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