TBSE Class 10 Science Compartment 2026 is scheduled around June 28, 2026, and the 80-mark theory paper covers Chemistry, Biology, and Physics chapters drawn entirely from the NCERT curriculum.
Students appearing in the TBSE Madhyamik (Class 10) Science compartment exam 2026 need a clear understanding of chapter-wise weightage to focus their preparation on high-scoring topics. The Science paper tests concepts from three broad areas — Chemistry (Chemical Substances), Biology (World of Living), and Physics (Natural Phenomena and Effects of Current). Knowing which chapters carry the most marks helps you prioritise revision in the limited time before the exam.
- The TBSE Class 10 Science theory paper carries 80 marks; internal assessment adds 20 marks to make the total 100.
- Chemistry unit (Chemical Substances) accounts for approximately 25 marks — the highest single-unit weightage in the paper.
- Biology unit (World of Living) carries around 23 marks, with Life Processes being the most important chapter.
- Physics chapters across Units III and IV contribute approximately 25 marks combined in the theory paper.
- Students must score at least 27 marks out of 80 in theory (33% of theory marks) to meet the minimum passing threshold.
| Direct Link to TBSE Class 10 Compartment 2026 Admit Card and Result (Check Official Site) |
TBSE Class 10 Science Unit-Wise Weightage 2026
The TBSE Class 10 Science paper is divided into five units based on the NCERT curriculum. The table below shows the expected marks distribution for the 80-mark theory paper, based on previous years’ exam patterns:
| Unit No. | Unit Name | Topics Covered | Expected Marks (out of 80) |
|---|---|---|---|
| I | Chemical Substances – Nature and Behaviour | Chapters 1–5 (Chemistry) | 25 |
| II | World of Living | Chapters 6–9 (Biology) | 23 |
| III | Natural Phenomena | Chapters 10–11 (Light, Human Eye) | 12 |
| IV | Effects of Current | Chapters 12–13 (Electricity, Magnetism) | 13 |
| V | Natural Resources | Chapters 14–16 (Energy Sources, Environment, Resources) | 7 |
| Total | 80 | ||
Chemistry Chapter-Wise Weightage and Expected Questions
Chemistry carries the highest unit weightage (~25 marks) in the TBSE Class 10 Science compartment exam. Focus on writing and balancing chemical equations, properties of compounds, and reactivity trends. The five Chemistry chapters and their expected marks are listed below:
| Chapter | Chapter Name | Expected Marks | Key Topics to Revise |
|---|---|---|---|
| 1 | Chemical Reactions and Equations | 5–6 | Types of reactions, balancing equations, oxidation and reduction |
| 2 | Acids, Bases and Salts | 5–6 | pH scale, indicators, common salts, neutralisation reactions |
| 3 | Metals and Non-metals | 6–7 | Reactivity series, extraction of metals, ionic bonding |
| 4 | Carbon and its Compounds | 5–6 | Covalent bonding, functional groups, homologous series, soaps vs detergents |
| 5 | Periodic Classification of Elements | 3–4 | Mendeleev’s table, modern periodic table, periodic trends |
Expected questions from Chemistry for TBSE Class 10 Compartment 2026:
- Balance the chemical equation for the reaction of iron with steam and identify the type of reaction.
- What happens when dilute hydrochloric acid is added to zinc? Write the balanced chemical equation.
- Explain the reactivity series of metals with examples and state its significance in predicting reactions.
- What are the general properties of ionic compounds? Give two examples with their uses.
- Differentiate between soaps and detergents. Why do soaps not work effectively in hard water?
- State Mendeleev’s periodic law and list any two limitations of his periodic table.
Biology Chapter-Wise Weightage and Expected Questions
Biology (World of Living unit) contributes around 23 marks to the TBSE Class 10 Science compartment paper. Life Processes is consistently the highest-scoring chapter in this unit and must be covered thoroughly. The chapter-wise distribution for Biology is given below:
| Chapter | Chapter Name | Expected Marks | Key Topics to Revise |
|---|---|---|---|
| 6 | Life Processes | 7–8 | Nutrition, respiration, transportation and excretion in plants and animals |
| 7 | Control and Coordination | 4–5 | Nervous system, reflex arc, hormones, tropic movements in plants |
| 8 | How do Organisms Reproduce? | 5–6 | Asexual and sexual reproduction, human reproductive system, contraception |
| 9 | Heredity and Evolution | 5–6 | Mendel’s laws, chromosomes, inherited traits, Darwin’s theory of evolution |
Expected questions from Biology for TBSE Class 10 Compartment 2026:
- Draw a labelled diagram of the human heart and explain the process of double circulation.
- What is a reflex arc? Explain with a neat labelled diagram showing the pathway of nerve impulse.
- Describe the process of sexual reproduction in flowering plants, explaining the role of each floral part.
- Explain Mendel’s law of segregation with the help of a monohybrid cross between tall and dwarf plants.
- What is the difference between aerobic and anaerobic respiration? Give one real-life example of each.
- What are hormones? Name two plant hormones and state one function of each.
