JEE Chemistry

Electronic Effects (Inductive, Resonance, Hyperconjugation): JEE Questions & Solutions

30 previous-year JEE Chemistry questions on Electronic Effects (Inductive, Resonance, Hyperconjugation), each with a worked step-by-step solution.

Advanced

Previous-year questions

  1. 01From the following, the least stable structure is: (Assume standard resonance structures)MCQMediumJEE 2026
  2. 02Given below are two statements: Statement I: ( CH₃)₃ C⁺ is more stable than CH₃⁺ as nine hyperconjugation interactions are possible in (…MCQEasyJEE 2026
  3. 03Arrange the following carbanions in the decreasing order of stability: I. p-Br-C₆H₄-CH₂⁻ II. C₆H₅-CH₂⁻ III. p-CH₃O-C₆H₄-CH₂⁻ IV.…MCQEasyJEE 2026
  4. 04Find out the statements which are not true. A. Resonating structures with more covalent bonds and less charge separation are more stable.…MCQEasyJEE 2026
  5. 05The correct order of stability for the following carbanions is: CH₂=CH⁻, CH₃-CH₂⁻, CH≡ C⁻MCQEasyJEE 2026
  6. 06The cyclic cations having the same number of hyperconjugation are:MCQEasyJEE 2026
  7. 07The correct order of acidic strength of the major products formed in the given reactions is:MCQMediumJEE 2026
  8. 08The most stable carbocation from the following is:MCQEasyJEE 2025
  9. 09Which one of the carbocations from the following is most stable?MCQMediumJEE 2025
  10. 10The correct order of stability of following carbocations is:MCQMediumJEE 2025
  11. 11Consider the following compound (X): The most stable and least stable carbon radicals, respectively, produced by homolytic cleavage of…MCQMediumJEE 2025
  12. 12Given below are two statements: Statement I: Hyperconjugation is not a permanent effect. Statement II: In general, greater the number of…MCQEasyJEE 2025
  13. 13Given below are two statements. Statement I: The dipole moment of CH₃-CH=CH-CH=O (carbons numbered 4,3,2,1 from the methyl end) is greater…MCQMediumJEE 2025
  14. 14In which pairs, the first ion is more stable than the second?MCQMediumJEE 2025
  15. 15Which of the following has highly acidic hydrogen?MCQMediumJEE 2024
  16. 16The order of relative stability of the contributing structures shown below is: (I) CH₂=CH-C H=O    (II) C ⊕H₂-CH=CH-O ⊖…MCQEasyJEE 2024
  17. 17The ascending acidity order of the following (marked) H atoms is: A. HC ≡ C - H B. H₂C = CH - H C. (H₃C)₃C - H D. H₃C - CH₂ - HMCQEasyJEE 2024
  18. 18The correct stability order of carbocations is:MCQEasyJEE 2024
  19. 19The correct stability order of the following resonance structures of CH₃CH=CHCHO is:MCQEasyJEE 2024
  20. 20Which will undergo deprotonation most readily in basic medium?MCQEasyJEE 2023
  21. 21What is the correct order of acidity of the protons marked A-D in the given compounds?MCQMediumJEE 2023
  22. 22The most stable carbocation for the following is:MCQEasyJEE 2023
  23. 23The correct order of pKₐ values for the following compounds is:MCQEasyJEE 2023
  24. 24Resonance in carbonate ion (CO₃²⁻) is:MCQEasyJEE 2023
  25. 25The strongest acid from the following is:MCQEasyJEE 2023
  26. 26The decreasing order of hydride affinity for following carbonations is: Choose the correct answer from the options given below:MCQMediumJEE 2023
  27. 27A bicyclic alcohol — a cis-fused decalin (two fused cyclohexane rings) bearing a methyl group at one ring-fusion carbon and an OH group on…MCQMediumJEE 2023
  28. 28Correct statements for the given reaction are: A. Compound 'B' is aromatic B. The completion of the above reaction is very slow C. 'A'…MCQMediumJEE 2023
  29. 29Given below are two statements: Statement I: Tropolone is an aromatic compound and has 8π electrons. Statement II: The bond angle of C = O…MCQMediumJEE 2023
  30. 30Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The order of acidic…MCQMediumJEE 2023

Frequently asked questions

Our bank has 30 previous-year JEE Chemistry questions tagged to Electronic Effects (Inductive, Resonance, Hyperconjugation), drawn from JEE papers between 2023 and 2026, including 7 from 2026 alone. Each comes with a full step-by-step solution.

Electronic Effects (Inductive, Resonance, Hyperconjugation) is rated Advanced overall for JEE Chemistry. The PYQs on this page break down as 16 easy, 14 medium.

All 30 previous-year Electronic Effects (Inductive, Resonance, Hyperconjugation) questions in our bank are multiple-choice (MCQ) questions.

Based on recent paper analysis, Electronic Effects (Inductive, Resonance, Hyperconjugation) is worth about 2 marks in JEE Main. It sits in Basic Principles of Organic Chemistry, a Class 11 Chemistry chapter.

More Basic Principles of Organic Chemistry topics

Master Electronic Effects (Inductive, Resonance, Hyperconjugation) with AI-adaptive practice.

Practice unlimited Electronic Effects (Inductive, Resonance, Hyperconjugation) questions, track your mastery, and get every step explained by an AI tutor.