11 year papers

Solutions JEE Advanced PYQ Chapter Wise (2016–2026)

Solutions JEE Advanced PYQs: all 26 questions from 22 official papers (2016–2026), by concept with official answers. Asked in 11 of 11 years.

Updated2 min read
Full name
Joint Entrance Examination Advanced
Conducted by
IIT (rotating)
Frequency
Once a year
Sections
Paper 1 · Paper 2
Official site
jeeadv.ac.in ↗

Explore: All JEE Advanced chapters · JEE Advanced Chemistry PYQs · JEE Advanced hub · Syllabus & pattern · JEE Advanced 2026

Answer first

Solutions PYQs (previous year questions) for JEE Advanced: Solutions (Chemistry) had 26 questions across the 22 official JEE Advanced papers we tagged (2016–2026), and appeared in 14 of them. Asked in 11 of 11 years. The concepts asked in the most papers: Colligative Properties, Surface Chemistry, Raoult’s Law.

Year-wise question count

Asked in 11 of 11 years, with 2 papers each year.

Most-asked concepts

Sorted by the number of papers a concept appeared in.

ConceptQuestionsPapersYears
Colligative Properties762024, 2022, 2021, 2019, 2018, 2017
Raoult's Law332018, 2017, 2016
Surface Chemistry332019, 2017, 2016
Raoult Law322026, 2020
Adsorption222024, 2022
Adsorption Isotherm222026, 2025
Colloids222023, 2021
Osmotic Pressure222025, 2023
Concentration Terms112016
Elevation of Boiling Point112026

How to practise Solutions PYQs

  1. Start with the concepts at the top of the table. They have come back the most.
  2. Solve one year’s Solutions questions from the official PDF against the clock, then check the answer listed below.
  3. Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
  4. Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.

Questions by year

Each line gives the question number and paper, type, concept, our one-line summary and the official answer, with a link to the official PDF.

JEE Advanced2026

  • Q.11 (Paper 2) · Numerical · Adsorption Isotherm: Freundlich constant for acetic acid adsorbed on charcoal (official answer: 1.45–1.52) PDF
  • Q.12 (Paper 2) · Numerical · Elevation of Boiling Point: Percent dissociation of a solute from boiling point elevation (official answer: 31.60–33.33) PDF
  • Q.15 (Paper 2) · Numerical · Raoult Law: Ratio of vapour and liquid molar volumes of pure B (official answer: 1991–2053) PDF
  • Q.16 (Paper 2) · Numerical · Raoult Law: Mole fraction of B in vapour above an ideal solution (official answer: 0.16) PDF

JEE Advanced2025

  • Q.11 (Paper 2) · Numerical · Adsorption Isotherm: Adsorbed phenol from Freundlich isotherm data (official answer: 15.5–16.5) PDF
  • Q.13 (Paper 2) · Numerical · Osmotic Pressure: Molar mass of a macromolecule from osmotic height (official answer: 2.4–2.55) PDF

JEE Advanced2024

  • Q.8 (Paper 2) · Integer · Adsorption: Monolayer adsorption of acetic acid on charcoal from titration (official answer: 2500) PDF
  • Q.9 (Paper 2) · Integer · Colligative Properties: Ratio from colligative data of two non-volatile solutes (official answer: 150) PDF

JEE Advanced2023

  • Q.2 (Paper 2) · MCQ · Colloids: Statements on lyophobic colloids, emulsions and micelles (official answer: A) PDF
  • Q.12 (Paper 2) · Integer · Osmotic Pressure: Osmotic pressure after mixing two urea solutions (official answer: 682) PDF

JEE Advanced2022

  • Q.10 (Paper 1) · MSQ · Adsorption: Statements on physisorption and chemisorption (official answer: A, D) PDF
  • Q.2 (Paper 2) · Integer · Colligative Properties: Ions per formula unit from relative lowering of vapour pressure (official answer: 5) PDF

JEE Advanced2021

  • Q.9 (Paper 1) · Numerical · Colligative Properties: Boiling point of a silver nitrate solution PDF
  • Q.10 (Paper 1) · Numerical · Colligative Properties: Boiling point difference after mixing with BaCl2 solution PDF
  • Q.13 (Paper 1) · MSQ · Colloids: Statements on colloids: peptization, freezing, micelles, Tyndall PDF

JEE Advanced2020

  • Q.14 (Paper 2) · Numerical · Raoult Law: Vapour pressure of pure liquid from two ideal solution data PDF

JEE Advanced2019

  • Q.3 (Paper 1) · MCQ · Surface Chemistry: Molar conductivity plot showing micelle formation of sodium stearate (official answer: C) PDF
  • Q.16 (Paper 1) · Numerical · Colligative Properties: Freezing point depression from vapour pressure lowering (official answer: 0.97–1.06) PDF

JEE Advanced2018

  • Q.12 (Paper 1) · Numerical · Raoult's Law: Mole fraction ratio in an ideal solution from vapour pressure PDF
  • Q.14 (Paper 1) · Numerical · Colligative Properties: Degree of dimerization of a solute from boiling point elevation PDF

JEE Advanced2017

  • Q.20 (Paper 1) · MSQ · Raoult's Law: Vapour pressure plot of a non-ideal binary liquid mixture (official answer: B, D) PDF
  • Q.19 (Paper 2) · MCQ · Colligative Properties: Freezing point depression plot for ethanol in water (official answer: C) PDF
  • Q.26 (Paper 2) · MSQ · Surface Chemistry: Statements on adsorption and colloids (official answer: A, B) PDF

JEE Advanced2016

  • Q.32 (Paper 1) · Integer · Concentration Terms: Molar mass ratio when molarity equals molality (official answer: 9) PDF
  • Q.20 (Paper 2) · MCQ · Surface Chemistry: Assign surface tension versus concentration plots to solutes (official answer: D) PDF
  • Q.26 (Paper 2) · MSQ · Raoult's Law: Mixtures showing positive deviation from Raoult's law (official answer: A, B) PDF

Solutions in other exams

The same chapter in other official papers we tagged: JEE Main (13 questions), NEET (3 questions).

Other Chemistry chapters

FAQ

How many Solutions questions come in JEE Advanced?

In the official papers we tagged: 4 in 2026, 2 in 2025, 2 in 2024, 2 in 2023, 2 in 2022, 3 in 2021, 1 in 2020, 2 in 2019, 2 in 2018, 3 in 2017 and 3 in 2016 (2 papers each year). That is 26 questions in all, about 7% of Chemistry.

Which Solutions topics repeat in JEE Advanced?

Asked in the most papers: Colligative Properties, Surface Chemistry, Raoult’s Law. The concept table lists every one with its count.

Are these official JEE Advanced questions?

Yes. Every question is from an official JEE Advanced paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.