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.

Topics

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