JEE Advanced 2025 Chemistry Paper Exam Analysis: Exam Trends, Difficulty, and Cut-Offs

Get a comprehensive Chemistry exam analysis of the JEE Advanced 2025 exam. Learn about the JEE Advanced exam trends, JEE Advanced difficulty level of papers, JEE Advanced expected cut-offs, and insights to help you gauge your performance.

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JEE Advanced Chemistry Paper Analysis 2025
JEE Advanced Chemistry Paper Analysis 2024

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JEE Advanced Chemistry Paper Analysis 2025

The JEE Advanced 2025 Chemistry papers (Paper 1 and Paper 2) were well-balanced and conceptually rich, mixing inorganic, organic and physical chemistry with strong emphasis on reaction mechanisms, qualitative analysis, electrochemistry, equilibrium, and numerical problem solving. Both papers combined single-correct, multi-correct and numerical questions, with Paper 1 also using matching-type sets extensively in Chemistry.

Overall pattern (Chemistry)

Both papers: 16 Chemistry questions each.
Question-type balance:

Paper 1: MCQ (single-correct), MR (multiple-response), Numerical Value, MCMT (matching/list type).
Paper 2: MCQ, MR, Numerical Values (Chemistry numericals continue up to Q16; no Chemistry matching in Paper 2).

Style:

Conceptual focus on: hybridisation + bonding trends, redox and electrochemistry, acid–base and ionic equilibria, solid state/solution concepts, organic named reactions and test-based identification.
Many questions mix 2–3 ideas (e.g. mechanism + acidity, qualitative group reagents + inorganic concepts, electrochemistry + thermodynamics).
Numericals require accurate stoichiometry and formula recall rather than very heavy algebra.

PAPER – 1 (Chemistry)

Structure & Types

Total Number of Questions (Chemistry): 16 (Q1–Q4 MCQ, Q5–Q7 MR, Q8–Q12 Numerical, Q13–Q16 Matching/List).
Question Types:

MCQ (single correct): 4
MR (multiple correct): 3
Numerical Value: 5 (Q8–Q12) + 1 longer numerical-like synthesis count (Q13)
MCMT (Matching List type): 3 (Q14–Q16 plus Q13 is effectively multi-step numerical)

Overall Level:Moderate to Difficult, with several multi-concept physical and organic problems.

Approximate difficulty split (Chemistry, Paper 1)

Numbers of Easy Questions: ~4

Examples: decomposition of ammonium salts (Q1), KMnO₄–I⁻ product (Q3), P–H containing monomer identification via carbylamine/Dumas idea (Q12), basic qualitative group reagent logic in one match.

Numbers of Moderate Questions: ~8–9

Examples: UV–Vis order of Co complexes (Q2), acidity in hydrocarbons (Q4), MO/BO questions (Q5), diamagnetic f-block ions (Q6), SN2/bond strength trends in halides (Q7), electrochem time/current, weak acid pH, van der Waals Vm ratio, expansion work, qualitative matching sets.

Numbers of Difficult Questions: ~3–4

Examples: multi-step yield calculation (Q13), some matching sets combining multiple named reactions/tests (Q15, Q16), thermodynamic work-type numerical (Q11).

Most covered and important topics (Chemistry, Paper 1)

Physical Chemistry

Electrochemistry (charge passed for dichromate reduction, expansion work in electrolysis).
Ionic equilibrium and pH approximations (weak acid, water auto-ionization).
Gaseous state and van der Waals equation (Vm cubic, coefficient ratio).

Inorganic Chemistry

p‑block nitrogen chemistry (NH₄NO₂, NH₄NO₃ decomposition).
Coordination chemistry and spectrochemical series (Co complexes and λmax ordering).
f-block (La/Ce/Yb/Lu) magnetic behaviour; qualitative group analysis reagents (H₂S in HCl/NH₄OH, (NH₄)₂CO₃, NH₄OH+NH₄Cl).

Organic Chemistry

Acidity of C–H in different frameworks.
Haloalkanes reactivity and leaving groups (Finkelstein, Swarts, SN2 trends).
Polymers (Nylon-6,6 monomer and its tests), multi-step synthesis with yields, classical named reactions (Stephen, Sandmeyer, Hoffmann, Cannizzaro) and organic qualitative tests (diazotization, ninhydrin, FeCl₃, phthalein dyes).

Paper 1 Chemistry wasconcept-heavy, especially in MO/bonding, qualitative inorganic, and organic mechanism/test questions, with physical chemistry numericals at a standard JEE Advanced level.

