Free PDF downloads with blueprints and exam analysis. Available in Hindi & English Medium.
Why Practice CGBSE Chemistry Previous Year Papers?
If you are appearing for the CGBSE Class 12 Science board exams, practicing Chemistry previous year question papers is the ultimate key to unlocking a 90%+ score. Chemistry is a unique subject that blends mathematical numericals (Physical Chemistry), logical reasoning (Inorganic Chemistry), and heavy memorization (Organic Chemistry).
Because the Chhattisgarh Board strictly follows the SCERT/NCERT syllabus, examiners have a limited pool of high-yield concepts to test. Students who solve at least 5 to 7 years of past papers easily spot these trends. You will quickly realize that specific named reactions (like Aldol Condensation or Reimer-Tiemann), IUPAC nomenclature patterns, and VBT/CFT questions repeat almost every single year.
Below, you will find a massive, organized library of 50+ CGBSE Class 12 Chemistry question papers spanning from 2017 to 2026. This includes main board exams, half-yearly papers, quarterly tests, and official blueprints—all available as safe, one-click PDF downloads.
CGBSE Chemistry Exam Overview
| Parameter | Details |
|---|---|
| Board | Chhattisgarh Board of Secondary Education (CGBSE) |
| Class | Class 12 (Science Stream) |
| Subject | Chemistry |
| Total Theory Marks | 70 Marks |
| Practical / Project Marks | 30 Marks |
| Passing Marks | 23 Marks (Theory) |
| Exam Duration | 3 Hours |
| Medium | Hindi & English |
Blueprint & High-Weightage Chapters for Chemistry
The CGBSE 70-mark theory paper is systematically divided into three main branches. Understanding this weightage helps you allocate your study time exactly where it matters most.
| Unit / Chapter | Approximate Marks |
|---|---|
| Physical Chemistry (Solutions, Electrochemistry, Chemical Kinetics) | 23 Marks |
| Inorganic Chemistry (d-block, f-block, Coordination Compounds) | 19 Marks |
| Organic Chemistry (Haloalkanes, Alcohols, Aldehydes, Amines) | 21 Marks |
| Biomolecules & Miscellaneous | 7 Marks |
💡 Key Insight:Organic Chemistry is the heaviest portion of the exam. Do not try to memorize it the night before. Instead, create a dedicated chart mapping out all standard conversions (e.g., Ethanol to Ethanoic Acid) and Named Reactions.
Paper Pattern & Typology of Questions
The CGBSE Chemistry board paper follows a standardized pattern to test factual knowledge, numerical ability, and molecular reasoning:
- 1-mark Questions (Objective/MCQ/One Word): Tests basic definitions and direct formulas.
- 2-mark & 3-mark Questions (Short Answer): Forms the bulk of the paper. Expect IUPAC naming, reasoning questions (e.g., “Why do transition metals form colored complexes?”), and direct physical chemistry numericals.
- 5-mark Questions (Long Answer): Contains internal choices (OR questions). These are almost exclusively reserved for heavy Organic Chemistry conversions/mechanisms or major topics like the Nernst Equation and Kohlrausch’s Law.
⚠️ Step-Marking Rule (CGBSE): The board strictly follows step-marking. In Physical Chemistry numericals, even if your final calculated answer is wrong, writing the correct formula and putting in the given values will earn you partial marks. Never leave a numerical blank!
Expert Preparation Strategy for CG Board Chemistry
To cross the 90+ threshold, implement these actionable study strategies into your daily routine:
- The Named Reaction Wall: Write down all 25-30 Named Reactions (Cannizzaro, Wurtz, Sandmeyer, etc.) on a large chart paper with their exact reagents and paste it on your wall. 8-10 marks come directly from this every year.
- Master Coordination Compounds: Questions on Valence Bond Theory (VBT) and Crystal Field Theory (CFT) regarding magnetic properties and geometry (tetrahedral vs. octahedral) are highly predictable and easy to score.
- Target the Numericals: Physical Chemistry numericals (from Solutions and Electrochemistry) are formula-based. Always write the given values, the formula, and remember to write the correct SI Unit at the end of your answer.
📚 Related Study Materials for Science Students
Supercharge your board prep! Check out our complete guides and free PDF downloads for your other core subjects:
Download CGBSE Class 12 Chemistry Question Papers
Below is our complete archive of official CGBSE Chemistry question papers securely hosted on Google Drive. Click the download button next to each paper to save the PDF directly to your device. (External/Redirect links have been removed for your safety.)
