JEE Main Chemistry Important Questions[2025]
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JEE Main Chemistry Important Questions MCQ Practice Tool 2025 –
Hello Students, Are you getting ready for the JEE Main 2025 exam? If yes, then you’ve come to the right place! Chemistry is an important subject that can help you score higher if you prepare well. To make your preparation more easier, we’ve created the JEE Main Chemistry MCQ Practice Tool specially for you.
This tool is designed to help you practice the most important multiple-choice questions (MCQs) based on important topics and previous years’ papers.
JEE MAIN 2025 Exam Date:
The JEE Main 2025 examination will be conducted in two sessions:
| Session | Exam Dates | Details |
|---|
| Session 1 | January 22 to 31, 2025 | First attempt for JEE Main 2025 |
| Session 2 | April 1 to 8, 2025 | Second attempt for JEE Main 2025 |
JEE Main 2025 Exam Pattern Overview:
| Aspect | Paper 1 (B.E./B.Tech) | Paper 2 (B.Arch./B.Planning) |
|---|---|---|
| Subjects | Physics, Chemistry, Mathematics | Mathematics, Aptitude, Drawing (for B.Arch.) or Planning (for B.Planning) |
| Number of Questions | 75 questions (25 in each subject) | Mathematics: 20 MCQs + 10 Numerical Aptitude: 50 MCQs Drawing/Planning: 2 questions |
| Question Type | – Section A: 20 MCQs (1 correct answer) – Section B: 5 Numerical questions (no options) | Mathematics: MCQs and Numerical Aptitude: MCQs Drawing/Planning: Creative assessment |
| Marking Scheme | +4 for correct, -1 for incorrect (for MCQs) No negative marking for Numerical questions | Same for Mathematics and Aptitude. Drawing/Planning: Based on creativity |
| Total Marks | 300 marks (Physics, Chemistry, Mathematics) | 400 marks (Mathematics: 100, Aptitude: 200, Drawing/Planning: 100) |
| Duration | 3 hours | 3 hours |
| Mode of Exam | Computer-Based Test (CBT) | Computer-Based Test (CBT) |
| Language | English, Hindi, and other regional languages | English and Hindi |
| Frequency | Twice a year (January & April) | Twice a year (January & April) |
JEE Advanced 2025 Exam Pattern Overview:
| Aspect | Paper 1 | Paper 2 |
|---|---|---|
| Subjects | Physics, Chemistry, Mathematics | Physics, Chemistry, Mathematics |
| Number of Questions | 27 questions (9 questions per subject) | 27 questions (9 questions per subject) |
| Question Type | – MCQs, MSQs (Multiple Select), Numerical, Match the Following, Assertion & Reasoning | – MCQs, MSQs, Numerical, Match the Following, Assertion & Reasoning |
| Marking Scheme | +4 for correct, -1 for incorrect (for MCQs/MSQs) No negative for Numerical questions | +4 for correct, -1 for incorrect (for MCQs/MSQs) No negative for Numerical questions |
| Total Marks | 180 marks (Each subject: 60 marks) | 180 marks (Each subject: 60 marks) |
| Duration | 3 hours | 3 hours |
| Mode of Exam | Computer-Based Test (CBT) | Computer-Based Test (CBT) |
| Language | English, Hindi | English, Hindi |
| Frequency | Once a year (usually in May) | Once a year (usually in May) |
Physical Chemistry:
| Chapter Name | Expected Questions | Difficulty Level |
|---|---|---|
| Mole Concept | – Stoichiometry questions, Limiting reagent problems, Empirical formula calculations | ★★★★ |
| – Simple mole-to-mole conversions, mole fraction, and percentage composition | ★★★ | |
| Atomic Structure | – Quantum numbers and electronic configuration of atoms | ★★★ |
| – Bohr’s model, Energy level calculations, Spectroscopic data interpretation | ★★★ | |
| Chemical Bonding and Molecular Structure | – VSEPR theory to determine molecular shapes | ★★★★ |
| – Hybridization, Molecular orbital theory, Bond order, Bond angles | ★★★★ | |
| – Dipole moment and polarity of molecules | ★★★ | |
| States of Matter: Gases and Liquids | – Ideal gas law and its applications, Dalton’s Law of partial pressures | ★★★ |
| – Real gas behavior, Van der Waals equation | ★★★ | |
| Thermodynamics | – First and second laws of thermodynamics, Enthalpy, Entropy, Gibbs free energy | ★★★★ |
