Create CBSE Class 12 Chemistry board-pattern question papers in seconds — fully aligned with the 2025-26 examination format. Every paper covers Physical, Inorganic, and Organic Chemistry with all sections (A to E), 50% competency-based questions, case study problems, balanced chemical equations, and step-wise marking schemes with answer keys.
Designed for Chemistry (Code 043) as per the rationalized CBSE 2025-26 syllabus. Trusted by 5,000+ CBSE schools, coaching centres, and Chemistry teachers across India.
No sign-up required • PDF & DOCX download • Answer key included
The CBSE Class 12 Chemistry Question Paper Generator by SchoolDeck is a free AI-powered tool that helps teachers, tutors, and students create board-pattern question papers for Chemistry (Code 043) within minutes — without spending hours selecting questions, checking blueprint compliance, or typesetting chemical equations.
Whether you need a full 70-mark board exam mock paper, a chapter-wise unit test on Electrochemistry or Coordination Compounds, a half-yearly examination paper covering Physical and Inorganic Chemistry, or quick revision worksheets for Organic reactions — this generator produces professionally formatted papers that exactly match the CBSE 2025-26 examination blueprint.
Every generated paper includes a detailed step-wise marking scheme with balanced chemical equations, IUPAC names, and reaction mechanisms — making it ideal for both practice and formal assessment. The tool accurately renders structural formulas, coordination compound notations, electrochemical cell representations, and complex organic reaction pathways that are notoriously difficult to type manually.
Official 70-Mark Theory Paper Blueprint — Unit-Wise Weightage
| Unit No. | Unit Name | Key Topics | Marks |
|---|---|---|---|
| Physical Chemistry (~23 Marks) | |||
| I | Solutions | Types of Solutions, Concentration Terms, Raoult's Law, Colligative Properties, van't Hoff Factor, Abnormal Molar Masses | 07 |
| II | Electrochemistry | Electrolytic & Galvanic Cells, Nernst Equation, Cell EMF, Conductance, Kohlrausch's Law, Electrolysis, Batteries, Fuel Cells, Corrosion | 09 |
| III | Chemical Kinetics | Rate of Reaction, Order & Molecularity, Integrated Rate Equations, Half-Life, Arrhenius Equation, Activation Energy, Collision Theory | 07 |
| Inorganic Chemistry (~19 Marks) | |||
| IV | The p-Block Elements | Group 15: N₂, NH₃, HNO₃, Phosphorus allotropes. Group 16: O₂, SO₂, H₂SO₄. Group 17: Halogens, HF-HI. Group 18: Noble Gases | 08 |
| V | d- and f-Block Elements | Transition Metals, Electronic Configurations, Oxidation States, Magnetic Properties, Colour, Interstitial Compounds, Alloy Formation, Lanthanides & Actinides | 05 |
| VI | Coordination Compounds | Werner's Theory, IUPAC Nomenclature, Isomerism, Valence Bond Theory, Crystal Field Theory, Colour, Magnetic Properties, Importance in Biology & Industry | 06 |
| Organic Chemistry (~28 Marks) | |||
| VII | Haloalkanes and Haloarenes | Classification, IUPAC Nomenclature, SN1 & SN2, E1 & E2, Optical Isomerism, Polyhalogen Compounds, Freons, DDT | 06 |
| VIII | Alcohols, Phenols and Ethers | IUPAC Names, Preparation, Physical & Chemical Properties, Lucas Test, Acidic Nature of Phenols, Williamson Synthesis, Clemmensen Reduction | 06 |
| IX | Aldehydes, Ketones & Carboxylic Acids | Nucleophilic Addition, Aldol Condensation, Cannizzaro, Tollens'/Fehling Test, Carboxylic Acid Derivatives, Hell-Volhard-Zelinsky | 08 |
| X | Amines | Classification, Basicity, Preparation (Gabriel Synthesis, Hofmann Degradation), Diazonium Salts, Coupling Reactions, Electrophilic Substitution | 06 |
| XI | Biomolecules | Carbohydrates (Mono/Di/Polysaccharides), Proteins (Structure, Denaturation), Enzymes, Vitamins, Nucleic Acids (DNA, RNA), Hormones | 08 |
| Total Theory Examination | 70 | ||
| Practical Examination | 30 | ||
| Grand Total | 100 | ||
Source: CBSE Academic Session 2025-26 Curriculum for Chemistry (Code 043). Organic Chemistry carries the highest weightage of ~28 marks (40%) in the theory paper.
