Haloalkanes and Haloarenes

49 topics, ranked by how often each is asked.

Practise Haloalkanes and HaloarenesBrowse all questions
  • 55 questions
  • 33 papers
  • 3.13% of Chemistry

Topics

The squares are the last ten exam years: filled means it was asked that year.

Most asked first

49 topics · 55 questions
  1. 1Elimination Reactions5.5%3 questionsPractise Elimination Reactions
  2. 2Nucleophilic substitution5.5%3 questionsPractise Nucleophilic substitution
  3. 3Mechanism of nucleophilic substitution3.6%2 questionsPractise Mechanism of nucleophilic substitution
  4. 4R and S Configuration3.6%2 questionsPractise R and S Configuration
  5. 5Nucleophilic Substitution Reactions (SN2 Mechanism)1.8%1 questionPractise Nucleophilic Substitution Reactions (SN2 Mechanism)
  6. 6SN1 Reaction Rate and Carbocation Stability1.8%1 questionPractise SN1 Reaction Rate and Carbocation Stability
  7. 7Stability of Carbocations1.8%1 questionPractise Stability of Carbocations
  8. 8Nitrile to Amide to Hofmann Bromamide Reaction Sequence1.8%1 questionPractise Nitrile to Amide to Hofmann Bromamide Reaction Sequence
  9. 9Substitution (PBr3) followed by Elimination (alc. KOH)1.8%1 questionPractise Substitution (PBr3) followed by Elimination (alc. KOH)
  10. 10Reactions of Alcohols with HX – Carbocation Rearrangement1.8%1 questionPractise Reactions of Alcohols with HX – Carbocation Rearrangement
  11. 11Classification of Haloalkanes and Haloarenes1.8%1 questionPractise Classification of Haloalkanes and Haloarenes
  12. 12Methods of Preparation of Haloarenes1.8%1 questionPractise Methods of Preparation of Haloarenes
  13. 13Stereochemical Aspects of Nucleophilic Substitution1.8%1 questionPractise Stereochemical Aspects of Nucleophilic Substitution
  14. 14Physical Properties of Haloalkanes – Bond Enthalpy1.8%1 questionPractise Physical Properties of Haloalkanes – Bond Enthalpy
  15. 15Preparation of alkyl halides (PCl5), dehydrohalogenation, and peroxide (anti-Markovnikov) addition of HBr1.8%1 questionPractise Preparation of alkyl halides (PCl5), dehydrohalogenation, and peroxide (anti-Markovnikov) addition of HBr
  16. 16Nitrile to primary amine to alcohol via reaction sequence1.8%1 questionPractise Nitrile to primary amine to alcohol via reaction sequence
  17. 17Elimination and addition reactions leading to alkynes1.8%1 questionPractise Elimination and addition reactions leading to alkynes
  18. 18Preparation of haloarenes by halogenation1.8%1 questionPractise Preparation of haloarenes by halogenation
  19. 19SN1 reaction mechanism and carbocation stability1.8%1 questionPractise SN1 reaction mechanism and carbocation stability
  20. 20Reaction of alkyl halides with cyanide - nitrile vs isonitrile formation1.8%1 questionPractise Reaction of alkyl halides with cyanide - nitrile vs isonitrile formation
  21. 21Rate of dehydrohalogenation (E2 elimination) - substrate structure effect1.8%1 questionPractise Rate of dehydrohalogenation (E2 elimination) - substrate structure effect
  22. 22Grignard reagent formation and reaction with D2O1.8%1 questionPractise Grignard reagent formation and reaction with D2O
  23. 23Directive influence of halogen in haloarenes1.8%1 questionPractise Directive influence of halogen in haloarenes
  24. 24SN2 reactivity and steric hindrance1.8%1 questionPractise SN2 reactivity and steric hindrance
  25. 25Reactivity of aryl halides towards nucleophilic substitution1.8%1 questionPractise Reactivity of aryl halides towards nucleophilic substitution
  26. 26Grignard reagents with compounds having active hydrogen1.8%1 questionPractise Grignard reagents with compounds having active hydrogen
  27. 27Nucleophilic substitution in haloarenes – benzyne mechanism1.8%1 questionPractise Nucleophilic substitution in haloarenes – benzyne mechanism
  28. 28Types of organic reactions – elimination, substitution, addition1.8%1 questionPractise Types of organic reactions – elimination, substitution, addition
  29. 29SN2 reactions – solvent effect1.8%1 questionPractise SN2 reactions – solvent effect
  30. 30Stereochemistry of SN11.8%1 questionPractise Stereochemistry of SN1
  31. 31Preparation of haloalkanes1.8%1 questionPractise Preparation of haloalkanes
  32. 32Reactions of haloalkanes1.8%1 questionPractise Reactions of haloalkanes
  33. 33Halogen exchange reactions1.8%1 questionPractise Halogen exchange reactions
  34. 34Nucleophilic substitution in haloarenes1.8%1 questionPractise Nucleophilic substitution in haloarenes
  35. 35Grignard reagents1.8%1 questionPractise Grignard reagents
  36. 36Polyhalogen compounds1.8%1 questionPractise Polyhalogen compounds
  37. 37Stereoisomerism1.8%1 questionPractise Stereoisomerism
  38. 38SN2 Mechanism1.8%1 questionPractise SN2 Mechanism
  39. 39Optical Activity1.8%1 questionPractise Optical Activity
  40. 40Nucleophilicity1.8%1 questionPractise Nucleophilicity
  41. 41Chirality1.8%1 questionPractise Chirality
  42. 42SN1 Mechanism1.8%1 questionPractise SN1 Mechanism
  43. 43Polyhalogen Compounds: Freons1.8%1 questionPractise Polyhalogen Compounds: Freons
  44. 44Nucleophilic Substitution Reactions1.8%1 questionPractise Nucleophilic Substitution Reactions
  45. 45Polyhalogen Compounds: Chloroform1.8%1 questionPractise Polyhalogen Compounds: Chloroform
  46. 46Optical Isomerism: Enantiomers and Meso Compounds1.8%1 questionPractise Optical Isomerism: Enantiomers and Meso Compounds
  47. 47Free Radical Halogenation and Stereochemistry1.8%1 questionPractise Free Radical Halogenation and Stereochemistry
  48. 48Wurtz Reaction1.8%1 questionPractise Wurtz Reaction
  49. 49Optical Isomerism1.8%1 questionPractise Optical Isomerism

