PSEB 10th Sample Paper 2025 Science

Punjab Board

Sample Academic Year
2025

Paper

Model Test Paper
SCIENCE
Class-10th
Max. Marks 80
Q.1 Attempt the following Multiple Choice Questions.
I. Gurpreet brought some mint from the market. After some days
there was a strong smell from mint.Why did this happen?
a) Reduction b) Oxidation
c) Corrosion d) Displacement
e)
II. When we mix lead nitrate and potassium iodide, yellow
precipitate is formed. Can you name the precipitate?
a) lead oxide b) potassium nitrate
c) potassium oxide d) lead iodide

III. PH of a neutral solution is
a) Less than 7 b) 7
c) Greater than 7 d) 0

IV. Tartaric acid is found in
a) Vinegar b) Nettle Sting
c) Tomato d) Tamarind

V. The ability of metals to be drawn into thin wires is known as
a) Ductility b) Malleability
c) Sonorous d) Conductivity

VI. During the electrolytic refining of copper, cathode is made of
a) Impure copper b) Pure copper
c) Zinc d) Iron

VII. What is full form of ATP?
a) Adenosine Tri-Phosphate b) Amino Tri Phosphate
c) Adenosine Tetra-Phosphate d) Amino Tetra Phosphate

VIII. What happens when water is released from guard cells?
a) Guard cell get closed b)Guard cell get open
c) Guard cell become green in colour d) Dried up
IX. Select the mode of excretion in plants.
a) Dead leaves b) Transpiration
c) Cellular Vacuoles d) All the above

X. Which part of the brain can be divided into two hemispheres?
a) Mid brain b) Fore brain
c) Hind brain d) Spinal cord

XI. Which of the following is not an involuntary action?
a) Vomitting b) Salivation
c) Heart beat d) Chewing

XII. The disease caused due to sexual contact is
a) AIDS b) Cholera
c) Elephant’s Foot d) Tuberculosis

XIII. The human which has XY chromosome is called
a) Female b) Hybrid
c) Male d) None of the above

XIV. Which of the following material cannot be used to make a lens?
a) Water b) Glass
c) Plastic d) Clay

XV. The mode of reproduction in Spirogyra is
a) Budding b) Fragmentation
c) Regeneration d) Fission

XVI. What will be the colour of sky when seen from moon?
a) Blue b) Green
c) Black d) Yellow

XVII. Which of the following metal is used in the making the filament
of electric bulb ?
a) Copper b) Aluminium
c) Tungsten d) lead

XVIII. Choose the instrument used to protect electric circuits from short
circuiting and over loading.
a) Generator b) Motor
c) Fuse d) None of the above

XIX. What is the molecular formula of ozone?
a) O2 b) O3
c) O5 d) O11

XX. Which of the following is not non-biodegradable?
a) Vegetable Peel b) Glass
c) Plastic Bottle d) Leather

Match Column A with Column B

Column A Column B
XXI. Ammeter Concave Lens
XXII. Unit of Resistance 1/V+1/U=1/F
XXIII. Near Sightedness Ethanol
XXIV. Mirror Formula Electric Current
XXV. Drinking Alcohol Ohm

(25%1=25)

Two Marks Questions
[Attempt any 11]
Q.2 Compare functioning of Alveoli in the lungs and nephrons in the
kidneys with respect to their function
Q.3 Why should a Magnesium ribbon be rubbed before burning in
the air?
Q.4 Why should curd and other sour substances not to be kept in
brass or copper vessels?
Q.5 What is the role of acid on our stomach?
Q.6 What are the two properties of carbon which lead to the huge
number of carbon compounds we see around us?
Q.7 How does our body respond when adrenaline is secreted in our
blood?
Q.8 How is the sex of child determined in human beings
Q.9 Define Principal focus of a concave mirror
Q.10 What is accommodation in human eye?
Q.11 Give the characteristics of magnetic field lines
Q.12 What is ozone? How does it affect an ecosystem?
Q.13 Which two gases are released during electrolysis of water?
Mention chemical Equation related to it
Q.14 Why do stars twinkle?
Q.15 What would be the consequence of deficiency of hemoglobin in
our bodies?
Q.16 A doctor has prescribed a corrective lens of power +1.5D. Find
Focal Length of lens. Is prescribed lens diverging or converging.

Three Marks Questions
[Attempt any 6]

Q.17 When an iron nail is dipped in Copper Sulphate solution, what
will be the observation after some time? Explain with equation.
Q.18 What is homologous series? Explain with help of example
Q.19 Draw the structure of Neuron and explain its functions
Q.20 Write two differences between Real Image and Virtual Image.
What will be the size of image formed by a convex lens when
object lies at 2F
Q.21 What is Myopia? What are the reasons of it? How the defect can
be corrected?
Q.22 Explain biological Magnification
Q.23 How does chemical coordination takes place in plants?
Q.24 The focal length of a Concave lens is 2m. Calculate the power of
the lens.
Q.25 How would you distinguish experimentally between an alcohol
and a carboxylic acid

Five Marks Questions

Q.26
a) Differentiate between sexual reproduction and asexual reproduction
(any 3)
b) Write 2 advantages of sexual reproduction over asexual
reproduction
Or
a) Draw a labelled Diagram of the longitudinal section of a flower
b) What are the changes seen in girls in the time of puberty?
Q.27 Differentiate between metals and non-metals
Or
a) What are Amphoteric Oxides? Give 2 examples of amphoteric
oxides.
b) Why do ionic compounds have high melting points?
Q.28 What is Ohm’s Law? How will you verify Ohm’s law in the
laboratory?
Or

a) An electric heater of resistance 8 Ohms draws 15 A from service
mains for 2 hours. Calculate the rate at which heat is developed
in the heater.
b) Why is series arrangement not used in domestic circuits?

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