Q No.	Type	Main Topic	Subtopic / Idea	Difficulty
1	MCQ	Inorganic – Nitrogen	Thermal decomposition of NH4NO2 and NH4NO3, products X, Y	Easy–Moderate
2	MCQ	Coordination	Spectrochemical/CFSE order → λmax order for Co complexes	Moderate
3	MCQ	Inorganic Redox	KMnO4 with I⁻ in neutral medium, product of iodide	Easy
4	MCQ	Organic – Acidity	Most acidic H in given hydrocarbons (inductive/resonance)	Moderate
5	MR	Chemical Bonding – MO	MO ordering for homonuclear diatomics, BO, HOMO type, bond energy/length trends	Moderate–Difficult
6	MR	Inorganic – f-block	Diamagnetism of La, Ce, Yb, Lu ions (4f occupancy)	Moderate
7	MR	Organic – Haloalkanes	Finkelstein & Swarts, C–X bond length, bond enthalpy, SN2 reactivity, pKa of conjugate acids	Moderate–Difficult
8	Num	Electrochemistry	Dichromate → Cr³⁺ in acidic medium, current needed for 1 mol Cr³⁺ (Faraday’s law)	Moderate
9	Num	Ionic Equilibria	Weak monobasic acid, given [H⁺], Ka, Kw; consistency/check value	Moderate
10	Num	Gaseous State	Van der Waals eqn rewritten in terms of Vm, ratio of coefficients	Moderate
11	Num	Thermodynamics / Electrolysis	Expansion work for electrolysis of 144 g H₂O at 300 K at constant pressure	Moderate–Difficult
12	Num	Organic – Polymers/Qualitative	Monomer for Nylon-6,6 gives carbylamine test, Dumas method → moles of N₂ from 10 mol	Easy–Moderate
13	Num	Organic – Multi-step synthesis	3–4 step reaction with given yields, total grams of product S from 16 mol X	Difficult (lengthy stoichiometry)
14	MCMT	Inorganic Qualitative	Group reagent vs cation (H₂S in NH₄OH/HCl, (NH₄)₂CO₃, NH₄OH + NH₄Cl → Cu²⁺, Ba²⁺, Mn²⁺, Al³⁺, Mg²⁺)	Moderate
15	MCMT	Named Reactions (Org.)	Stephen, Sandmeyer, Hoffmann bromamide, Cannizzaro matched to given synthetic schemes	Moderate–Difficult
16	MCMT	Organic Qualitative	Matching structures with tests: diazo coupling, ninhydrin, FeCl₃, phthalein dye etc.	Moderate–Difficult

PAPER – 2 (Chemistry)

Structure & Types

Total Number of Questions (Chemistry): 16 (Q1–Q4 MCQ, Q5–Q8 MR, Q9–Q16 Numerical).
Question Types:

MCQ (single correct): 4
MR (multiple correct): 4
Numerical Value: 8 (Q9–Q16, all Chemistry numericals)
(No separate Chemistry matching sets in Paper 2; matching is in other subjects here.)

Overall Level:Easy to Moderate, with a cluster of medium-difficulty numericals in physical chemistry.

Approximate difficulty split (Chemistry, Paper 2)

Numbers of Easy Questions: ~3–4

Examples: sodium nitroprusside ligand conversion (Q1), P–H bond identification (Q6), density of ccp lattice using standard formula, simple qualitative facts in intermolecular forces.

Numbers of Moderate Questions: ~8–9

Examples: hydrolysis of ICl/ClF₃/BrF₅ (Q2), organic sequences leading to dicarboxylic acid (Q4), organic multi-step X–Y–Z logic (Q7, Q8), Ksp/common-ion solubility, Freundlich isotherm calculation, osmotic pressure molar mass, Mn complex magnetism, carbohydrate composition.

Numbers of Difficult Questions: ~3–4

Examples: pseudo-first order kinetics error estimation (Q12), butane fuel cell ΔG° → Ecell (Q14), multi-component carbohydrate composition (Q16), some deeper reasoning in organic sequences (especially interpreting multiple tests/product nature).

Most covered and important topics (Chemistry, Paper 2)

Physical Chemistry

Intermolecular forces and distance dependence for different interactions.
Solid state (ccp density), solubility and Ksp in presence of common ions, adsorption (Freundlich isotherm), chemical kinetics with pseudo-first-order assumption and error, colligative properties via osmotic pressure, and electrochemistry/thermodynamics of fuel cells.

Inorganic Chemistry

Qualitative inorganic (sodium nitroprusside test for S²⁻).
Halogen oxyacid formation via hydrolysis of interhalogens (ICl, ClF₃, BrF₅).
Oxyacids of phosphorus and P–H bonding; coordination chemistry of Mn complexes and spin-only moments.