Questions per paper

Asked in 14 of the last 16 papers (2017–2026).

  1. 2026: 1 question
  2. 2026 Re-NEET: 1 question
  3. 2025: 1 question
  4. 2024: 4 questions
  5. 2024 Re-NEET: 3 questions
  6. 2023: 2 questions
  7. 2023 Manipur: 3 questions
  8. 2022: 2 questions
  9. 2022 Phase 2: 2 questions
  10. 2021: 2 questions
  11. 2020: 1 question
  12. 2020 Phase-2: 1 question
  13. 2019: not asked
  14. 2019 Odisha: 1 question
  15. 2018: not asked
  16. 2017: 1 question

Concepts tested

  • allylic halide
  • benzyne-mechanism
  • C-X bond strength and reactivity
  • Cahn-Ingold-Prelog rules on Fischer projections
  • Carbocation stability
  • CFCs and ozone depletion
  • chirality, racemic mixture and enantiomers
  • CIP rules with the lowest priority group away
  • Comparing SN1 rates via carbocation stability of halide structures
  • Counting stereoisomers
  • C–X bond enthalpy order
  • dehydrohalogenation and Zaitsev's rule
  • Directive influence of halogen in haloarenes
  • Effect of substituents on aryl halides
  • Elimination and addition reactions leading to alkynes
  • Enantiomers rotate light oppositely
  • Formation of chloropicrin
  • Grignard reagent formation and reaction with D2O