Your Class 10 Science template still uses Sections A-E by marks. CBSE switched to subject sections for 2026.

CBSE restructured Class 10 Science (Subject Code 086) for 2025-26. Earlier paper used marks-based 5-section structure (A-E by question type). NEW structure has THREE subject-specific sections — Section A: Biology 30 marks (highest weightage), Section B: Chemistry 25 marks, Section C: Physics 25 marks. Total 39 questions, 80 theory + 20 internal. All compulsory; internal choice within each section. NEP 50/20/30 blueprint. Class 10 Science board exam date: February 25, 2026. Platform generates in this 2025-26 structure by default.

Class 12 Science is split into separate subjects after PCB stream selection — Physics (Code 042) with 70 theory + 30 practical, Chemistry (Code 043) with 70 theory + 30 practical (33 questions across Sections A-E covering Solutions, Electrochemistry, Kinetics, d/f-block, Coordination Compounds, Haloalkanes, Alcohols, Aldehydes, Amines, Biomolecules), Biology (Code 044) with 70 theory + 30 practical. All three are 3-hour theory exams. NEP 50/20/30 blueprint. Platform generates separate papers for each subject.

Class 10 Science (Code 086) = UNIFIED paper with three subject-specific sections. One paper, three sections, 80 theory marks total. Generated as a single PDF with Biology + Chemistry + Physics sections. Class 11 Science = foundation year, students study Physics/Chemistry/Biology separately but per school internal pattern. Class 12 Science = SEPARATE PAPERS by subject. Physics (042), Chemistry (043), Biology (044) are each independent 3-hour exams with their own section structures. Platform handles all three workflows.

Yes. Dedicated chemical equation rendering — subscripts and superscripts stay intact in PDF export (no Word equation editor breakage). Examples: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP, 2H₂ + O₂ → 2H₂O, complex organic mechanisms (SN1/SN2), inorganic redox equations with oxidation states. Molecular structures, valency states, balanced equations all render at textbook precision. Structural formulas for organic chemistry (benzene rings, functional groups, stereochemistry projections) supported.

Yes. HD vector diagram library covers — Physics: electric circuits (resistor, capacitor, battery, voltmeter, ammeter symbols), ray diagrams in optics (convex lens, concave mirror, prism refraction), magnetic field lines, free-body diagrams. Chemistry: structural formulas (benzene rings, functional groups), organic mechanisms with electron pair movement, periodic table extracts, MO diagrams. Biology: human organ systems (heart with chambers, kidney with nephron, digestive, respiratory, reproductive), plant anatomy cross-sections, cell organelles, DNA structures, ecology cycles. One-click insertion, scales perfectly at any print size.

A Physics answer key isn't the final answer alone — CBSE evaluators award marks per step. Platform generates the step marking rubric automatically. For a 5-mark Physics numerical (e.g., calculate force using F = ma) — 1 mark for writing correct formula, 0.5 marks for identifying given values, 2 marks for correct substitution, 1 mark for intermediate calculation, 0.5 marks for final answer with correct SI unit. Same step-marking format CBSE board evaluators use. No manual rubric writing.

Dynamic cloning generates multiple paper versions — preventing copying without requiring 3 different papers. AI retains identical difficulty, syllabus coverage, question structure; changes (1) question order within sections, (2) numerical values in calculation-based questions. Set A "F = 50 N applied for 4 seconds" becomes Set B "F = 120 N applied for 3 seconds" with new correct answer auto-calculated in marking scheme. Question structurally identical, same concept, same marks. Particularly useful for Physics; less common for Biology (conceptual questions).

Yes. NEP 2020 requires 50% competency-based for Class 9-12. For Class 10 Science (Code 086), CBSE sample paper places 3 Case Study questions in specific chapters (e.g., Light: Reflection and Refraction, Periodic Classification, Life Processes). Platform applies case-study placement automatically. Assertion-Reasoning questions test analytical evaluation — both Assertion and Reason are NCERT-derived; students determine if both correct and whether Reason explains Assertion. Common in Biology (Life Processes, Heredity) and Physics (Electromagnetism).

NCERT textbooks (CBSE mandatory base — 90%+ of Class 10 questions historically from NCERT). Additional sources tagged by chapter and difficulty — Lakhmir Singh & Manjit Kaur (Class 9-10 Physics and Chemistry numericals), HC Verma 'Concepts of Physics' (Class 11-12 Physics deeper applications), Pradeep's Chemistry (Class 11-12 detailed application questions), Trueman's Biology (Class 11-12 NEET-aligned), past 10 years of CBSE board papers. Source mix configurable — 70% NCERT + 30% Lakhmir Singh for Class 10 internal, 100% past board papers for Class 10 mock, 50% NCERT + 50% HC Verma for Class 12 Physics chapter test.

The AI Question Paper Generator hub covers all subjects at directory level. This Science-specific page goes deep into Science specifications — Class 10 Science Code 086 NEW 3-section subject structure, Class 12 separate subject codes (042 Physics, 043 Chemistry, 044 Biology with 70 theory + 30 practical), HD diagram library, balanced chemical equation rendering, Physics step-by-step numerical marking, Set A/B/C value rotation, NCERT + Lakhmir Singh + HC Verma source mix. Different from NEET sibling page which focuses on coaching institutes and the NEET UG entrance pattern; this page focuses on school CBSE board preparation.