Organic / Biomolecular

Reaction sequences deciding degree of unsaturation and formation of dicarboxylic acids.
Amines and functional group-based tests (Hinsberg, isocyanide formation, basicity/aromatic amines).
Aromatic and aliphatic transformations checked via Baeyer test, NaHCO₃ effervescence, oxidation–reduction steps.
Carbohydrate/biomolecule composition and distribution of ribose, 2‑deoxyribose, and glucose in an octasaccharide.

Paper 2 Chemistry leanedslightly more towards physical chemistry numericals, but organic and inorganic were crucial for the MR and conceptual MCQ part, making balanced preparation necessary.

Q No.	Type	Main Topic	Subtopic / Idea	Difficulty
1	MCQ	Inorganic – Qualitative / Coordination	Sodium nitroprusside test of S²⁻; ligand converted to NOS/SCN/SNO/NCS	Easy–Moderate
2	MCQ	Inorganic – Halogen Oxyacids	Complete hydrolysis of ICl, ClF₃, BrF₅ → correct oxyanions	Moderate
3	MCQ	Organic – Reaction Sequences	Monocyclic products P, Q, R, S; choose highest unsaturation	Moderate–Difficult
4	MCQ	Organic – Synthetic Strategy	Choose reaction sequence giving dicarboxylic acid as major product	Moderate
5	MR	Physical – Intermolecular Forces	Distance dependence for charge–charge, charge–dipole, dipole–dipole, London forces	Moderate
6	MR	Inorganic – Oxyacids of P	Identify compounds with P–H bonds among H₃PO₄, H₃PO₃, H₄P₂O₇, H₃PO₂	Easy
7	MR	Organic – Amines/Functional Groups	Multi-step reaction X → Y → Z; Hinsberg, isocyanide test, nature of Z	Moderate–Difficult
8	MR	Organic – Carboxylic / Aromatic	Sequence P→Q→R→S (NaOH/CaO, LiAlH₄, CrO₃–H₂SO₄, H₂SO₄, 443 K), tests: Baeyer, NaHCO₃, unsaturation	Moderate–Difficult
9	Num	Solid State	Density of metal with ccp (fcc) lattice, a = 400 pm	Moderate
10	Num	Solubility Equilibrium	Solubility of Ba(IO₃)₂ in common-ion mixture, using Ksp	Moderate
11	Num	Surface Chemistry	Freundlich isotherm from two data points; predict adsorption at new concentration	Moderate
12	Num	Chemical Kinetics	A + B → products, pseudo–first order approx, error in rate when 40% complete	Difficult (concept + math)
13	Num	Colligative / Osmotic Pressure	Dilute macromolecule solution, height h, calculate M, express as 10^X	Moderate
14	Num	Electrochemistry / Thermodynamics	Fuel cell of butane combustion, given ΔG⁰ of species, cell potential 10^X	Moderate–Difficult
15	Num	Coordination / Magnetic	Sum of spin-only μ (BM) of [MnBr₆]³⁻ and [Mn(CN)₆]³⁻	Moderate
16	Num	Carbohydrates / Biomolecules	Octasaccharide → ribose, 2-deoxyribose, glucose; 58.26% 2-deoxyribose, find ribose units	Moderate–Difficult

JEE Advanced Chemistry Paper Analysis 2024

PAPER -1

Total Number of Question- 17
Question Types- MCQ (Multiple choice question), MR (Multiple- response), NV (Numerical Values) ,MCMT (Multiple Choice Matching Type)
Level of Questions- Moderate
Numbers of Easy Questions – 2
Numbers of Moderate Questions- 10
Numbers of Difficult Questions-5

PAPER -2

Total Number of Question- 17
Question Types- MCQ (Multiple choice question), MR (Multiple- response), Numerical Values , CD+NV (Common data with numerical Value)
Level of Questions- Moderate
Numbers of Easy Questions – 2
Numbers of Moderate Questions- 9
Numbers of Difficult Questions-6

