Purification of Organic Compounds JEE Advanced PYQs

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Answer first

Purification and Characterisation of Organic Compounds PYQs (previous year questions) for JEE Advanced: Purification and Characterisation of Organic Compounds (Chemistry) had 5 questions across the 22 official JEE Advanced papers we tagged (2016–2026), and appeared in 3 of them. Asked in 3 of 11 years. The concepts asked in the most papers: Carius Method, Kjeldahl Method, Dumas Method.

Year-wise question count

Asked in 3 of 11 years, with 2 papers each year.

Most-asked concepts

Sorted by the number of papers a concept appeared in.

How to practise Purification and Characterisation of Organic Compounds PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year’s Purification and Characterisation of Organic Compounds 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.17 (Paper 2) · Numerical · Kjeldahl Method: Acid volume to neutralise ammonia from L by Kjeldahl method (official answer: 10) PDF
• Q.18 (Paper 2) · Numerical · Carius Method: Mass of barium sulphate from M by Carius method (official answer: 2.33) PDF

JEE Advanced2025

• Q.12 (Paper 1) · Numerical · Dumas Method: Nitrogen evolved by Dumas method from a Nylon 6,6 monomer (official answer: 280) PDF

JEE Advanced2022

• Q.6 (Paper 1) · Numerical · Carius Method: Mass of AgBr from Carius estimation of a brominated acid (official answer: 1.49–1.51) PDF
• Q.18 (Paper 1) · Matching · Detection of Elements: Match organic compounds with qualitative test observations (official answer: D) PDF

Purification and Characterisation of Organic Compounds in other exams

The same chapter in other official papers we tagged: JEE Main (10 questions), NEET (1 question).

Other Chemistry chapters

• Some Basic Concepts in Chemistry PYQs
• Atomic Structure PYQs
• Chemical Bonding and Molecular Structure PYQs
• Chemical Thermodynamics PYQs
• Solutions PYQs
• Equilibrium PYQs
• Redox Reactions and Electrochemistry PYQs
• Chemical Kinetics PYQs
• Classification of Elements and Periodicity PYQs
• p-Block Elements PYQs
• d- and f-Block Elements PYQs
• Coordination Compounds PYQs
• Some Basic Principles of Organic Chemistry PYQs
• Hydrocarbons PYQs
• Organic Compounds Containing Halogens PYQs
• Organic Compounds Containing Oxygen PYQs
• Organic Compounds Containing Nitrogen PYQs
• Biomolecules PYQs
• Principles Related to Practical Chemistry PYQs

FAQ

How many Purification and Characterisation of Organic Compounds questions come in JEE Advanced?

In the official papers we tagged: 2 in 2026, 1 in 2025 and 2 in 2022 (2 papers each year). Not asked in the other 8 years. That is 5 questions in all, about 1% of Chemistry.

Which Purification and Characterisation of Organic Compounds topics repeat in JEE Advanced?

Asked in the most papers: Carius Method, Kjeldahl Method, Dumas Method. 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.