JEE Main · Chemistry · Haloalkanes and Haloarenes
Solvent Effects on Substitution
JEE Main asked Solvent Effects on Substitution 3 times in 3 of the 108 shifts Lumi analysed, in 2023, 2024 and 2026. It belongs to SN1 and SN2 Mechanisms, in Haloalkanes and Haloarenes (Chemistry). The longest wait between two years asking it was 2 years.
Updated 2026-10-24
- Times asked
- 3
- in 3 shifts
- Years
- 3 of 8
- First asked
- 2023
- last in 2026
- Pattern
- Frequent
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2023, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 1 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Single correct is the usual form. Skill tested: conceptual.
- Count correct statements on alkyl halides
- Statement i/ii on sn1 and sn2 conditions
Difficulty
Every question was multiple choice.
Every question
All 3 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 2 Apr 2026, Shift 2 · Q65Correct statements regarding alkyl halides (R - X) among the following are: A. Alcohol being less polar solvent as compared to water,…MediumSingle correct
- 30 Jan 2024, Shift 2 · Q75Given below are two statements: Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not…MediumTwo statements
- 13 Apr 2023, Shift 1 · Q752-Methyl propyl bromide reacts with and gives 'A' whereas on reaction with it gives 'B'. The…MediumSingle correct
Shifts: 13 Apr 2023, Shift 1, 30 Jan 2024, Shift 2, 2 Apr 2026, Shift 2.
Same topic
Other ideas in SN1 and SN2 Mechanisms
SN1 and SN2 Mechanisms has 19 ideas JEE Main has asked; 12 of them came up in more than one question. The 12 most asked are below.
- Allylic and Benzylic Reactivity in SN17× · 2026
- Finkelstein Reaction4× · 2026
- Ambident Nucleophiles (Cyanide/Nitrite)4× · 2024
- SN2 Transition State4× · 2024
- Carbocation Rearrangements in SN13× · 2026
- Allylic and Benzylic Reactivity in SN23× · 2024
- Substrate Steric Effects3× · 2024
- Temperature Effects on Substitution vs Elimination3× · 2024
- Ambident Nucleophiles (Cyanide vs Isocyanide)2× · 2024
- Reactivity of Allylic and Benzylic Halides2× · 2024
- SN1 Carbocation Intermediate2× · 2023
- Inertness of Vinylic and Aryl Halidesonce · 2024