The SchoolDeck generator precisely follows this section structure in every generated paper
14 MCQs + 2 Assertion-Reasoning questions. Tests conceptual understanding across Physical, Inorganic, and Organic Chemistry. Includes questions on colligative properties, cell EMF, reaction order, coordination number, IUPAC names, and functional group identification. No internal choice in this section.
5 questions with internal choice. Covers direct application — writing balanced equations, naming coordination compounds, comparing boiling points using Raoult's Law, writing the IUPAC name of an organic compound, and calculating rate constants.
7 questions with internal choice. Multi-step problems involving electrochemical cell calculations (Nernst equation), reaction mechanism steps (SN1/SN2), isomerism in coordination compounds, distinction tests between organic functional groups, and explaining anomalous properties of p-Block elements.
2 long-form questions with internal choice. Involves multi-step synthesis problems, complete derivation of van't Hoff factor with numerical, detailed comparison of properties across a homologous series, or a comprehensive account of transition metal chemistry with equations and explanations.
3 passage-based case study questions with sub-parts. Real-world applications: industrial use of electrochemical cells (corrosion & batteries), environmental impact of halocarbons and ozone depletion, enzyme kinetics and drug action in Biomolecules. Critical for NEP 2020 competency-based scoring and HOTS marks.
| Section | Questions | Marks Each | Total Marks | Internal Choice |
|---|---|---|---|---|
| A — MCQ + AR | 16 | 1 | 16 | No |
| B — VSA | 5 | 2 | 10 | Yes |
| C — SA | 7 | 3 | 21 | Yes |
| D — LA | 2 | 5 | 10 | Yes |
| E — Case Study | 3 | 4 | 12 | Yes (sub-parts) |
| Total | 33 Questions | 70 Marks | ||
Duration: 3 Hours | Maximum Marks: 70 (Theory) + 30 (Practical) = 100
4 simple steps — no sign-up needed to get started
Choose CBSE → Class 12 → Chemistry (043). The tool auto-loads the official 2025-26 rationalized syllabus, chapter list, and marks blueprint.
Select full syllabus or specific chapters — for example, only Organic Chemistry (Ch 7–11), or Physical Chemistry only (Ch 1–3). Set difficulty as Easy, Medium, Hard, or Mixed.
Select Board Exam Pattern (full 70-mark), Pre-Board, Unit Test, Half Yearly, or Chapter Test. The AI automatically applies the correct section structure and marks allocation.
Click Generate. Preview the paper with all chemical equations and marking scheme on screen. Download as PDF or DOCX — with or without the answer key.
Our question bank covers every chapter from both NCERT Part I & Part II textbooks as per the rationalized 2025-26 syllabus
Built specifically for the complexity and notation demands of Class 12 board-level Chemistry
Perfectly formatted balanced equations with state symbols, reaction conditions (Δ, catalyst, pressure), structural formulas for organic compounds, coordination compound notation like [Co(NH₃)₆]³⁺, and electron-dot structures. No broken symbols in PDF output.
Automatically includes HOTS questions — application, analysis, and evaluation-level problems as mandated by CBSE for 2025-26. Includes real-world scenarios like industrial electroplating, drug mechanism in Biomolecules, and environmental Chemistry.
Every answer is broken down with marks-per-step allocation — including partial marks for correct reagent but wrong product, correct formula but calculation error — exactly matching CBSE board evaluation standards.
Generate papers focused exclusively on Physical, Inorganic, or Organic Chemistry — perfect for topic-wise revision tests, coaching batch tests, and concept-building worksheets.
Every paper respects the official unit-wise marks distribution. The AI ensures Organic Chemistry gets its ~28 marks, Physical gets ~23 marks, and Inorganic gets ~19 marks — automatically, without teacher intervention.
Curated real-world case studies — lithium-ion batteries for electrochemistry, catalytic converters for Chemical Kinetics, ozone layer depletion for Haloalkanes, enzyme inhibitors for Biomolecules — all updated for the latest CBSE patterns.
Generate multiple unique papers from the same syllabus selection. Each paper has different questions with the same difficulty and blueprint — ideal for Set A/B/C/D pre-board papers and parallel batch tests.
Download question paper and answer key separately as PDF or DOCX. Add your school name, logo, roll number field, and custom general instructions before printing.
Save 3–4 hours per paper. Stop manually typing chemical equations. Generate unit tests, half-yearly papers, and pre-board mocks in minutes with properly balanced equations and IUPAC names.
Create standardized, audit-ready chemistry papers across all sections. Generate Set A, B, C, D simultaneously with the same difficulty level and blueprint compliance.
Practice unlimited board-pattern mock papers with detailed solutions. Understand the step-wise marking to maximize partial marks and avoid losing marks on correct reactions written incorrectly.
