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Saturday, 31 October

JEE Main · Chemistry · Amines

Carbylamine Reaction

JEE Main asked Carbylamine Reaction 7 times in 7 of the 108 shifts Lumi analysed, in 2020, 2021, 2025 and 2026. It belongs to Amines (Chemistry). The longest wait between two years asking it was 4 years. In 2021 and 2026 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 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2025 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.150.30’170.08’200.10’210’220’230’240.13’250.22’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 3 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 in 8 shifts · 2026: 2 in 9 shifts.

Shift by shift

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

  • 20262 of 9
  • 20251 of 8
  • 20240 of 18
  • 20230 of 12
  • 20220 of 24
  • 20213 of 24
  • 20201 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: application.

  • Count isomers giving a named test
  • Match list on reagents to distinguish compounds

Difficulty

Easy 3Medium 4Hard 0

2 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. 5 Apr 2026, Shift 1 · Q66Benzyl isocyanide can be obtained from A. [figure: benzyl bromide, C6H5CH2Br\mathrm{C_6H_5CH_2Br}] →AgCN\xrightarrow{\mathrm{AgCN}} B. [figure:…MediumOtherHas a figure
  2. 2 Apr 2026, Shift 1 · Q67Match List - I with List - II. List - I (Mixture of Compounds) : A. Diethyl amine + Ethyl amine B. Acetaldehyde + Acetone C. Ethanol +…MediumMatch the list
  3. 7 Apr 2025, Shift 1 · Q69Which of the following amine (s) show (s) positive carbylamine test? A. [aniline: benzene ring bearing NH2\mathrm{NH_2}] B.…EasyOtherHas a figure
  4. 25 Feb 2021, Shift 2 · Q48Carbylamine test is used to detect the presence of primary amino group in an organic compound. Which of the following compound is formed…EasySingle correctHas a figure
  5. 4 Aug 2021, Shift 1 · Q60Number of isomeric compounds with molecular formula C4H11N\mathrm{C_4H_{11}N} that will give carbylamine test is ________.EasyNumerical value
  6. 3 Aug 2021, Shift 2 · Q60The number of isomers with molecular formula C3H9N\mathrm{C_3H_9N}, which will react with CHCl3+KOH\mathrm{CHCl_3 + KOH} is…MediumNumerical value
  7. 4 Sep 2020, Shift 1 · Q45Which of the following will react with CHCl3\mathrm{CHCl_3} + alc. KOH ?MediumSingle correct

Shifts: 4 Sep 2020, Shift 1, 25 Feb 2021, Shift 2, 3 Aug 2021, Shift 2, 4 Aug 2021, Shift 1, 7 Apr 2025, Shift 1, 2 Apr 2026, Shift 1, 5 Apr 2026, Shift 1.

Same topic

Other ideas in Amines

Amines has 26 ideas JEE Main has asked; 14 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas