JEE Chemistry

Alkenes (Electrophilic Addition, Polymerisation): JEE Questions & Solutions

19 previous-year JEE Chemistry questions on Alkenes (Electrophilic Addition, Polymerisation), each with a worked step-by-step solution.

Intermediate

Previous-year questions

  1. 01The cycloalkene (X) on bromination consumes one mole of bromine per mole of (X) and gives the product (Y) in which C: Br ratio is 3:1. The…NVAMediumJEE 2026
  2. 02Arrange the following alkenes in the decreasing order of stability: Choose the correct answer from the options given below:MCQEasyJEE 2026
  3. 03Consider the reaction: Ph-CH=CH₂ → [ HBr](PhCOO)₂ Product Which of the following statements are correct? [A.] The reaction proceeds through…MCQMediumJEE 2026
  4. 04Match List-I with List-II. List-I Isomers of C₁₀H₁₄ List-II Ozonolysis product (A) Cyclohexene derivative (I) Aldehyde product (B)…MCQMediumJEE 2025
  5. 05Following are the four molecules P, Q, R and S. Which one among the four molecules will react with H-Br(aq) at the fastest rate? Here P and…MCQMediumJEE 2025
  6. 06Total number of sigma (σ) and pi (π) bonds respectively present in hex-1-en-4-yne are:MCQEasyJEE 2025
  7. 07Which compound would give 3-methyl-6-oxoheptanal upon ozonolysis ?MCQMediumJEE 2025
  8. 08Given below are two statements: Statement I: Ozonolysis followed by treatment with Zn, H₂O of cis-2-butene gives ethanal. Statement II: The…MCQMediumJEE 2025
  9. 09The reactions which cannot be applied to prepare an alkene by elimination, are Choose the correct answer from the options given below:MCQMediumJEE 2025
  10. 10The number of optically active products obtained from the complete ozonolysis of the given compound is:MCQMediumJEE 2025
  11. 11Cyclohexene is a type of an organic compound:MCQEasyJEE 2024
  12. 123-Methylhex-2-ene on reaction with HBr in presence of peroxide forms an addition product (A). The number of possible stereoisomers for 'A'…NVAMediumJEE 2024
  13. 13Which of the following reaction is correct?MCQEasyJEE 2024
  14. 1417 mg of a hydrocarbon (Molecular Formula: C₁₀H₁₆) takes up 8.40 mL of H₂ gas measured at 0^° C and 760 mmHg. Ozonolysis of the hydrocarbon…NVAEasyJEE 2023
  15. 15Choose the correct set of reagents for the following conversion trans (Ph-CH=CH-CH₃) → cis (Ph-CH=CH-CH₃)MCQMediumJEE 2023
  16. 16A hydrocarbon ‘X’ with formula C₆H₈ uses two moles of H₂ on catalytic hydrogenation of its one mole. On ozonolysis, ‘X’ yields two moles of…MCQMediumJEE 2023
  17. 17'X' is:MCQMediumJEE 2023
  18. 18Molar mass of the hydrocarbon (X), which on ozonolysis consumes one mole of O₃ per mole of (X) and gives one mole each of ethanal and…NVAEasyJEE 2023
  19. 19View questionMCQEasyJEE 2023

Frequently asked questions

Our bank has 19 previous-year JEE Chemistry questions tagged to Alkenes (Electrophilic Addition, Polymerisation), drawn from JEE papers between 2023 and 2026, including 3 from 2026 alone. Each comes with a full step-by-step solution.

Alkenes (Electrophilic Addition, Polymerisation) is rated Intermediate overall for JEE Chemistry. The PYQs on this page break down as 12 medium, 7 easy.

Of the 19 previous-year questions on Alkenes (Electrophilic Addition, Polymerisation), 15 are multiple-choice (MCQ) and 4 are numerical-value (NVA) questions.

Based on recent paper analysis, Alkenes (Electrophilic Addition, Polymerisation) is worth about 1 mark in JEE Main. It sits in Hydrocarbons, a Class 11 Chemistry chapter.

More Hydrocarbons topics

Electrophilic Substitution in Benzene24Alkynes (Acidic Nature, Reactions)10Aromatic Compounds & Benzene9Alkanes (Properties, Halogenation)3

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