Jkbose 10th Class Science Guess Paper 2026 For Bi-Annual Private 2026

Jkbose 10th Class Science Guess Paper 2026 For Bi-Annual Private 2026

The JKBOSE 10th Class Science Guess Paper 2026 for the Bi-Annual Private Examination has been prepared by selecting the most important and expected questions from the latest syllabus, previous year papers, and high-weightage topics. This guess paper is designed to help students focus on key concepts and improve their chances of scoring good marks in the upcoming examination.

Biology Portion 

Chapter 1 – Life Processes

1. Differentiate between autotrophic and heterotrophic nutrition.

2. What is the role of acid in our stomach?

3. Describe the process of digestion in human beings. Draw labelled diagram of human digestive system.

4. How are small intestines designed to absorb digested food?

5. How are oxygen and carbon dioxide transported in human beings?

6. How are water and minerals transported in plants?

7. What is the role of saliva in digestion of food?

8. Differentiate between aerobic and anaerobic respiration.

9. Describe double circulation in human beings. Why is it necessary?

10. Explain the structure of nephron.

11. Describe the structure and function of the human heart.

12. Illustrate the human respiratory system.

13. Draw and label the human excretory system.

Chapter 2 – Control and Coordination

1. What happens at the synapse between two neurons?

2. What are plant hormones? Define tropism and its various types.

3. How do auxins promote the growth of a tendril around a support?

4. Why is the use of iodised salt advisable?

5. How does chemical coordination take place in animals?

6. How does our body respond when adrenaline is secreted?

7. Why are some patients of diabetes treated with insulin injections?

8. Draw the structure of neuron.

9. How are involuntary actions different from reflex actions?

10. Draw and label the structure of human brain.

11. Draw reflex arc pathway.

Chapter 3 – How do Organisms Reproduce?

1. What is asexual reproduction? Explain its types.

2. What is binary fission? Explain with example.

3. Give an example of multiple fission.

4. Differences between binary fission and multiple fission.

5. Draw labelled diagram of male and female reproductive systems.

6. How is pollination different from fertilisation?

7. Advantages of sexual reproduction over asexual reproduction.

8. Functions performed by testis in human beings.

9. Why does menstruation occur?

10. Draw labelled longitudinal section of flower.

11. What is vegetative propagation? Explain methods with examples.

Chapter 4 – Heredity and Evolution

1. How do Mendel’s experiments show traits may be dominant or recessive?

2. How do Mendel’s experiments show traits are inherited independently (Law of Independent Assortment)?

3. How is the sex of a child determined in humans?

4. Explain Mendel’s monohybrid cross with Punnett square.

Chapter 5 – Our Environment

1. Why are some substances biodegradable and some non-biodegradable?

2. What are trophic levels? Give an example of food chain and state trophic levels.

3. What is the role of decomposers in an ecosystem?

4. What is ozone? How does it affect ecosystem?

5. What is biological magnification? Will it differ at different trophic levels?

6. What will happen if we kill all organisms in one trophic level?

7. What is ecosystem? What are its components?

Physics Portion

Chapter1 – Light (Reflection & Refraction)

1. A concave mirror produces three times magnified real image of an object placed at 10 cm in front of it. Where is the image located?

2. Explain refraction and its laws. What are the conditions of no refraction?

3. Refraction through a rectangular glass slab.

4. Define Power of a lens. What is its S.I. unit and define that unit.

5. The refractive index of diamond is 2.42. What is the meaning of this statement?

6. A concave lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw ray diagram.

7. The magnification produced by a plane mirror is +1. What does this mean?

8. An object 5 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image, its nature and size.

9. Example 1.1, 1.2 and 1.4 (in NCERT/JKBOSE Textbook).

Chapter2 – The Human Eye and the Colourful World

1. Explain the construction and working of human eye.

2. What is meant by power of accommodation of the eye?

3. Explain Myopia, Hypermetropia and Presbyopia. How are these defects corrected? Illustrate with diagrams.

4. Why do stars twinkle but planets do not?

5. Why does the Sun look red at sunrise and sunset? Why is the Sun visible two minutes before actual sunrise and two minutes after actual sunset?

6. Why does the sky appear dark instead of blue to astronauts?

7. Why is red colour used as a traffic signal? Why not other colours?

8. Explain dispersion of light. How is a rainbow formed?

9. Draw and label the structure of the Human Eye.

Chapter 3 – Electricity

1. What is electric charge? Define its S.I. unit.

2. What is potential difference?

3. Define one volt.

4. Explain Ohm’s Law and give its experimental verification. What are the conditions necessary for the law to hold true?

5. Calculate the number of electrons in 1 coulomb of charge.

6. Advantages of parallel circuits over series circuits.

7. Calculate resultant resistance when resistances are connected in parallel and series.

8. What is resistance? On what factors does it depend? Explain briefly.

9. An electric motor takes 5 A from a 220 V line. Determine the power of the motor and the energy consumed in 2 h.

10. Compute the heat generated while transferring 96,000 C of charge in one hour through a potential difference of 50 V. (Example 3.12, Textbook).

Chapter4 – Magnetic Effects of Electric Current

1. Properties of magnetic field lines.

2. Oersted’s experiment. Rules to find direction of magnetic field.

3. Magnetic field due to a current carrying solenoid.

4. Force experienced by a current carrying conductor placed in a magnetic field – “kicking wire experiment”.

5. Fleming’s left-hand rule.

6. Live wire, neutral wire and earth wire.

7. Why does a compass needle get deflected when placed near a bar magnet?

8. Why do two magnetic field lines not intersect?

9. What is the function of earth wire?

10. Name two safety measures commonly used in electric circuits.

Chemistry Portion

Chapter1 – Chemical Reactions and Equations

1. What is a balanced chemical equation? Why should chemical equations be balanced?

2. Balance the following chemical equations:

HNO₃ + Ca(OH)₂ → Ca(NO₃)₂ + H₂O

NaOH + H₂SO₄ → Na₂SO₄ + H₂O

NaCl + AgNO₃ → AgCl + NaNO₃

BaCl₂ + H₂SO₄ → BaSO₄ + HCl

3. Write the balanced chemical equations for the following reactions:

Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water

Zinc + Silver nitrate → Zinc nitrate + Silver

Aluminium + Copper chloride → Aluminium chloride + Copper

Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride

4. What are displacement reactions? Differentiate between combination and decomposition reactions.

5. What do you mean by rusting? What are the methods to prevent rusting of iron?

6. Define oxidation and rusting.

Chapter2 – Acids, Bases and Salts

1. Why does an aqueous solution of acid conduct electricity?

2. Write an equation to show the reaction between Plaster of Paris and water.

3. What is Plaster of Paris? Write its chemical formula.

4. What are the chemical properties of acids?

5. Plaster of Paris should be stored in a moisture-proof container. Explain why.

6. What is a neutralisation reaction? Give two examples.

7. Write a short note on washing soda and baking soda. Give their important uses.

8. What is bleaching powder? How is it prepared? Write its properties.

9. Define: pH scale, alkali, aqua regia.

Chapter3: Carbon and its Compounds

1. What do you mean by allotropy? Differentiate between diamond and graphite.

2. What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?

3. What will be the formula & electron dot structure of Cyclopentane?

4. What is a homologous series? What are the different characteristics of a homologous series?

5. How is ethanol prepared? What are the physical and chemical properties of ethanol?

6. Define: oxidation and rusting.

7. How would you distinguish between an alcohol & carboxylic acid?

8. Explain the mechanism of cleaning action of soap.

9. Define the following:

Functional groups

Hydrogenation

Denatured alcohol

Covalency

Chapter4 – Metals and Non-metals

1. Explain the meanings of malleable and ductile.

2. Why is sodium kept immersed in kerosene oil?

3. Define: (a) Mineral (b) Ore (c) Gangue.

4. What are amphoteric oxides? Give two examples.

5. Explain the process of metallurgy of moderately reactive metals (Zn, Pb, Fe). Differentiate between calcination and roasting.

6. Differentiate between metals and non-metals on the basis of their physical and chemical properties.

7. Define: Electrolytic refining and Electrolytic reduction.

BEST of luck Dear Students ✅