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Saturday, 31 October

JEE Main · Chemistry · Amines

Sandmeyer Reaction

JEE Main asked Sandmeyer Reaction 7 times in 7 of the 108 shifts Lumi analysed, in 2020, 2021, 2023 and 2024. It belongs to Diazonium Salts, in Amines (Chemistry). The longest wait between two years asking it was 2 years. In 2020, 2021 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
7
in 7 shifts
Years
4 of 8
First asked
2020
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2023 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170.17’200.07’210’220.07’230.09’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 2 in 12 shifts · 2021: 2 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 2 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20242 of 18
  • 20231 of 12
  • 20220 of 24
  • 20212 of 24
  • 20202 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Diagram based is the usual form. Skill tested: multi-step.

  • Predict product of reaction sequence
  • Reagent sequence for conversion

Difficulty

Easy 1Medium 5Hard 1

1 of the 7 questions had a numerical answer.

Every question

All 7 questions

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

  1. 6 Apr 2024, Shift 2 · Q77Identify the product (A) in the following reaction. Aniline (benzene ring with NH2\mathrm{NH_2})…MediumDiagram basedHas a figure
  2. 5 Apr 2024, Shift 1 · Q88The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is ________. [figure: five monohalobenzenes I-V…EasyNumerical valueHas a figure
  3. 15 Apr 2023, Shift 1 · Q75[figure: 4-nitrotoluene (benzene ring with CH3\mathrm{CH_3} at top and NO2\mathrm{NO_2} at bottom) ⟶⟶\longrightarrow\longrightarrow benzoic…HardDiagram basedHas a figure
  4. 26 Feb 2021, Shift 2 · Q46Match List-I with List-II. List-I | List-II (a) [figure: benzene ring with N2+Cl−\mathrm{N_2^+Cl^-}] →Cu2Cl2\xrightarrow{\mathrm{Cu_2Cl_2}}…MediumMatch the listHas a figure
  5. 24 Feb 2021, Shift 2 · Q47What is the correct sequence of reagents used for converting nitrobenzene into mm-dibromobenzene ? [Scheme: nitrobenzene →\rightarrow…MediumDiagram basedHas a figure
  6. 4 Sep 2020, Shift 2 · Q42In the following reaction sequence, [C] is : [figure: ring drawn as a hexagon with a circle inside, NH2\mathrm{NH_2} at the top and…MediumDiagram basedHas a figure
  7. 9 Jan 2020, Shift 1 · Q42The major product Z obtained in the following reaction scheme is : (drawn starting material)…MediumDiagram basedHas a figure

Shifts: 9 Jan 2020, Shift 1, 4 Sep 2020, Shift 2, 24 Feb 2021, Shift 2, 26 Feb 2021, Shift 2, 15 Apr 2023, Shift 1, 5 Apr 2024, Shift 1, 6 Apr 2024, Shift 2.

Same topic

Other ideas in Diazonium Salts

Diazonium Salts has 16 ideas JEE Main has asked; 8 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas