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Bihar Board Class 12 Chemistry Previous Year Question Papers PDF (Last 5 Years)

Bihar Board Class 12 Chemistry Previous Year Question Papers: The Bihar School Examination Board (BSEB) conducts the Class 12 Chemistry examination every year for Science stream students. Solving previous year Chemistry question papers is one of the most effective ways to understand the latest exam pattern, marking scheme, important reactions, numerical questions, organic conversions, and frequently asked concepts. Students preparing for the Bihar Board Intermediate Examination can download the Bihar Board Class 12 Chemistry Previous Year Question Papers PDF and practice them regularly to improve conceptual understanding, accuracy, and confidence.

Regular practice of the last five years’ Chemistry question papers helps students identify high-weightage chapters, revise important reactions, strengthen numerical problem-solving skills, and perform better in both objective and subjective sections of the board examination.

Bihar Board Class 12 Chemistry Previous Year Question Papers Overview

Board NameBihar School Examination Board (BSEB)
Class12th (Intermediate)
SubjectChemistry
Academic Session2026–27
Exam ModeOffline
Total Marks100 Marks
Previous Papers Available2021–2025
Official Websitesecondary.biharboardonline.com

Bihar Board Class 12 Chemistry Previous Year Question Papers PDF Download

Students can download the year-wise Bihar Board Class 12 Chemistry Question Papers using the links below.

Bihar Board Class 12 Chemistry Question Paper 2026

PaperDownload
Bihar Board Class 12 Chemistry Question Paper 2026To be available
Bihar Board Class 12 Chemistry Answer Key 2026To be available

Bihar Board Class 12 Chemistry Question Paper 2025

PaperDownload
Bihar Board Class 12 Chemistry Question Paper 2025Download PDF
Bihar Board Class 12 Chemistry Answer Key 2025Download PDF

Bihar Board Class 12 Chemistry Question Paper 2024

PaperDownload
Bihar Board Class 12 Chemistry Question Paper 2024Download PDF
Bihar Board Class 12 Chemistry Answer Key 2024Download PDF

Bihar Board Class 12 Chemistry Question Paper 2023

PaperDownload
Bihar Board Class 12 Chemistry Question Paper 2023Download PDF
Bihar Board Class 12 Chemistry Answer Key 2023Download PDF

Bihar Board Class 12 Chemistry Question Paper 2022

PaperDownload
Bihar Board Class 12 Chemistry Question Paper 2022Download PDF
Bihar Board Class 12 Chemistry Answer Key 2022Download PDF

Bihar Board Class 12 Chemistry Question Paper 2021

PaperDownload
Bihar Board Class 12 Chemistry Question Paper 2021Download PDF
Bihar Board Class 12 Chemistry Answer Key 2021Download PDF

Bihar Board Class 12 Chemistry Exam Pattern

Before solving previous year papers, students should understand the latest Chemistry exam pattern prescribed by the Bihar Board.

ComponentMarks
Theory Examination70
Practical Examination30
Total Marks100

The theory paper generally consists of:

  • Multiple Choice Questions (MCQs)
  • Very Short Answer Questions
  • Short Answer Questions
  • Long Answer Questions
  • Numerical Problems
  • Chemical Reaction-Based Questions
  • Organic Conversion Questions
  • Assertion & Reasoning Questions

Understanding this pattern helps students prepare strategically and manage time effectively during the examination.

Bihar Board Class 12 Previous Year Question Papers PDF

Candidates preparing for the Bihar Board Intermediate Examination can download the Bihar Board Class 12 Previous Year Question Papers for all major subjects from the table below. Practicing previous year papers helps students understand the latest exam pattern, marking scheme, important topics, and the types of questions asked in the BSEB Class 12 Board Examination.

SubjectDownload PDF
PhysicsDownload PDF
ChemistryDownload PDF
MathematicsDownload PDF
BiologyDownload PDF
EnglishDownload PDF
HindiDownload PDF
AccountancyDownload PDF
Business StudiesDownload PDF
Business EconomicsDownload PDF
EntrepreneurshipDownload PDF
EconomicsDownload PDF
Political ScienceDownload PDF
HistoryDownload PDF
GeographyDownload PDF
PsychologyDownload PDF
SociologyDownload PDF
PhilosophyDownload PDF
Home ScienceDownload PDF
Computer ScienceDownload PDF
AgricultureDownload PDF
MusicDownload PDF
MaithiliDownload PDF
SanskritDownload PDF
UrduDownload PDF

Important Chapters for Bihar Board Class 12 Chemistry

Most Bihar Board Chemistry papers include questions from the following chapters.

  • Solutions
  • Electrochemistry
  • Chemical Kinetics
  • Surface Chemistry
  • General Principles and Processes of Isolation of Elements
  • p-Block Elements
  • d- and f-Block Elements
  • Coordination Compounds
  • Haloalkanes and Haloarenes
  • Alcohols, Phenols and Ethers
  • Aldehydes, Ketones and Carboxylic Acids
  • Amines
  • Biomolecules
  • Polymers
  • Chemistry in Everyday Life

Students should pay special attention to named reactions, organic conversions, numerical problems, important formulas, and NCERT-based theory questions.

Benefits of Solving Bihar Board Class 12 Chemistry Previous Year Question Papers

Regular practice of previous year papers offers several advantages.

  • Understand the latest BSEB Chemistry exam pattern.
  • Identify repeated questions and important chapters.
  • Strengthen Organic, Physical, and Inorganic Chemistry concepts.
  • Improve reaction writing and balancing skills.
  • Practice important numerical problems.
  • Increase speed and accuracy during the examination.
  • Improve time management.
  • Analyze weak areas and revise accordingly.
  • Build confidence before the final board examination.
  • Enhance overall Chemistry scores.

How to Solve Bihar Board Class 12 Chemistry Previous Year Papers?

Students should follow these steps for maximum benefit.

  1. Complete the Chemistry syllabus before attempting full-length papers.
  2. Solve each paper within the official exam duration.
  3. Attempt questions without referring to books.
  4. Compare your answers with the official answer key or textbook.
  5. Revise chapters where mistakes occur.
  6. Practice important reactions and numerical questions repeatedly.
  7. Solve all previous year papers multiple times before the examination.

Bihar Board Class 12 Chemistry Preparation Tips

Students can improve their performance by following these preparation strategies.

  • Complete the NCERT textbook thoroughly.
  • Revise Organic Chemistry reactions daily.
  • Memorize important inorganic compounds and exceptions.
  • Practice Physical Chemistry numericals regularly.
  • Prepare short notes for formulas, reactions, and named reactions.
  • Solve model papers and mock tests.
  • Revise high-weightage chapters every week.
  • Focus on conceptual clarity instead of rote learning.
  • Practice assertion-reason and competency-based questions.
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