CBSE 10 Science Question Paper- 2025 Set-3 by Pavan | Practice Test to Test Your Knowledge
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  2. Practice Tests
  3. CBSE 10 Science Question Paper- 2025 Set-3
CBSE 10 Science Question Paper- 2025 Set-3

CBSE 10 Science Question Paper- 2025 Set-3

This mock test includes actual CBSE Class 10 Maths board exam questions from the year 2025 set 3, helping students understand exam trends and practice real paper formats

2025-07-31
Pavan Pavan
Class 10 Science 2025 Set-3 K-12

Duration

30 min

Questions

30

Marking

Negative

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Questions Preview

Consider the following chemical equation: p Al + q H2O ⎯→⎯ r Al2O3 + s H2. To balance this chemical equation, the values of ‘p’, ‘q’, ‘r’, and ‘s’ must be respectively:

A
3, 2, 2, 1
B
2, 3, 3, 1
C
2, 3, 1, 3
D
3, 1, 2, 2

Which of the given options represents a family of salts?

A
NaCl, Na2SO4, CaSO4
B
K2SO4, Na2SO4, CaSO4
C
NaNO3, CaCO3, Na2CO3
D
MgSO4, CuSO4, MgCl2

The most common method of extraction of metals from their oxide ores is:

A
Reduction with carbon
B
Reduction with hydrogen
C
Reduction with aluminium
D
Electrolytic reduction

Which one of the following statements is not true about a bar magnet?

A
It sets itself in the north-south direction when suspended freely.
B
It has attractive power for iron filings.
C
It produces magnetic field lines.
D
The direction of magnetic field lines inside a bar magnet is from its north pole to its south pole.

The strength of magnetic field produced inside a long straight current carrying solenoid does not depend upon:

A
Number of turns in the solenoid
B
Direction of current flowing through the solenoid
C
Material of the core filled inside the solenoid
D
Radius of the coil of the solenoid

What is the cause of hardness of water? Sometimes it is observed that while bathing, foam is formed with difficulty and an insoluble substance is formed. Name this substance and write the cause of its formation.

A
Calcium carbonate, formed due to the presence of calcium salts
B
Magnesium sulfate, formed due to the presence of magnesium salts
C
Calcium chloride, formed due to the presence of calcium chloride in water
D
Sodium bicarbonate, formed due to the presence of sodium salts

In a food chain, energy flow is unidirectional. Which of the following reasons explain this statement?

A
Energy is transferred from one trophic level to the next without any loss.
B
Energy is transferred in both directions in the food chain.
C
Energy flow is unidirectional from producers to consumers.
D
Energy is stored at each trophic level and is available for the next level.

The hormone secreted in the blood when a person is in a panic state is known as:

A
Adrenaline
B
Insulin
C
Thyroxine
D
Estrogen

Which of the following is the main function of veins in the human circulatory system?

A
Transport oxygenated blood to the heart
B
Transport deoxygenated blood back to the heart
C
Carry nutrients to tissues
D
Remove carbon dioxide from tissues

What is the name of the plant hormone that is present in greater concentration in the areas of rapidly dividing cells?

A
Auxin
B
Cytokinins
C
Gibberellins
D
Abscisic acid

Which of the following processes is used in the hydrogenation of vegetable oils?

A
Addition reaction in the presence of a nickel catalyst
B
Addition reaction in the presence of an acid catalyst
C
Substitution reaction with hydrogen
D
Condensation in the presence of palladium

In the reactivity series of metals, which of the following metals does not react with oxygen even at high temperatures?

A
Gold
B
Calcium
C
Iron
D
Aluminum

What is the main role of the cerebellum in the human brain?

A
Control voluntary movements
B
Maintain posture and balance
C
Regulate heart rate
D
Control emotions

In the context of the food chain, which one of the following statements is true about energy flow?

A
Energy is recycled in the ecosystem.
B
Energy flows in both directions in the food chain.
C
Energy flow is unidirectional from producers to consumers.
D
Energy flows in a cyclic manner within the ecosystem.

Which hormone is secreted in the blood when a person is in a panic state?

A
Adrenaline
B
Insulin
C
Thyroxine
D
Cortisol

Which of the following is true about the process of hydrogenation of vegetable oils?

A
It involves the addition of hydrogen to unsaturated fats.
B
It involves the addition of oxygen to saturated fats.
C
It involves the removal of hydrogen from unsaturated fats.
D
It involves the removal of oxygen from saturated fats.

Which of the following is not a characteristic of a bar magnet?

A
It has a north and a south pole.
B
It produces a magnetic field.
C
It has the ability to attract other magnetic materials.
D
It always points north when freely suspended.

What is the term for the movement of water molecules through a semi-permeable membrane?

A
Osmosis
B
Diffusion
C
Active transport
D
Evaporation

Which process is involved in the generation of energy in animals?

A
Photosynthesis
B
Fermentation
C
Respiration
D
Transpiration

Which of the following is the male reproductive organ in plants?

A
Stigma
B
Anther
C
Ovary
D
Filament

Which gas is released during photosynthesis?

A
Oxygen
B
Carbon dioxide
C
Nitrogen
D
Methane

What is the function of the nervous system?

A
To transmit electrical impulses to muscles and glands
B
To produce hormones
C
To transport oxygen
D
To digest food

Which of the following is a correct description of osmosis?

A
Movement of water from a region of lower solute concentration to higher solute concentration
B
Movement of solutes from a region of higher concentration to lower concentration
C
Movement of water from high pressure to low pressure
D
Movement of water against concentration gradient

Which process is involved in the generation of energy in animals?

A
Photosynthesis
B
Fermentation
C
Respiration
D
Transpiration

What is the main function of the cerebellum in the human brain?

A
Control voluntary movements
B
Maintain posture and balance
C
Regulate heart rate
D
Control emotions

Which hormone is secreted in the blood when a person is in a panic state?

A
Adrenaline
B
Insulin
C
Thyroxine
D
Cortisol

The male reproductive organ in plants is known as:

A
Stigma
B
Anther
C
Ovary
D
Filament

Which process is responsible for energy production in plants?

A
Photosynthesis
B
Respiration
C
Fermentation
D
Transpiration

What happens to the light when it passes through a prism?

A
It refracts and disperses into a spectrum.
B
It reflects back.
C
It passes straight through without any change.
D
It absorbs the light.

What is the speed of light in a vacuum?

A
3 × 10^8 m/s
B
3 × 10^6 m/s
C
3 × 10^10 m/s
D
3 × 10^5 m/s