Physics Chapter-Wise Weightage and Expected Questions
Physics chapters across Units III and IV together carry approximately 25 marks in the TBSE Class 10 Science compartment paper. Light and Electricity are the most mark-heavy chapters and almost always feature numericals and diagram-based questions. The chapter-wise breakdown is given below:
| Chapter | Chapter Name | Expected Marks | Key Topics to Revise |
|---|---|---|---|
| 10 | Light – Reflection and Refraction | 7–8 | Mirror and lens formula, ray diagrams, refractive index, power of a lens |
| 11 | Human Eye and the Colourful World | 3–4 | Defects of vision and correction, dispersion of light, atmospheric refraction |
| 12 | Electricity | 7–8 | Ohm’s law, series and parallel circuits, electric power, heating effect of current |
| 13 | Magnetic Effects of Electric Current | 4–5 | Magnetic field, Fleming’s rules, electric motor, electromagnetic induction, generator |
Expected questions from Physics for TBSE Class 10 Compartment 2026:
- A concave mirror has a focal length of 15 cm. Find the image distance when the object is placed 30 cm in front of it using the mirror formula.
- State Ohm’s law. Draw a circuit diagram showing a 3-ohm and a 6-ohm resistor in parallel and calculate their equivalent resistance.
- What is electromagnetic induction? State Fleming’s right-hand rule and give one application.
- Explain the working of the human eye and describe how the defect of myopia is corrected using a suitable lens.
- Why does the sky appear blue during the day? Explain the phenomenon of scattering of light.
- Differentiate between an electric motor and an electric generator on the basis of energy conversion and working principle.
TBSE Class 10 Science Compartment Paper Pattern 2026
The TBSE Class 10 Science compartment paper follows the same format as the annual examination. The theory paper is of 3 hours duration and carries 80 marks. Understanding the question types helps you plan time allocation during the exam.
| Question Type | Marks per Question | Approx. Number of Questions | Approx. Total Marks |
|---|---|---|---|
| Very Short Answer (VSA) | 1 | 16 | 16 |
| Short Answer I (SA-I) | 2 | 10 | 20 |
| Short Answer II (SA-II) | 3 | 8 | 24 |
| Long Answer (LA) | 5 | 4 | 20 |
| Theory Total | 80 | ||
| Internal Assessment | 20 | ||
| Grand Total | 100 | ||
Students receive 15 minutes of reading time before the exam begins. Prepare at least one long-answer question per high-weightage chapter — LA questions at five marks each are the biggest single-question scorers in the paper.
Last-Minute Preparation Tips for High-Weightage Chapters
With the TBSE Class 10 Science compartment exam 2026 around June 28, a focused chapter-by-chapter approach will help you score passing marks and above efficiently:
- Life Processes (7–8 marks): Memorise flow charts for nutrition, respiration, transportation, and excretion. Practice labelled diagrams of the human heart, nephron, and digestive system — these are standard long-answer questions.
- Electricity (7–8 marks): Solve at least five numerical problems on Ohm’s law, equivalent resistance in series and parallel circuits, and electric power calculations. A numerical from this chapter is almost certain.
- Light – Reflection and Refraction (7–8 marks): Revise the mirror and lens formula using the correct sign convention. Draw ray diagrams for three different object positions for both concave and convex lenses.
- Metals and Non-metals (6–7 marks): Learn the reactivity series and write the properties and uses of ionic compounds. Extraction of aluminium (Hall-Heroult process) and iron (Blast Furnace) are frequently tested.
- Heredity and Evolution (5–6 marks): Draw Punnett squares for monohybrid crosses neatly. Revise Mendel’s two laws, Darwin’s theory of natural selection, and the difference between inherited and acquired traits.
- Carbon and its Compounds (5–6 marks): Focus on functional groups, IUPAC naming rules, and properties of ethanol and ethanoic acid. Understand clearly why soaps do not work in hard water.
- For chapters carrying 3–4 marks — Periodic Classification, Human Eye, and Natural Resources — prepare key definitions and one long-answer question from each. These chapters are quick marks when covered efficiently in the final days.
TBSE Class 10 Science Compartment 2026 FAQs
Ques. Which chapters have the highest weightage in TBSE Class 10 Science?
Ans. Based on previous years’ exam patterns, Life Processes (Biology), Light – Reflection and Refraction, and Electricity (Physics) each carry an expected 7–8 marks out of 80 in the theory paper, making them the highest-weightage chapters to prioritise.
Ques. What are the passing marks for TBSE Class 10 Science Compartment 2026?
Ans. Students need to score at least 33 out of 100 overall to pass TBSE Class 10 Science compartment exam 2026. The minimum passing threshold in the theory paper is 33% of 80 marks, which is approximately 27 marks.
Ques. How many chapters are there in TBSE Class 10 Science?
Ans. There are 16 chapters in TBSE Class 10 Science based on the NCERT curriculum — Chemistry covers Chapters 1 to 5, Biology covers Chapters 6 to 9, Physics covers Chapters 10 to 13, and Natural Resources covers Chapters 14 to 16.
Ques. Is the TBSE Class 10 compartment paper the same as the main exam paper?
Ans. Yes, the TBSE Class 10 compartment paper follows the same pattern as the annual exam — an 80-mark theory paper with VSA, SA-I, SA-II, and LA type questions drawn from the same NCERT syllabus and unit-wise weightage distribution.
Ques. Which unit carries the most marks in TBSE Class 10 Science?
Ans. Unit I — Chemical Substances (Chemistry) carries the most marks at approximately 25 out of 80 in the theory paper. Students should give all five Chemistry chapters careful attention when preparing for the compartment exam.
Ques. Where can students download the TBSE Class 10 compartment admit card 2026?
Ans. The TBSE Class 10 compartment admit card 2026 can be downloaded from the official TBSE website at tbse.tripura.gov.in. Log in with your roll number and registration details to access and save your hall ticket.
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