| – Numerical problems based on the concept of spontaneity and equilibrium | ★★★ | |
| Equilibrium | – Le Chatelier’s principle, calculation of equilibrium constant and direction of reactions | ★★★★ |
| – Acid-base equilibria, pH calculations, Solubility product, Buffer solutions | ★★★★ | |
| Kinetics | – Rate laws, Order of reaction, Activation energy, Arrhenius equation | ★★★ |
| – Determining the rate constant from experimental data | ★★★ | |
| Surface Chemistry | – Colloid properties, Adsorption, Catalysis | ★★ |
| Solutions | – Colligative properties (boiling point elevation, freezing point depression), Raoult’s Law | ★★★ |
| – Molality, Molarity and normality calculations | ★★★ |
Inorganic Chemistry:
| Chapter Name | Expected Questions | Difficulty Level |
|---|---|---|
| Periodic Table and Periodicity | – Trends in atomic radius, Ionization energy, Electron affinity, Electronegativity | ★★★ |
| – Group 13-18 trends and properties, Special emphasis on noble gases | ★★★ | |
| Chemical Bonding and Coordination Chemistry | – Ligand types, Coordination number, Isomerism, Werner’s theory | ★★★★ |
| – Crystal field theory (d-orbital splitting, magnetic properties) | ★★★★ | |
| p-Block Elements | – Group 13-18 elements, their properties and chemical reactions | ★★★ |
| – Halides, Oxides, and other compounds of p-block elements | ★★★ | |
| d- and f-Block Elements | – Transition metals, Oxidation states, Magnetic properties | ★★★ |
| – Lanthanides, Actinides, their properties, and applications | ★★★ | |
| Environmental Chemistry | – Environmental pollution, Greenhouse gases, Ozone layer depletion, Acid rain | ★★ |
Organic Chemistry:
| Chapter Name | Expected Questions | Difficulty Level |
|---|---|---|
| Basic Principles and Techniques | – Nomenclature, IUPAC naming of organic compounds | ★★★ |
| – Functional group identification, Isomerism (structural, geometric, optical) | ★★★ | |
| Hydrocarbons | – Reactions of alkanes, alkenes, alkynes (addition, substitution) | ★★★★ |
| – Aromatic compounds (Electrophilic substitution reactions) | ★★★★ | |
| Haloalkanes and Haloarenes | – Nucleophilic substitution reactions (SN1, SN2), Reactions of alkyl halides | ★★★ |
| Alcohols, Phenols, and Ethers | – Reactions of alcohols, phenols, ethers (Williamson synthesis) | ★★★ |
| – Methods of preparation, properties, and applications | ★★★ | |
| Aldehydes, Ketones, and Carboxylic Acids | – Aldol condensation, Reactions of carbonyl compounds | ★★★★ |
| – Decarboxylation reactions, Acidity of carboxylic acids | ★★★★ | |
| Organic Compounds Containing Nitrogen | – Amines (nomenclature, properties, reactions) | ★★★ |
| – Cyanides, Isocyanides, their reactions and applications | ★★★ | |
| Biomolecules | – Structure and function of carbohydrates, proteins, lipids, enzymes, vitamins | ★★★ |
| – Nucleic acids (DNA/RNA) and their roles | ★★★ | |
| Polymers | – Polymerization (addition, condensation), Types of polymers, Biodegradable polymers | ★★ |
Why Use This Tool?
- Updated for 2025 Exam: The tool is designed with the latest syllabus and patterns of the JEE MAINS Exam.
- Covers General Chemistry, Organic Chemistry, and Physical Chemistry topics.
- We regularly updated questions to match the latest exam patterns.
- Provides instant feedback and explanations to help you learn from your mistakes.
- Absolutely free to use!
How to Use This Tool:
- Daily Practice: You have to spend at least 45 minutes daily solving MCQs.
- Analyze Mistakes: Use the feedback to see why the answer is right.
- Revise Regularly: Revisit incorrect answers to clear your concepts.
Conclusion:
Thank you for choosing Our JEE Main Chemistry MCQ Practice Tool. With regular practice, you can improve your speed, understand tricky topics, and feel more confident for the exam. Start practicing today and take a step closer to your dream score. Hard work and smart preparation
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