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.
Previous-year questions
- 01
The 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 - 02
Arrange the following alkenes in the decreasing order of stability: Choose the correct answer from the options given below:
MCQEasyJEE 2026 - 03
Consider the reaction: Ph-CH=CH₂ → [ HBr](PhCOO)₂ Product Which of the following statements are correct? [A.] The reaction proceeds through…
MCQMediumJEE 2026 - 04
Match List-I with List-II. List-I Isomers of C₁₀H₁₄ List-II Ozonolysis product (A) Cyclohexene derivative (I) Aldehyde product (B)…
MCQMediumJEE 2025 - 05
Following 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 - 06
Total number of sigma (σ) and pi (π) bonds respectively present in hex-1-en-4-yne are:
MCQEasyJEE 2025 - 07
Which compound would give 3-methyl-6-oxoheptanal upon ozonolysis ?
MCQMediumJEE 2025 - 08
Given below are two statements: Statement I: Ozonolysis followed by treatment with Zn, H₂O of cis-2-butene gives ethanal. Statement II: The…
MCQMediumJEE 2025 - 09
The reactions which cannot be applied to prepare an alkene by elimination, are Choose the correct answer from the options given below:
MCQMediumJEE 2025 - 10
The number of optically active products obtained from the complete ozonolysis of the given compound is:
MCQMediumJEE 2025 - 11
Cyclohexene is a type of an organic compound:
MCQEasyJEE 2024 - 12
3-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
Which of the following reaction is correct?
MCQEasyJEE 2024 - 14
17 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
Choose the correct set of reagents for the following conversion trans (Ph-CH=CH-CH₃) → cis (Ph-CH=CH-CH₃)
MCQMediumJEE 2023 - 16
A 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
'X' is:
MCQMediumJEE 2023 - 18
Molar 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
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MCQEasyJEE 2023
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