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Friday, 9 October

JEE Main Chemistry · Amines

Replacement by H or OH

Replacement by H or OH (Amines) was asked 4 times in 4 JEE Main shifts, 2021–2026, out of the 42 shifts Lumi analysed.

Times asked
4
in 4 shifts
Years
2021–2026
Usual format
Single correct
Multi-step
Pattern
Frequent
repeats across shifts

How it is asked

  • Identify compounds in reaction sequence
  • Predict product of reaction sequence

Difficulty

Easy 1Medium 3Hard 0

Where it sits

Chapter: Amines. Topic: Diazonium Salts, 15 questions over 9 ideas.

Other repeat ideas in this topic

Every time it came

All 4 questions

Newest first, each with its options and official answer.

  1. 2 Apr 2026, Shift 2 · Q68Identify compounds A and E in the following reaction sequence.…MediumSingle correctHas a figure
  2. 8 Apr 2023, Shift 2 · Q76The product (P) formed from the following multistep reaction is: [reaction: 4-nitrotoluene (benzene ring with NO2\mathrm{NO_2} and…MediumDiagram basedHas a figure
  3. 13 Apr 2023, Shift 2 · Q78Compound A from the following reaction sequence is: A →0−5∘CBr2, CS2\xrightarrow[0-5^\circ\mathrm{C}]{\mathrm{Br_2,\ CS_2}} B…MediumSingle correctHas a figure
  4. 3 Aug 2021, Shift 2 · Q47A. →2) Heat1) NaNO2(aq.), HCl\xrightarrow[\text{2) Heat}]{\text{1) }\mathrm{NaNO_{2(aq.)}},\ \mathrm{HCl}} B.…EasySingle correctHas a figure