Higher Secondary 2025 Chemistry Question Paper pdf

Examination: Higher Secondary
Exam Year : 2025
Subject: Chemistry
File Name: Higher Secondary 2025 Chemistry Question Paper
File Type: PDF
File Size: 1.07 mb
No of Pages: 12

You can download it from the given link below👇

I currently don’t have access to the direct Higher Secondary 2025 Chemistry Question Paper PDF. However, I can help guide you on where to find it and provide useful tips for preparing for the Chemistry exam for Higher Secondary 2025.

Where to Find the Higher Secondary 2025 Chemistry Question Paper:

1. Official WBCHSE Website:

   • The West Bengal Council of Higher Secondary Education (WBCHSE) is responsible for the Higher Secondary exam. They release model question papers, sample papers, and previous years’ question papers on their official website.

   • Visit the official WBCHSE website: wbchse.nic.in for more details and to download relevant papers.

2. Educational Websites:

   • Vedantu, Byju’s, Toppr, and Embibe provide Chemistry sample papers, model question papers, and study materials.

   • These websites also have video lessons and explanations to help you understand difficult concepts in Chemistry.

3. Books and Study Guides:

   • S. Chand, R. Gupta, and other popular publishers offer Chemistry books with model question papers, practice tests, and important concepts that align with the WBCHSE syllabus.

4. Social Media and Online Communities:

   • You can join Facebook groups, WhatsApp groups, and Reddit forums where students share resources like past question papers, notes, and study materials.

5. YouTube Channels:

   • Many YouTube channels focus on solving past Chemistry question papers, explaining complex topics in detail, and helping students with preparation tips.

Structure of the Chemistry Exam (Based on Previous Years):

1. Theory Section:

   • Section A: Objective questions such as multiple-choice questions (MCQs), fill-in-the-blanks, and match the following.

   • Section B: Short answer questions (2-3 marks) that may require you to define terms, give chemical reactions, or explain fundamental concepts.

   • Section C: Long answer questions (5-6 marks), often requiring you to explain reactions, mechanisms, or theories in detail, supported with diagrams where applicable.

2. Practical Section:

   • The practical exam typically involves laboratory experiments and data interpretation. You may be asked to perform tests on substances, determine their properties, or perform titrations.

Key Topics to Focus on for Chemistry:

Physical Chemistry:

1. Mole Concept: Understanding the relation between moles, mass, and number of particles.

2. Atomic Structure: Bohr’s model, quantum numbers, and atomic orbitals.

3. Chemical Bonding: Ionic bonds, covalent bonds, and hybridization.

4. States of Matter: Properties of gases, liquid-gas equilibrium, and the gas laws (Boyle’s Law, Charles’s Law).

5. Thermodynamics: Laws of thermodynamics, enthalpy, entropy, and Gibbs free energy.

6. Equilibrium: Chemical equilibrium, Le Chatelier’s principle, and equilibrium constant.

Inorganic Chemistry:

1. Periodic Table: Periodic trends such as atomic radius, ionization energy, and electronegativity.

2. Chemical Reactions: Types of reactions (redox, acid-base), balancing reactions, and stoichiometry.

3. Group 1 and Group 2 Elements: Properties, reactions, and applications.

4. Coordination Compounds: Ligands, coordination number, and isomerism in coordination compounds.

5. Environmental Chemistry: Air and water pollution, greenhouse effect, and environmental degradation.

Organic Chemistry:

1. Hydrocarbons: Alkanes, alkenes, alkynes, and aromatic compounds.

2. Functional Groups: Alcohols, aldehydes, ketones, carboxylic acids, and amines.

3. Organic Reactions: Addition, substitution, elimination, and oxidation-reduction reactions.

4. Polymers: Types of polymers, polymerization methods, and applications.

5. Biomolecules: Carbohydrates, proteins, lipids, and nucleic acids.

Study and Preparation Tips for Chemistry:

1. Understand the Basic Concepts: Chemistry is all about understanding the fundamental principles, especially in topics like atomic structure, chemical bonding, and reactions. Focus on building a strong conceptual foundation.

2. Practice Numerical Problems: Chemistry often involves numerical problems, especially in mole concept, stoichiometry, thermodynamics, and equilibrium. Practice these problems regularly.

3. Use Diagrams and Charts: Diagrams are very important in Chemical Bonding, Thermodynamics, and Organic Chemistry. Practice drawing and labeling them clearly.

4. Know Important Formulas: Make a list of important formulas and constants related to gaseous laws, mole concept, thermodynamics, and equilibrium, as you will need to recall these during the exam.

5. Solve Previous Year Papers: Practicing previous year question papers will help you understand the format of the exam and the types of questions that are frequently asked. It also helps in time management.

6. Focus on Reactions and Mechanisms: Organic and Inorganic Chemistry often involve reactions and mechanisms. Learn the reaction mechanisms, reagents, and products associated with different functional groups.

7. Revise Periodically: Chemistry requires consistent revision due to its vast syllabus. Plan a study schedule that allows you to revise regularly and not leave everything until the last minute.

Sample Questions to Practice for Chemistry:

1. Physical Chemistry:

   • Define the mole concept and calculate the number of moles in 20 grams of NaCl.

   • Explain Boyle’s Law and derive its mathematical expression. Perform a numerical problem based on it.

2. Inorganic Chemistry:

   • Write the electronic configuration of elements in the periodic table and explain periodic trends in atomic radius and ionization energy.

   • Explain the preparation and properties of hydrogen and oxygen.

3. Organic Chemistry:

   • Discuss the mechanism of the nucleophilic substitution reaction in alkyl halides.

   • Write the IUPAC names of the following compounds: CH3-CH2-COOH, C6H5OH, CH3NH2.

4. Environmental Chemistry:

   • Discuss the effects of air pollution and suggest measures to control it.

   • Explain the causes and effects of acid rain.

Additional Resources for Chemistry Preparation:

• NCERT Textbooks: These are highly recommended for understanding the basic concepts of Chemistry. They provide both theoretical and practical aspects of the syllabus.

• Reference Books: Books by O.P. Tandon, Morrison and Boyd, and J.D. Lee are helpful for advanced concepts.

• Online Resources: Websites like Khan Academy, Vedantu, and BYJU’s have excellent tutorials and practice tests.

• YouTube Channels: Channels like Unacademy, Physics Wallah, and EtoosIndia offer free video lectures on Chemistry topics.

If you want more detailed notes on specific topics or need help with solving complex problems in Chemistry, feel free to ask. I’m here to help you!

Higher Secondary 2025 Chemistry Question Paper pdf