78 42. For monohalogen substituted derivatives of benzene, what is true about their common and IUPAC names? A) The common name is always based on the historical name. B) They are different. C) They are the same. D) The IUPAC name is based on the alphabetical order of substituents. 43 / 78 43. 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 44 / 78 44. Vinylic halides are characterized by the halogen atom being bonded to: A) An sp-hybridized carbon atom 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 sp2-hybridized carbon atom of an aromatic ring 45 / 78 45. Which of the following carbon-halogen bonds has the highest bond enthalpy? A) C-Cl B) C-F C) C-Br D) C-I 46 / 78 46. 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 sp2-hybridized carbon atoms in a benzene ring. D) They contain halogen atoms bonded to sp-hybridized carbon atoms. 47 / 78 47. Which carbon-halogen bond is the shortest according to Table 6.2? A) Carbon-Chlorine B) Carbon-Bromine C) Carbon-Iodine D) Carbon-Fluorine 48 / 78 48. When propane reacts with hydrogen chloride, the major product is: A) 1-Chloropropane B) 2-Chloropropane C) 2,3-Dichloropropane D) 2-Chloropropane 49 / 78 49. 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 order in which the carbon atoms are counted C) The total number of carbon and halogen atoms D) The carbon atoms to which the halogens are attached 50 / 78 50. 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 51 / 78 51. 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 decreases C) It fluctuates unpredictably D) It remains the same 52 / 78 52. The general formula for alkyl halides is represented by: A) C <sub>n</sub>H<sub>n+1</sub> X B) C <sub>n</sub>H<sub>2n+1</sub> X C) C <sub>n</sub>H<sub>2n+2</sub> X D) C <sub>n</sub>H<sub>2n</sub> X 53 / 78 53. In the context of haloarenes, what does the 'X' represent in the structures shown? A) Any alkoxy group B) Any alkyl group C) Any carbonyl group D) Any halogen atom 54 / 78 54. The reaction of alcohols with thionyl chloride (SOCl₂) produces: A) Alkyl chloride, sulfur dioxide, and water B) Alkyl chloride, sulfur trioxide, and hydrogen chloride C) Alkyl chloride, phosphorus pentachloride, and water D) Alkyl chloride, sulfur dioxide, and hydrogen chloride 55 / 78 55. Structure (v) is named as which of the following in IUPAC nomenclature? A) 2-Bromo-3-methylpropene B) 3-Bromo-2-methylpropene C) 3-Bromo-1-methylpropene D) 1-Bromo-3-methylpropene 56 / 78 56. 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 57 / 78 57. What is the clinical application of chloramphenicol? A) Treatment of malaria B) Treatment of typhoid fever C) Blood substitute in surgery D) Treatment of goiter 58 / 78 58. Which of the following is the correct IUPAC name for CH3CH2CHBr2? A) 1,2-Dibromopropane B) 1,1-Dibromopropane C) 1,3-Dibromopropane D) 2,2-Dibromopropane 59 / 78 59. 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 halosubstituted hydrocarbons D) The alphabetical order of the substituents 60 / 78 60. An alkyl halide is classified as primary (1°) when the halogen is attached to: A) A carbon atom that is bonded to one other carbon atom B) A carbon atom that is bonded to two other carbon atoms C) A carbon atom that is bonded to no other carbon atoms D) A carbon atom that is bonded to three other carbon atoms 61 / 78 61. Structure (ii) represents which of the following IUPAC names? A) 1-Bromo-2-methylbutane B) 1-Bromo-3-methylbutane C) 2-Bromo-3-methylbutane D) 3-Bromo-2-methylbutane 62 / 78 62. What is the IUPAC name for the compound with the common name m-Dibromobenzene? A) 1,5-Dibromobenzene B) 1,3-Dibromobenzene C) 1,2-Dibromobenzene D) 1,4-Dibromobenzene 63 / 78 63. The IUPAC name for the compound commonly known as ethylene chloride is: A) Dichloroethylene B) 1,2-Dichloroethane C) 1,2-Dichloroethylene D) 1,1-Dichloroethane 64 / 78 64. Benzyl halides are compounds in which the halogen atom is bonded to: A) An sp3-hybridized carbon atom attached to an aromatic ring B) An sp-hybridized carbon atom C) A benzene ring directly D) A carbon atom that is part of an aliphatic ring 65 / 78 65. 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 nitrogen atoms in the compound D) The number of carbon atoms in the compound 66 / 78 66. Which statement correctly describes the difference between allylic and benzylic halides? A) Allylic halides have the halogen on an aromatic ring, while benzylic halides have the halogen on a carbon-carbon double bond. 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 a carbon adjacent to a double bond, while benzylic halides have the halogen on a carbon attached to an aromatic ring. D) There is no difference; they are both the same. 67 / 78 67. 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 single bond. B) The carbon is part of a carbon-carbon triple bond. C) The carbon is bonded to an aromatic ring. D) The carbon is part of a carbon-carbon double bond. 68 / 78 68. The IUPAC name for the compound depicted in structure (iii) is: A) 2-Bromo-3,3-dimethylpropane B) 1-Bromo-2,2-dimethylpropane C) 1-Bromo-3,3-dimethylpropane D) 2-Bromo-2-methylpropane 69 / 78 69. Which type of carbon-halogen bond is present in benzylic halides? A) sp C-X bond B) sp3d2 C-X bond C) sp3 C-X bond D) sp2 C-X bond 70 / 78 70. The prefix 'iso' in isopropyl chloride indicates: A) A straight-chain compound B) A branched-chain compound C) An isomeric compound D) A cyclic compound 71 / 78 71. 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 72 / 78 72. The compound CHCl3 is known by what IUPAC name? A) Dichloromethane B) Trichloromethane C) Tetrachloromethane D) Chloroform 73 / 78 73. What is the IUPAC name for the compound shown in structure (i)? A) 3-Bromopentane B) 2-Bromopentane C) 1-Bromopentane D) 4-Bromopentane 74 / 78 74. 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 tertiary (3°) benzylic halide B) A secondary (2°) benzylic halide C) A primary (1°) benzylic halide D) A primary (1°) allylic halide 75 / 78 75. Vic-dihalides are named based on the presence of: A) Halogens on tertiary carbon atoms. B) Two halogens on the same carbon atom. C) Two halogens on aromatic rings. D) Two halogens on two adjacent carbon atoms. 76 / 78 76. The reaction of an alkene with a hydrogen halide (HX) follows: A) The Markovnikov's rule B) The anti-addition rule C) The Anti-Markovnikov's rule D) The syn-addition rule 77 / 78 77. 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) Increase then decrease C) Decrease D) Increase 78 / 78 78. To prepare alkyl bromides from alcohols, which reagent can be used? A) Phosphorus tribromide (PBr₃) B) Hydroiodic acid (HI) C) Hydrochloric acid (HCl) D) Hydrobromic acid (HBr) Your score is LinkedIn Facebook Twitter VKontakte 0%