Hydrocarbons JEE Advanced PYQ Chapter Wise (2016–2026)

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Answer first

Hydrocarbons PYQs (previous year questions) for JEE Advanced: Hydrocarbons (Chemistry) had 25 questions across the 22 official JEE Advanced papers we tagged (2016–2026), and appeared in 14 of them. Asked in 9 of 11 years. The concepts asked in the most papers: Alkynes, Alkyne Reactions, Reaction Sequences.

Year-wise question count

Asked in 9 of 11 years, with 2 papers each year.

Most-asked concepts

Sorted by the number of papers a concept appeared in.

How to practise Hydrocarbons PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year’s Hydrocarbons 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.12 (Paper 1) · Numerical · Alkynes: Maximum collinear carbons in a product from a diyne alkylation (official answer: 6) PDF

JEE Advanced2024

• Q.3 (Paper 2) · MCQ · Aromatic Hydrocarbons: Product of glucose reduction, aromatisation and photochlorination (official answer: D) PDF

JEE Advanced2022

• Q.8 (Paper 1) · Numerical · Alkyne Reactions: Mass of final product from acetylene through a multi-step sequence (official answer: 135.80–136.20) PDF
• Q.6 (Paper 2) · Integer · Alkyne Reactions: Number of isomeric tetraenes from a reduction-bromination-elimination sequence (official answer: 2) PDF
• Q.7 (Paper 2) · Integer · Reaction Sequences: Methylene groups in product of ozonolysis, Kolbe and aromatisation steps (official answer: 0) PDF

JEE Advanced2021

• Q.1 (Paper 1) · MCQ · Alkynes: Major product of alkyne alkylation and dissolving metal reduction PDF
• Q.5 (Paper 1) · Numerical · Alkynes: Mass of aromatic product R in a Mg2C3 reaction scheme with yields PDF
• Q.17 (Paper 1) · Integer · Free Radical Halogenation: Isomers from mono-bromination of 1-methylcyclohexene PDF
• Q.18 (Paper 1) · Integer · Ozonolysis: sp2 atoms in product of ozonolysis followed by oxime formation PDF
• Q.1 (Paper 2) · MSQ · Reaction Sequences: Reaction sequences giving o-xylene as the major product PDF
• Q.13 (Paper 2) · MCQ · Bond Dissociation Energy: Matching C-H bonds with their bond dissociation energies PDF
• Q.14 (Paper 2) · MCQ · Free Radical Halogenation: Enthalpy of steps in light-induced chlorination of methane PDF

JEE Advanced2020

• Q.9 (Paper 1) · MSQ · Friedel-Crafts Reaction: Products of acylation, reduction and Grignard-cyclisation sequence PDF
• Q.18 (Paper 1) · Numerical · Carbocations: Degree of unsaturation of a coloured product formed in conc. H2SO4 PDF
• Q.12 (Paper 2) · MSQ · Alkynes: Identify alkyne P and reagents from its transformations PDF

JEE Advanced2019

• Q.5 (Paper 2) · MSQ · Preparation of Alkanes: Reactions that produce propane as major product (official answer: A, C) PDF
• Q.6 (Paper 2) · MSQ · Aromatic Compounds: Reactions giving an aromatic compound as major product (official answer: A, B) PDF
• Q.13 (Paper 2) · Numerical · Alkenes and Alkynes: Hydroxyl groups in product of partial hydrogenation and KMnO4 (official answer: 6) PDF

JEE Advanced2018

• Q.5 (Paper 1) · MSQ · Aromatic Synthesis: Reactions that form 1,3,5-trimethylbenzene PDF

JEE Advanced2017

• Q.25 (Paper 1) · MSQ · Stereochemistry of Addition: Bromine addition to alkenes and stereochemical relations of products (official answer: B, D) PDF
• Q.30 (Paper 1) · Integer · Aromaticity: Count aromatic compounds among given structures (official answer: 5) PDF
• Q.36 (Paper 1) · Matching · Free Radical Substitution: Combination where reaction proceeds by radical mechanism (official answer: D) PDF
• Q.32 (Paper 2) · MSQ · Ozonolysis: Alkenes whose ozonolysis gives carbonyls with Cannizzaro or haloform behaviour (official answer: A, B) PDF

JEE Advanced2016

• Q.23 (Paper 1) · MCQ · Polymers: Product of complete hydrogenation of natural rubber (official answer: A) PDF
• Q.32 (Paper 2) · MSQ · Friedel-Crafts Alkylation: Reactions giving tert-butylbenzene as the major product (official answer: B, C, D) PDF

Hydrocarbons in other exams

The same chapter in other official papers we tagged: JEE Main (19 questions), NEET (3 questions).

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
• Purification and Characterisation of Organic Compounds PYQs
• Some Basic Principles of Organic Chemistry 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 Hydrocarbons questions come in JEE Advanced?

In the official papers we tagged: 1 in 2026, 1 in 2024, 3 in 2022, 7 in 2021, 3 in 2020, 3 in 2019, 1 in 2018, 4 in 2017 and 2 in 2016 (2 papers each year). Not asked in the other 2 years. That is 25 questions in all, about 6% of Chemistry.

Which Hydrocarbons topics repeat in JEE Advanced?

Asked in the most papers: Alkynes, Alkyne Reactions, Reaction Sequences. 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.