	JEE ADVANCE CHEMISTRY PAPER 1 ANALYSIS
BRANCH OF CHEMISTRY		TOPIC	SUBTOPIC	SUBTOPIC	QST TYPE	JEE ADVANCE 2024	JEE ADVANCE 2023		JEE ADVANCE 2022
						NO.OF QST	NO.OF QST		NO.OF QST
*GENERAL CHEMISTRY*
		STOICHIOMETRY			NV		1		2
*PHYSICAL CHEMISTRY*
		STATES OF MATTER
			GASEOUS AND LIQUID STATE		NV	1	1
		CHEMICAL ENERGETICS AND THERMODYNAMICS
			CHEMICAL THERMODYNAMICS		NV	1	1		1
		CHEMICAL AND IONIC EQUILIBRIUM
			IONIC EQUILIBRIUM		MC		1
					NV		1		1
		CHEMICAL KINETICS			NV	1	1
					MCMT				1
		ELECTROCHEMISTRY			MC		1
					MCMT	1
					NV				1
		ATOMIC STRUCTURE AND CHEMICAL BONDING
			ATOMIC STRUCTURE		MR	1
			CHEMICAL BONDING		MR	1			1
					MCMT	1
		SURFACE CHEMISTRY AND CATALYSIS			MR				1
*INORGANIC CHEMISTRY*
		CHEMITRY OF REPRESENTATIVE ELEMENTS
			S BLOCK ELEMENTS
				GROUP 2 ELEMENTS - ALKALINE EARTH METALS	MCMT				1
			P BLOCK ELEMENTS
				GROUP 15 ELEMENTS - NITROGEN FAMILY	MCMT		1
					MR				1
					MC	1
		EXTRACTION OF ELEMENTS AND METALLURGY			MR		1		1
		COORDINATION CHEMISTRY AND ORGANO METALLICS			MC	1
			ORGANO METALLICS		NV	1
			COORDINATION COMPOUNDS		MCMT		1		1
					NV	1
*ORGANIC CHEMISTRY*
		PURIFICATION AND CHARACTERISATION OF ORG COMPDS			NV				1
		HYDROCARBONS
			HYDROCARBONS		NV				1
		ORGANIC COMPOUNDS CONTAINING HALOGENS			MC		1
					MCMT		1
					NV				1
		ORGANIC COMPOUNDS CONTAINING OXYGEN			MR	1	2
					NV	2
					MC		1
					MCMT	2	1
			CARBOXYLIC ACIDS		MR				1
		ORGANIC COMPOUNDS CONTAINING NITROGEN			NV		1
					MCMT				1
			ORGANIC COMPOUNDS WITH NITRO GROUP		MR				1
		BIOMOLECULES			MC	1
	JEE ADVANCE CHEMISTRY PAPER 2 ANALYSIS
*GENERAL CHEMISTRY*
		BASIC CONCEPTS OF GENERAL CHEMISTRY			MR			1
		STOICHIOMETRY			NV	1
					CD+NV	2
*PHYSICAL CHEMISTRY*
		STATES OF MATTER
			SOLID STATE		MR		1
					MC	1		1
		ATOMIC STRUCTURE AND CHEMICAL BONDING
			ATOMIC STRUCTURE		NV		1
					MC	1
			CHEMICAL BONDING		MC		1
					NV		1	1
		CHEMICAL ENERGETICS AND THERMODYNAMICS
			CHEMICAL THERMODYNAMICS		CD + NV		2
					MR			1
		REDOX REACTION			NV		1
		SOLUTIONS			NV	1	1	1
		SURFACE CHEMISTRY AND CATALYSIS			MC		1
		CHEMICAL AND IONIC EQUILIBRIUM
			IONIC EQUILIBRIUM		NV			1
		ELECTROCHEMISTRY			NV			1
					MR	1
		CHEMICAL KINETICS			NV	1
*INORGANIC CHEMISTRY*
		CHEMITRY OF REPRESENTATIVE ELEMENTS
			P BLOCK ELEMENTS		MC	1
				GROUP 13 ELEMENTS - BORON FAMILY	MR			1
				GROUP 16 ELEMENTS- OXYGEN FAMILY	MR	1
				GROUP 17 ELEMENTS - HALOGEN FAMILY	MC			1
				GROUP 18 ELEMENTS - NOBLE GASES	NV			1
		EXTRACTION OF ELEMENTS AND METALLURGY			MR			1
		D AND F BLOCK ELEMENTS
			TRANSITION ELEMENTS		NV		1
		COORDINATION CHEMISTRY AND ORGANO METALLICS
			COORDINATION COMPOUNDS		MR		1
					NV	1
					MC			1
*ORGANIC CHEMISTRY*
		HYDROCARBONS			CD+NV		2
			ALIPHATIC HYDROCARBONS		NV			3
			AROMATIC HYDROCARBONS		MR			1
		ORGANIC COMPOUNDS CONTAINING HALOGENS			MC	1	1
					NV		1
		ORGANIC COMPOUNDS CONTAINING OXYGEN			MR	1	1
					NV	1
					CD+NV	2
		POLYMERS NATURAL AND SYNTHETIC			MR			1
		BIO MOLECULES AND BIOLOGICAL PROCESSES			MC		1	1