| # | Paper Title / Year | Action |
|---|---|---|
| 1 | Class 12 Chemistry Blue Print (2026) | Download PDF |
| 2 | Class 12 Chemistry Main Exam – Set A (2023) | Download PDF |
| 3 | Class 12 Chemistry Main Exam – Set B (2023) | Download PDF |
| 4 | Class 12 Chemistry Main Exam – Set B (2019) | Download PDF |
| 5 | Class 12 Chemistry Main Exam – Set A (2019) | Download PDF |
| 6 | Class 12 Chemistry Main Exam – Set A (2025) | Download PDF |
| 7 | Class 12 Chemistry Main Exam – Set B (2025) | Download PDF |
| 8 | Class 12 Chemistry Main Exam – Set C (2025) | Download PDF |
| 9 | Class 12 Chemistry Main Exam – Set A (2020) | Download PDF |
| 10 | Class 12 Chemistry Main Exam – Set B (2020) | Download PDF |
| 11 | Class 12 Chemistry Main Exam – Set C (2020) | Download PDF |
| 12 | Class 12 Chemistry Main Exam – Set A (2024) | Download PDF |
| 13 | Class 12 Chemistry Main Exam – Set B (2024) | Download PDF |
| 14 | Class 12 Chemistry Main Exam – Set C (2024) | Download PDF |
| 15 | Class 12 Chemistry Main Exam – Set A (2021) | Download PDF |
| 16 | Class 12 Chemistry Main Exam – Set B (2021) | Download PDF |
| 17 | Class 12 Chemistry Main Exam – Set C (2021) | Download PDF |
| 18 | Class 12 Chemistry Main Exam – Set A (2026) | Download PDF |
| 19 | Class 12 Chemistry Main Exam – Set B (2026) | Download PDF |
| 20 | Class 12 Chemistry Main Exam – Set C (2026) | Download PDF |
| 21 | Class 12 Chemistry Main Exam – Set A (2017) | Download PDF |
| 22 | Class 12 Chemistry Main Exam – Set B (2017) | Download PDF |
| 23 | Class 12 Chemistry Main Exam – Set C (2017) | Download PDF |
| 24 | Class 12 Chemistry Main Exam – Set A (2022) | Download PDF |
| 25 | Class 12 Chemistry Main Exam – Set B (2022) | Download PDF |
| 26 | Class 12 Chemistry Main Exam – Set C (2022) | Download PDF |
| 27 | Class 12 Chemistry Main Exam – Set A (2018) | Download PDF |
| 28 | Class 12 Chemistry Main Exam – Set B (2018) | Download PDF |
| 29 | Class 12 Chemistry Half Yearly Exam (2019) | Download PDF |
| 30 | Class 12 Chemistry Half Yearly Exam – Type 1 (2026) | Download PDF |
| 31 | Class 12 Chemistry Half Yearly Exam – Type 2 (2026) | Download PDF |
| 32 | Class 12 Chemistry Half Yearly Exam – Type 3 (2026) | Download PDF |
| 33 | Class 12 Chemistry Half Yearly Exam (2022) | Download PDF |
| 34 | Class 12 Chemistry Half Yearly Exam – V2 (2022) | Download PDF |
| 35 | Class 12 Chemistry Half Yearly – Type 2 (2019) | Download PDF |
| 36 | Class 12 Chemistry Half Yearly Exam (2018) | Download PDF |
| 37 | Class 12 Chemistry Half Yearly AKT (2019) | Download PDF |
| 38 | Class 12 Chemistry Half Yearly Exam (2020) | Download PDF |
| 39 | Class 12 Chemistry Model Paper (2026) | Download PDF |
| 40 | Class 12 Chemistry Model Paper – Set A (2019) | Download PDF |
| 41 | Class 12 Chemistry Model Paper – Set B (2019) | Download PDF |
| 42 | Class 12 Chemistry Model Paper – Set C (2019) | Download PDF |
| 43 | Class 12 Chemistry Pre-Board Exam (2020) | Download PDF |
| 44 | Class 12 Chemistry Pre-Board Exam (2019) | Download PDF |
| 45 | Class 12 Chemistry Pre-Board Exam (2025) | Download PDF |
| 46 | Class 12 Chemistry Pre-Board Exam – Type 1 (2026) | Download PDF |
| 47 | Class 12 Chemistry Pre-Board Exam – Type 2 (2026) | Download PDF |
| 48 | Class 12 Chemistry Quarterly Exam (2025) | Download PDF |
| 49 | Class 12 Chemistry Quarterly Exam (2021) | Download PDF |
| 50 | Class 12 Chemistry Quarterly Exam AKT (2019) | Download PDF |
| 51 | Class 12 Chemistry Quarterly Exam (2026) | Download PDF |
Frequently Asked Questions (FAQs)
Is the CGBSE Class 12 Chemistry syllabus reduced for this year?
The CGBSE occasionally rationalizes the syllabus. For example, chapters like Solid State or Polymers have seen changes in recent years. Always check the latest circular on the official board website (cgbse.nic.in) for the updated curriculum. However, core Organic and Inorganic chapters remain mostly unchanged.
How many years of Chemistry papers should I solve?
For optimum results, we recommend solving at least 5 to 7 years of CGBSE Chemistry papers. This gives you massive exposure to the board’s favorite IUPAC names and named reactions.
Are these papers available in Hindi or English medium?
The CGBSE provides bilingual question papers. The PDFs available for download on this page contain questions printed in both Hindi and English mediums.
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Sanjay — CGBSE Exam Expert
Sanjay has over 5 years of experience guiding Chhattisgarh board students through pattern analysis, exam strategy, and score maximization. He has analyzed thousands of CGBSE question papers to identify recurring patterns and high-weightage topics.
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