Here are the NIOS 12th Important Questions for 2025–2026 — subject-wise, simple, and perfect for your board preparation.Useful for last-minute revision + high-weightage topics)

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📘 NIOS 12th Important Questions 2025–2026
Based on previous years + expected board exam pattern

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✅ 1. English (302) – Important Questions
Prose
1. “The Tiger in the Tunnel” – Character of Baldeo

2. “The Portrait of a Lady” – Describe the bond between the author and his grandmother

3. “The Ailing Planet: The Green Movement’s Role” – Explain sustainable development

4. “The Lost Child” – Theme and message of the story


Poetry
1. “An Elementary School Classroom in a Slum” – Poet’s message

2. “Keeping Quiet” – Summary + poetic devices

3. “My Mother at Sixty-Six” – How does the poet express fear of aging?


Writing Skills
Notice writing (school event, lost & found)
Article writing (health, environment, technology)
Letter to the editor (social issue)
Report writing (accident, celebration, competition)


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✅ 2. Physics (312) – Important Questions
1. State Newton’s laws of motion with examples.

2. Derive the expression for escape velocity.

3. Explain Ohm’s law + V–I graph.

4. Define wavefront. Explain Huygens’ principle.

5. Explain reflection and refraction using ray diagrams.

6. Derive lens formula.

7. Explain AC generator with diagram.

8. State and explain Kirchhoff’s laws.

9. What is Doppler effect? Give applications.



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✅ 3. Chemistry (313) – Important Questions
1. Explain Mendeleev’s periodic table + modern periodic law.

2. Describe ionic and covalent bonds with examples.

3. Explain electrolytic dissociation.

4. Properties of acids, bases, and salts.

5. Describe electrolysis of water.

6. Explain saponification.

7. Draw the structure of benzene + properties.

8. Explain Green chemistry.



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✅ 4. Biology (314) – Important Questions
1. Structure and function of the cell.

2. Differences between mitosis and meiosis.

3. Photosynthesis – light reaction & dark reaction.

4. Human digestive system – diagram + functions.

5. Blood groups and Rh factor.

6. Modes of reproduction in plants.

7. Communicable diseases – causes & prevention.

8. Mendel’s laws of inheritance.



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✅ 5. Mathematics (311) – Important Questions
1. Matrices – types, operations, inverse by adjoint method.

2. Determinants – properties and evaluation.

3. Probability – basic definitions + simple problems.

4. Derivative of algebraic, trigonometric functions.

5. Integration – basic rules, definite integrals.

6. Vectors – magnitude, direction, dot & cross product.

7. Linear equations in two variables.

8. Coordinate geometry – distance, section, slope.



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📘 Exam Pattern Quick Overview (NIOS 12th)
Theory exam: 80 marks
Internal assessment (TMA): 20 marks
Passing marks: 33%
MCQs + short answers + long answers
Questions come from all chapters, but previous-year questions repeat often



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