SchoolDeck also helps generate lab-based questions and documentation for the 30-mark practical component:
10 Marks — Volumetric analysis, salt analysis, functional group identification
10 Marks — Lab notebook, observations, viva voce questions
10 Marks — Chemistry project on real-world chemical applications
As per CBSE's mandate for 2025-26, approximately 50% of questions in the Class 12 Chemistry board paper must be competency-based — testing the ability to apply chemistry concepts to real-world and unfamiliar situations, rather than simply reproducing memorized facts or reactions.
Examples of competency-based questions in Class 12 Chemistry include:
SchoolDeck's AI generator automatically maintains the 50% competency-based ratio in every paper, ensuring your students encounter the right type of questions during practice to score well in the actual board examination.
Everything you need to know about generating CBSE Class 12 Chemistry question papers
The CBSE Class 12 Chemistry (Code 043) theory paper carries 70 marks: Physical Chemistry (~23 marks — Solutions, Electrochemistry, Chemical Kinetics), Inorganic Chemistry (~19 marks — p-Block, d-f Block, Coordination Compounds), and Organic Chemistry (~28 marks — Haloalkanes, Alcohols, Aldehydes/Ketones/Carboxylic Acids, Amines, Biomolecules). The Practical Examination carries 30 marks making the grand total 100.
Yes. Every board-pattern Chemistry paper includes 3 Case Study / Source-Based questions in Section E (3 × 4 = 12 marks). These are passage-based, real-world application problems with sub-parts covering industrial applications of electrochemistry, environmental chemistry (ozone depletion, green chemistry), enzyme kinetics, and polymer chemistry — all as per official CBSE 2025-26 guidelines.
The generator uses professional chemical notation rendering to display perfectly balanced equations with state symbols and reaction conditions, structural formulas for organic compounds, IUPAC names, coordination compound notation (e.g., [Fe(CN)₆]³⁻), electrochemical cell diagrams, and molecular orbital representations. Everything renders correctly in both the on-screen preview and downloaded PDF.
Absolutely. You can filter by single or multiple chapters. For example, generate a pure Organic Chemistry test (Chapters 7–11), or a Physical Chemistry unit test (Chapters 1–3), or combine Electrochemistry + Chemical Kinetics for a focused revision sheet. The AI auto-adjusts the section distribution and total marks based on your selection.
The paper has 5 sections totaling 33 questions for 70 marks: Section A — 16 MCQs/AR questions (16 marks), Section B — 5 Very Short Answer questions (10 marks), Section C — 7 Short Answer questions (21 marks), Section D — 2 Long Answer questions (10 marks), Section E — 3 Case Study questions (12 marks). Sections B through E all have internal choice options. Duration: 3 hours.
Yes, SchoolDeck offers a free tier that lets teachers and students generate CBSE Class 12 Chemistry question papers with complete answer keys and step-wise marking schemes. Premium plans unlock unlimited generation, custom school watermarking and branding, bulk generation of multiple sets, and priority support for exam committees.
As per CBSE's circular for 2025-26, approximately 50% of the total questions are competency-based — testing application, analysis, inference-drawing, and higher-order thinking skills (HOTS). SchoolDeck automatically maintains this ratio in every generated Chemistry paper, including in Section E case studies and select questions from Sections B, C, and D.
Yes. Section A of every board-pattern paper includes 2 Assertion-Reasoning (AR) questions worth 1 mark each, as mandated by CBSE. These test deeper conceptual understanding — for example: "Assertion: SN1 reactions proceed faster with tertiary alkyl halides. Reason: Tertiary carbocations are more stable due to hyperconjugation and inductive effects." The generator creates unique AR pairs across all Chemistry topics.
Yes. The generator supports multiple exam formats: Full Board Exam (70 marks, 3 hours), Pre-Board Mock (70 marks), Half Yearly (35 marks, first-half syllabus — Physical + Inorganic Chemistry), Quarterly Test, Unit Test (20–25 marks), and Chapter-wise Worksheets. Each format auto-applies the appropriate section structure, time limit, and chapter coverage.
Yes. Every generated marking scheme follows step-wise marks allocation exactly as per CBSE board evaluation — including where partial marks are awarded. For example, in a 3-mark reaction question: 1 mark for correct reagent, 1 mark for balanced equation, 1 mark for correct product/conditions. This helps Chemistry teachers evaluate consistently and helps students understand how to maximize their score.
Stop spending hours typing chemical equations and checking blueprints manually.
Join 5,000+ CBSE schools using SchoolDeck to create board-pattern Chemistry question papers in minutes — with perfectly formatted equations, balanced reactions, and step-wise marking schemes.
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