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Friday, 9 October

JEE Main Chemistry · Alcohols, Phenols and Ethers

Organic Acidity and Basicity in JEE Main

Organic Acidity and Basicity (Chemistry, Alcohols, Phenols and Ethers) came 8 times in 8 of the 42 JEE Main shifts Lumi analysed, across 6 distinct ideas. 6 of them came in 2024–26; it was last asked in 2026.

Questions
8
in 8 shifts
Ideas asked
6
1 asked more than once
Numerical answer
0
0% of its questions
Pattern
Asked most years
last asked 2026
Questions each year
0240’170’201’211’220’231’243’252’26

In the shifts Lumi analysed for each year.

Difficulty and format
Easy 2Medium 6Hard 0

Format

  • Diagram based3 Q
  • Single correct2 Q
  • Other1 Q
  • Match the list1 Q
  • Assertion–reason1 Q
Ideas inside the topic
6 ideas
Where it sits

Part of Alcohols, Phenols and Ethers, which had 34 questions in all. Organic Acidity and Basicity accounts for 24% of them. In Lumi's JEE taxonomy it belongs to Organic Chemistry.

Some questions sit in other chapters too: Aldehydes, Ketones and Carboxylic Acids, Amines, Organic Chemistry: Some Basic Principles and Techniques.

Every question

All 8 Organic Acidity and Basicity questions

Newest first, each with its options and official answer.

  1. 4 Apr 2026, Shift 1 · Q66Amongst the following, the total number of compounds soluble in aqueous NaOH at room temperature is:MediumDiagram basedHas a figure
  2. 4 Apr 2026, Shift 2 · Q66The descending order of acidity among the following compounds is: A. phenol B. 4-nitrophenol (O2N\mathrm{O_2N} para to OH on the benzene…MediumOtherHas a figure
  3. 3 Apr 2025, Shift 1 · Q67The least acidic compound, among the following is: (A) [structure: 3-ethoxyphenol, EtO and OH meta on a benzene ring] (B) [structure:…MediumDiagram basedHas a figure
  4. 7 Apr 2025, Shift 1 · Q68Which of the following compounds is least likely to give effervescence of CO2\mathrm{CO_2} in presence of aq. NaHCO3\mathrm{NaHCO_3} ?EasyDiagram basedHas a figure
  5. 8 Apr 2025, Shift 2 · Q61Match the LIST-I with LIST-II LIST-I (Reagent) | LIST-II (Functional Group detected) A. Sodium bicarbonate solution | I. double bond/…MediumMatch the list
  6. 31 Jan 2024, Shift 1 · Q77Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: pKa\mathrm{pK_a} value…EasyAssertion–reason
  7. 28 Jul 2022, Shift 1 · Q74Among the following marked proton of which compound shows lowest pKa\mathrm{pK_a} value ?MediumSingle correctHas a figure
  8. 25 Jul 2021, Shift 1 · Q50Which one of the following compounds will liberate CO2\mathrm{CO_2}, when treated with NaHCO3\mathrm{NaHCO_3} ?MediumSingle correct