Solutions carry approximately 2-3% weightage under the JEE Advanced 2025 exam according to the new JEE Advanced 2025 syllabus and previous years trends. The subject is considered moderately difficult as per conceptual depth. Common concepts such as Types of Solutions, Concentration Terms (Molarity, Molality, Normality), Colligative Properties, and Raoult’s Law are repeatedly asked in JEE Advanced previous year question papers. Hence, revising these core concepts is highly recommended for good exam performance.
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- Download JEE Advanced Question Last 10 year PYQ for Free
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Most important Topics for JEE Advanced 2025 (Solutions):
Based on the JEE Advanced previous year paper trends, the following are the high-weightage topics in JEE Advanced 2025:
- Types of Solutions and Solubility (JEE Advanced 2018, Paper 1)
- Concentration Terms: Molarity, Molality, and Normality (JEE Advanced 2016, Paper 2)
- Colligative Properties: Boiling Point Elevation and Freezing Point Depression (JEE Advanced 2019, Paper 2)
- Raoult’s Law and Ideal Solutions (JEE Advanced 2017, Paper 1)
- Vapour Pressure and its Variation (JEE Advanced 2021, Paper 2)
- Osmotic Pressure and its Applications (JEE Advanced 2015, Paper 1)
JEE Advanced previous year question papers and mock tests can assist IIT Aspirants to achieve higher rankings in JEE Advanced 2025.
Listed below the most repeated questions JEE Advanced Previous Year Questions (PYQs) for Solutions along with detailed solutions

JEE Advanced 2025 Chapter-Wise Weightage For Chemistry
| Chapter Name | Approx. Weightage (%) | No. of Expected Questions |
|---|---|---|
| Chemical Thermodynamics | 6–8% | 2 |
| Atomic Structure | 5% | 1–2 |
| Chemical Bonding & Molecular Structure | 6–7% | 2 |
| Equilibrium (Ionic + Chemical) | 7–9% | 2–3 |
| Electrochemistry | 5–6% | 1–2 |
| Solutions & Colligative Properties | 4–5% | 1–2 |
| Redox Reactions | 3% | 1 |
| Surface Chemistry | 3% | 1 |
| Solid State | 3–4% | 1 |
| Kinetics | 5–6% | 1–2 |
| Organic Chemistry (General + Named Reactions) | 12–14% | 4–5 |
| Biomolecules, Polymers, Chemistry in Everyday Life | 4–5% | 1–2 |
| Coordination Compounds | 6–7% | 2 |
| The d- and f-Block Elements | 5% | 1–2 |
| Qualitative Inorganic Analysis | 4% | 1 |
JEE Advanced 2025 Difficulty Analysis For Chemistry
| Chapter Name | Difficulty Level (Easy / Moderate / Hard) |
|---|---|
| Chemical Thermodynamics | Moderate to Hard |
| Atomic Structure | Moderate |
| Chemical Bonding | Moderate |
| Equilibrium | Hard |
| Electrochemistry | Hard |
| Solutions | Moderate |
| Redox Reactions | Easy |
| Surface Chemistry | Easy |
| Solid State | Moderate |
| Chemical Kinetics | Moderate |
| Organic Chemistry (Full) | Moderate to Hard |
| Biomolecules & Polymers | Easy |
| Coordination Compounds | Hard |
| d- and f-Block Elements | Moderate |
| Inorganic Qualitative Analysis | Hard |
Download Last 10 years JEE Advanced Previous Year Question Papers (2024 - 2016)
IIIT JEE Advanced Previous Year Question Papers
You can download free IIT JEE Advanced Previous Year Question Paper PDFs from the table provided below:-
| JEE Advanced Paper Name | Question Paper Link |
| JEE Advanced 2024 Question Paper PDF | Click Here |
| JEE Advanced 2023 Question Paper PDF | Click Here |
| JEE Advanced 2022 Question Paper PDF | Click Here |
| JEE Advanced 2021 Question Paper PDF | Click Here |
| JEE Advanced 2020 Question Paper PDF | Click Here |
| JEE Advanced 2019 Question Paper PDF | Click Here |
| JEE Advanced 2018 Question Paper PDF | Click Here |
| JEE Advanced 2017 Question Paper PDF | Click Here |
| JEE Advanced 2016 Question Paper PDF | Click Here |
Frequently Asked Questions:-
1. Can I get IIT with 75 marks in JEE Advanced?
For 75 marks, it may be difficult to obtain admission into premier IITs since JEE Advanced cutoff tends to require a higher mark, especially when admission into popular streams is sought. However, the cutoff varies from year to year, depending on the level of difficulty and the number of students. For open category students, scores are normally expected to be more than 150-200 in order to obtain a seat in an IIT.
2. Is scoring 150 in JEE Advanced easy?
Scoring 150 in JEE Advanced is possible, but it must be achieved strategically. Master important topics, solve a lot of problems, and learn how to handle time during the exam. The difficulty level in JEE Advanced varies annually, but a consistent preparation schedule on the basis of topics like mechanics, electrostatics, and modern physics can be effective.
3. What are the important topics in solutions?
- Types of Solutions: Learn solid, liquid, and gas solutions. It is extremely easy and a student's favourite in JEE Advanced!
- Concentration Terms: Learn Molarity, Molality, and Normality. These are formula-based and often asked as numericals.
- Colligative Properties: Focus on boiling point elevation, freezing point depression, and osmotic pressure. Hot topics in JEE!
- Raoult's Law: A straightforward rule regarding vapor pressure in ideal solutions. It's trending in previous papers!
- Vapour Pressure: How does it vary with mixing—crucial for rapid conceptual questions.
- Ideal and Non-Ideal Solutions: Be aware of the distinction. It's a scoring point if you nail it!
These are high-weightage and very crucial based on JEE Advanced trends. Learn smart, and you'll top it!
4. Which is the toughest chapter in JEE Advanced Physics?
Optics, Modern Physics, and Electrostatics are considered to be the most difficult chapters in JEE Advanced Physics by many students. Optics needs a clear concept of waves. Modern Physics checks your quantum mechanics and atomic model knowledge. Electrostatics also has conceptual problems in electric fields and potential.







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