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Chemistry - General Organic Chemistry

Practise 67 WBJEE previous year questions on General Organic Chemistry, compiled from papers spanning 2009 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty WBJEE tests.

General Organic Chemistry has been asked in 17 of the 18 years of WBJEE papers analysed (2009–2026), with 67 questions in all. 42% of them were easy, 46% moderate and 12% tough. Most of its questions came from 2014, with 10 questions that year. In the last three years (2024–2026) it had 7 questions across 3 papers, about 2.3 per paper.

The chapter's 9 topics are not weighted equally: Isomerism of Organic Compounds (27 questions, 40%), Conjugation and Aromaticity (11 questions, 16%), and IUPAC Nomenclature (8 questions, 12%) have been asked the most. Isomerism of Organic Compounds has also led over the last five years, with 8 questions. Isomerism of Organic Compounds has produced the most tough questions (5).

  1. 1How many isomers can a compound with molecular formula have?2026Isomerism of Organic Compounds
  2. 2Rank the following anions in order of decreasing nucleophilicity in a polar protic solvent (most least nucleophilic)2026Attacking reagents
  3. 3The IUPAC name of is2026IUPAC Nomenclature
  4. 4Kjeldahl's method cannot be used for the estimation of nitrogen in which compound?2025Quantitative analysis of organic compounds
  5. 5The compound(s) showing optical activity is/are2025Isomerism of Organic Compounds
  6. 6The compound that does not give positive test for nitrogen in Lassaigne's test is2024Qualitative analysis of organic compounds
  7. 7Which of the following represent(s) the enantiomer of ?2024Isomerism of Organic Compounds
  8. 8The correct order of acidity of above compounds is2023Electron displacement effects
  9. 9Select the molecule in which all the atoms may lie on a single plane is2023Isomerism of Organic Compounds
  10. 10The IUPAC name of is :2023IUPAC Nomenclature
  11. 11The correct stability order of the following carbocations is \( { {I}}{ {H}_2 { }{ {C}}- {CH}= {CH}- {CH}_3}\) \( { {II}}{ { }{ {C}} {H}_2- 2023Electron displacement effects
  12. 12The relationship between the pair of compounds shown above are respectively,2023Isomerism of Organic Compounds
  13. 13The correct relationship between molecules I and II is2022Isomerism of Organic Compounds
  14. 14The correct order of relative stability for the given free radicals is2022Reaction Intermediates
  15. 15The enol form in which ethyle-3-oxobutanoate exists is2022Isomerism of Organic Compounds
  16. 16The correct order of relative stability of the given conformers of -butane is2022Isomerism of Organic Compounds
  17. 17The exact order of acidity of the compounds p-nitrophenol, acetic acid, acetylene and ethanol is2021Conjugation and Aromaticity
  18. 18The relationship between the pair of compounds shown above are respectively2021Isomerism of Organic Compounds
  19. 19The product (s) in the following sequence of reactions will be Product (s)2021Isomerism of Organic Compounds
  20. 20For the following carbocations the correct order of stability is2020Reaction Intermediates
  21. 21Which of the following compounds is asymmetric?2020Isomerism of Organic Compounds
  22. 22The indicated atom is not a nucleophilic site in2019Attacking reagents
  23. 23The molecule/molecules that has/have delocalised lone pair(s) of electrons is/are2019Conjugation and Aromaticity
  24. 24The conformations of -butane, commonly known as eclipsed, gauche and anti-conformations can be interconverted by2019Isomerism of Organic Compounds
  25. 25The total number of isomeric linear dipeptides which can be synthesised from racemic alanine is2019Isomerism of Organic Compounds
  26. 26The compound(s), capable of producing achiral compound on heating at is/are2019Isomerism of Organic Compounds
  27. 27In the IUPAC system, is named as2017IUPAC Nomenclature
  28. 28From the following compounds, choose the one which is not aromatic.2016Conjugation and Aromaticity
  29. 29Choose the correct statement(s) among the following.2016Isomerism of Organic Compounds
  30. 30In a mixture, two enantioners are found to be present in 85\% and respectively. The enantiomeric. excess (ee) is2015Isomerism of Organic Compounds
  31. 31The reaction of methyltrichloroacetate with sodium methoxide generates2015Reaction Intermediates
  32. 32In the Lassaigne's test for the detection of nitrogen in an onganic compound. the appearance of blue coloured compound is due to2015Qualitative analysis of organic compounds
  33. 33The total number of aromatic species generated in the following reactions is2015Conjugation and Aromaticity
  34. 34The IUPAC name of the following molecule is2014IUPAC Nomenclature
  35. 35The correct order of decreasing angle in the following molecule is2014Bond Cleavage
  36. 36Among the following structures the one which is not a resonating structure of others is2014Conjugation and Aromaticity
  37. 37The correct order of decreasing length of the bond as indicated by the arrow in the following structures is2014Conjugation and Aromaticity
  38. 38The correct statement regarding the following compounds is2014Isomerism of Organic Compounds
  39. 39The 4 th higher homologue of ethane is2014IUPAC Nomenclature
  40. 40When phenol is treated with some of the hydrogens get exchanged. The final product in this exchange reaction is2014Attacking reagents
  41. 41The most likely protonation site in the following molecule is2014Conjugation and Aromaticity
  42. 42The order of decreasing ease of abstraction of hydrogen atoms in the following molecule2014Conjugation and Aromaticity
  43. 43Among the following statements about the molecules and , the one(s) which correct is (are)2014Isomerism of Organic Compounds
  44. 44The IUPAC name of the compound is2013IUPAC Nomenclature
  45. 45(+)-2-chloro-2-phenylethane in toluene racemises slowly in the presence of small amount of due to the formation of2013Reaction Intermediates
  46. 46Correct pair of compounds which gives blue colouration/precipitate and white precipitate, respectively, when their Lassaigne's test is separ2013Qualitative analysis of organic compounds
  47. 47The optically active molecule is2013Isomerism of Organic Compounds
  48. 48The reaction of nitroprusside anion with sulphide ion gives purple colouration due to the formation of2013Qualitative analysis of organic compounds
  49. 49The correct order of acid strength of the following substituted phenols in water at is2013Conjugation and Aromaticity
  50. 50Amongst the following, the one which can exist in free state as a stable compound is2013Isomerism of Organic Compounds

Frequently Asked Questions

1.How many questions are available for General Organic Chemistry?

This chapter includes 67 questions compiled from WBJEE papers spanning 2009 to 2026.

2.Are these questions only from WBJEE, or from other exams too?

These are WBJEE questions specifically for the General Organic Chemistry chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is General Organic Chemistry an important chapter for WBJEE Chemistry?

General Organic Chemistry has appeared in 17 of the 18 years of WBJEE papers covered here, with 67 questions across 17 papers - about 4 per paper it appears in.

4.What is the difficulty level of General Organic Chemistry questions in WBJEE?

Of the 67 questions analysed for this chapter, 42% are easy, 46% moderate and 12% tough. 2014 had the most, with 10 questions.

5.Which topics in General Organic Chemistry should I focus on?

These topics have carried the most weightage in General Organic Chemistry:

  • Isomerism of Organic Compounds - 27 questions (40%)
  • Conjugation and Aromaticity - 11 questions (16%)
  • IUPAC Nomenclature - 8 questions (12%)
  • Isomerism of Organic Compounds has produced the most tough questions (5).
6.Is General Organic Chemistry's weightage in WBJEE going up or down?

Across all 17 papers analysed, General Organic Chemistry has averaged about 3.9 questions per paper. In the last three years (2024–2026), that average has fallen, at about 2.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.