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Saturday, 31 October

JEE Main · Chemistry · Alcohols, Phenols and Ethers

Hydroboration-Oxidation Regiochemistry

JEE Main asked Hydroboration-Oxidation Regiochemistry once in the 108 shifts Lumi analysed, on 30 Jan 2024, Shift 2. It belongs to Alcohols and Phenols, in Alcohols, Phenols and Ethers (Chemistry).

Updated 2026-10-24

Times asked
1
in 1 shift
Years
1 of 8
First asked
2024
the only year
Pattern
New since 2024
asked once so far

Questions on this idea a shift, by year

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

00.050.10’170’200’210’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20230 of 12
  • 20220 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

Diagram based is the usual form. Skill tested: application.

  • Predict product of reaction

Difficulty

Easy 0Medium 1Hard 0

The question was multiple choice.

Every question

The question

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

  1. 30 Jan 2024, Shift 2 · Q77Products A and B formed in the following set of reactions are B ←B2H6, H2O2, NaOH(aq)\xleftarrow{\mathrm{B_2H_6},\ \mathrm{H_2O_2,\ NaOH(aq)}}…MediumDiagram basedHas a figure

Shift: 30 Jan 2024, Shift 2.

Same topic

Other ideas in Alcohols and Phenols

Alcohols and Phenols has 26 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas