2026 SEBA/ASSEB Class 10 General Science Question Paper | HSLC Previous Year Paper

2026 SEBA/ASSEB HSLC Class 10 General Science Previous Year Question Paper – Assam Board Exam

Class 10 General Science , 2026 Question Paper

                             SECTION = A 

Choose the correct answer :                                           1 × 45 = 45

1. The focal length of the eye lens increases, when eye muscles are –

(a) relaxed and lens becomes thinner .     (b) contract and lens becomes thicker .

(c) relaxed and lens becomes thicker .      (d) contract and lens becomes thinner .

2. If a virtual erect and enlarged image is formed by a lens, then which of the following statement is correct ?

(a) It is concave lens and the object is placed between optical centre and focus of the lens.

(b) It is convex lens and the object is placed between focus and the centre of curvature of the lens.

(c) It is concave lens and the object is placed between focus and the centre of curvature of the lens.

(d) It is convex lens and the object is placed between optical centre and focus of the lens.

3. Fill up the gap :

......................... is the process of using waste material to create new products.

(a) Reusing     (b) recycling     (c) Reducing      (d) Composting

4. A positive charged particle projected towards west is deflected towards north of a magnetic field. The direction of magnetic field is –

(a) towards east    (b) upward    (c) towards south    (d) downward

5. An object of size 4 cm height is placed in between centre of curvature and focus of a concave mirror of focal length 10 cm . The nature and size of the image will be –

(a) real, inverted  and bigger than 4 cm.       (b) real, inverted  and smaller than 4 cm.

(c) virtual, erect and bigger than 4 cm.         (d) virtual, erect and smaller than 4 cm.

6. Match the following column and choose the correct option :

	A		B
(i) (ii) (iii)	Chipko andolan Amrita devi Bishnoi Narmada Bachao Andolan	(p) (q) (r)	Khejrali village Sardar Sarovar Dam Reni village

Options :

(a) (i) → (q) , (ii) → (p) , (iii) →(r)   (b) (i) → (r) , (ii) → (q) , (iii) →(p)

(c) (i) → (r) , (ii) → (p) , (iii) →(q)    (d) (i) → (p) , (ii) → (r) , (iii) →(q)

7. Which one is not a factor of abiotic component of an eco-system ?

(a) Rainfall    (b) Temperature    (c) Sunlight      (d) Insects

8. Which option explains the disadvantage of using fossil fuel as energy sources ?

(a) It releases harmful gases into the atmosphere when burn.      (b) It is extracted from deep inside the earth.

(c) It is uses oxygen in the process of burning .                                  (d) It is difficult to transport.

9. The average value for the amount of organic matter that is present at each step and reaches the next level of consumers

(a) 100%       (b) 10%          (c) 1%         (d) 0.1%

10. Which of the following is a conventional as well as non-renewable source of energy ?

(a) Bio- mass    (b) Wind energy    (c) Hydro power plant    (d) Fossil fuel

11.  Pancreatic juice contains digestive enzymes for breaking down of

(a) Proteins and carbohydrates only.     (b) Proteins and fats only

(c)  Carbohydrates  and fats only            (d) Proteins , fats and carbohydrates   

12. Find out the name of the organ of human body which filters the waste and excess fluid from the blood .

(a) Heart      (b) Lung       (c) Kidney      (d) Small intestine

13. Match the organs in the Column-I with their functions in Column-II and select the correct option given below :

	Column – I		Column – II
(i) (ii) (iii) (iv)	Heart Arteries and veins RBC Platelets	(P) (Q) (R) (S)	Blood transporting pipes in human Clotting of blood Pumping organ Carrier of oxygen

Options :

(a) (i) → (R) , (ii) → (S) , (iii) → (P) , (iv) → (Q)

(b) (i) → (R) , (ii) → (P) , (iii) → (S) , (iv) → (Q)

(c) (i) → (S) , (ii) → (P) , (iii) → (Q) , (iv) → (R)

(d) (i) → (R) , (ii) → (Q) , (iii) → (P) , (iv) → (S)

14. The breakdown of pyruvate to release carbon dioxide, water and energy takes place  in the cell’s :

(a) cytoplasm     (b) mitochondria    (c) chloroplast      (d) nucleus

15. Which of the following statement is not correct regarding the role of stomata in plants ?

(a) Gaseous exchange that is necessary for the process of photosynthesis takes place through the stomata.

