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Saturday, 31 October

JEE Main · Chemistry · Amines

Reduction of Nitriles vs Isocyanides

JEE Main asked Reduction of Nitriles vs Isocyanides 3 times in 3 of the 108 shifts Lumi analysed, in 2020 and 2022. It belongs to Amines (Chemistry). The longest wait between two years asking it was 2 years. In 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
2 of 8
First asked
2020
last in 2022
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020 and 2022. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170.08’200’210.07’220’230’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 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
  • 20240 of 18
  • 20230 of 12
  • 20222 of 24
  • 20210 of 24
  • 20201 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: application.

  • Predict product of reaction sequence
  • Reagent sequence for conversion

Difficulty

Easy 1Medium 1Hard 1

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.

  1. 24 Jun 2022, Shift 2 · Q77The conversion of propan-1-ol to n-butylamine involves the sequential addition of reagents. The correct sequential order of reagents isMediumSingle correct
  2. 24 Jun 2022, Shift 1 · Q76[figure: 4-methoxybenzyl bromide, i.e. 4-CH3O\mathrm{CH_3O}-C6H4-CH2Br\mathrm{CH_2Br}] (i) NaCN (ii) OH−\mathrm{OH^-} (iii) Cyclohexanone (iv)…HardSingle correctHas a figure
  3. 5 Sep 2020, Shift 1 · Q29The most appropriate reagent for conversion of C2H5CN\mathrm{C_2H_5CN} into CH3CH2CH2NH2\mathrm{CH_3CH_2CH_2NH_2} is :EasySingle correct

Shifts: 5 Sep 2020, Shift 1, 24 Jun 2022, Shift 2, 24 Jun 2022, 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