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Saturday, 31 October

JEE Main · Chemistry · Haloalkanes and Haloarenes

Finkelstein Reaction

JEE Main asked Finkelstein Reaction 4 times in 4 of the 108 shifts Lumi analysed, in 2022, 2023, 2025 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
4
in 4 shifts
Years
4 of 8
First asked
2022
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2022, 2023, 2025 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170’200’210.03’220.07’230’240.13’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 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.

  • 20261 of 9
  • 20251 of 8
  • 20240 of 18
  • 20231 of 12
  • 20221 of 24
  • 20210 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Match the list is the usual form. Skill tested: recall.

  • Match list on named reactions
  • Match list on name reactions

Difficulty

Easy 2Medium 1Hard 1

Every question was multiple choice.

Every question

All 4 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 4 Apr 2026, Shift 1 · Q65Match the LIST-I with LIST-II List-I (Name of reaction): A. Finkelstein reaction; B. Swarts reaction; C. Sandmeyer's reaction; D. Fittig…EasyMatch the list
  2. 2 Apr 2025, Shift 2 · Q67Match List - I with List - II. List - I (Reaction) (A)…EasyMatch the listHas a figure
  3. 6 Apr 2023, Shift 1 · Q75For the reaction RCH2Br+I−→AcetoneRCH2Imajor+Br−\mathrm{RCH_2Br + I^-}\xrightarrow{\text{Acetone}}\underset{\text{major}}{\mathrm{RCH_2I}}+\mathrm{Br^-} The correct…HardSingle correct
  4. 27 Jul 2022, Shift 1 · Q75[figure: benzene ring (hexagon with inner circle) with CH2OH at the top and OH at the bottom (para)] ++ HCl →Δ\xrightarrow{\Delta} A…MediumDiagram basedHas a figure

Shifts: 27 Jul 2022, Shift 1, 6 Apr 2023, Shift 1, 2 Apr 2025, Shift 2, 4 Apr 2026, Shift 1.

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.

Topic analysisChapter analysisStudy this chapterAll repeated ideas