(b) Transpiration is controlled by the opening and closing of stomata.

(c) Stomata usually remains open during the day.

(d) Plants close their stomata to reduce water loss during dehydration.

16. A multi-cellular organism that reproduces by the process of budding is –

(a) Plasmodium      (b) Yeast     (c) Hydra         (d) Planaria

17. The figure given below shows the female reproductive organs of a plant . Name the structure that receives the pollen grains from the anther of stamen (male reproductive organ) during pollination ?

Photo

(a) P     (b) Q      (c) R      (d) S

18. The exchange of genetic material takes place in –

(a) Vegetative reproduction     (b) Asexual reproduction  (c) Sexual reproduction   (d) Budding

19. The shedding off of matured leaves and fruits from plants is triggered by the hormone –

(a) Gibberelin     (b) Abscisic acid        (c) Auxin        (d) Cytokinin

20. The correct order for a simple reflex arc, like touching a hot object is –

P. Impulse travels in motor fibre.

Q. Impulse travels in sensory fibre.

R. Effector organ stimulated

S. Impulse crosses synapse.

(a) Q → S → P →R     (b) P → R → Q → S  (c) R → S → P →Q    (d) Q → S → R →P  

21.

Photo

Which type of movement shown by the plant in the above picture ?

(a) Phototropism      (b) Geotropism     (c) Hydrotropism     (d) Chemotropism

22. Which of the following is not a part of the female reproductive system in human beings

(a) Ovary     (b) Uterus      (c) Vas deferens     (d) Fallopian tube

23. Offspring produced through asexual reproduction show more similarity among themselves because :

(i) Asexual reproduction involves both father and mother.     (ii) Asexual reproduction involves gametes.

(iii) Asexual reproduction involves only one parents.               (iv) Asexual reproduction does not involves gametes .

(a) (i) and (ii)     (b) (i) and (iii)    (c) (ii) and  (iv)     (d) (iii) and (iv)

24. A pea plant with round and green seeds (RRyy) is crossed with an another pea plant with wrinkled and yellow seeds (rrYY) . What would be the nature of the seeds in the first filial generation (  generation) ?

(a) round and green (RRyy)    (b) Wrinkled and green (rryy)  (c) Round and yellow (RrYy)    (d) Wrinkled and yellow (rrYY)

25. Which of the following hormone is synthesized with the help of Iodine ?

(a) Adrenaline      (b) Auxin       (c) Thyroxine     (d) Insulin

26. What happens when ethanol is heated with excess concentrated sulphuric acid ?

(a) Two statements are given in the question below as Assertion (A) and Reason (R). Read the statements and choose the correct option :

Assertion (A): When gas is passed through lime water for a long time, the solution first milky and then becomes colourless.

Reason (R) : Lime water first change into calcium carbonate which then changes into calcium-bicarbonate.

(a) Both (A) and (R) are true, but (R) is not the correct explanation of (A).

(b) Both (A) and (R) are true, but (R) is the correct explanation of (A).

(c) (A) is true, (R) is false.     (d) (A) is false , (R) is true .

28. Which of the following reaction is used in black and white photography ?

(a)                               (b)    

(c)            (d)   

29. The correct increasing order of atomic radius of the elements in second period of Modern Periodic table is :

(a) Li > Be > B > C > N > O > F > Ne

(b) Ne > F > O > N > C > B > Be >Li

(c) Ne < F < O < N < C < B < Be < Li

(d) Li < Be < B < C < N < O < F < Ne

30. What is the name of the following compound ? 

           

(a) Methanoic acid      (b) Ethanoic acid     (c)  Propanoic acid      (d) Butanoic acid

31. An element ‘Z’ has atomic number 9 . In which period and group , it can be placed in the Modern Periodic table ?

Photo

---

Posted 3 days ago