Mock Test – SEBA Class 12 Science (Physics, Chemistry and Biology) - CollegeXpad Navigating your Educational Journey

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Mock Test For SEBA Class 12 Students (Science)

Here's a Mock Test for Class12 Students.

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1 / 30

1. What is the chemical formula for water?

CO₂

H₂O

H₂O₂

CH₄

2 / 30

2. What is the SI unit of frequency?

A. Pascal

B. Meter

C. Ohm

D. Hertz

3 / 30

3. Which part of the human brain is responsible for regulating balance and coordination?

A. Medulla oblongata

B. Cerebrum

C. Cerebellum

D. Hypothalamus

4 / 30

4. What is the primary function of red blood cells in the human body?

A. Transportation of oxygen

B. Blood clotting

C. Carrying nerve impulses

D. Fighting infections

5 / 30

5. Which of the following is NOT a type of blood vessel?

A. Nephron

B. Vein

C. Capillary

D. Artery

6 / 30

6. According to Ohm's Law, the current passing through a conductor is directly proportional to:

A. Resistance

B. Capacitance

C. Temperature

D. Voltage

7 / 30

7. What is the phenomenon where a wave changes direction upon entering a different medium?

A. Refraction

B. Diffraction

C. Interference

D. Reflection

8 / 30

8. Which of the following is NOT a function of the nervous system?

A. Transmitting signals between different parts of the body

B. Controlling voluntary movements

C. Processing sensory information

D. Regulation of body temperature

9 / 30

9. What is the SI unit of power?

A. Ohm

B. Joule

C. Newton

D. Watt

10 / 30

10. Which of the following is not a noble gas?

A. Argon

B. Nitrogen

C. Neon

D. Helium

11 / 30

11. Which of the following is an example of a chemical change?

A. Melting ice

B. Boiling water

C. Rusting iron

D. Cutting paper

12 / 30

12. Which of the following is NOT a part of the human digestive system?

A. Kidney

B. Liver

C. Small intestine

D. Stomach

13 / 30

13. Which gas is most abundant in the Earth's atmosphere?

A. Nitrogen

B. Carbon dioxide

C. Helium

D. Oxygen

14 / 30

14. Which of the following is NOT a function of the skeletal system?

A. Facilitation of movement

B. Production of blood cells

C. Regulation of body temperature

D. Support and protection of internal organs

15 / 30

15. Which of the following is a unit of measurement for force?

A. Joule

B. Volt

C. Watt

D. Newton

16 / 30

16. The acceleration due to gravity near the surface of the Earth is approximately:

A. 9.8 m/s^2

B. 5.6 m/s^2

C. 6.2 m/s^2

D. 12.4 m/s^2

17 / 30

17. Which organelle is known as the powerhouse of the cell?

A. Golgi apparatus

B. Mitochondrion

C. Nucleus

D. Ribosome

18 / 30

18. Which of the following is an example of a vector quantity?

A. Velocity

B. Energy

C. Temperature

D. Mass

19 / 30

19. The chemical symbol for silver is:

A. Si

B. Sn

C. Au

D. Ag

20 / 30

20. What is the chemical formula for table salt?

A. NaOH

B. NaCl

C. H2SO4

D. HCl

21 / 30

21. The SI unit of electric charge is:

A. Ampere

B. Coulomb

C. Ohm

D. Volt

22 / 30

22. What is the largest organ in the human body?

A. Skin

B. Brain

C. Liver

D. Heart

23 / 30

23. The process by which plants make their food using sunlight is called:

A. Respiration

B. Photosynthesis

C. Fermentation

D. Digestion

24 / 30

24. What is the chemical symbol for potassium?

A. P

B. Pt

C. K

D. Pb

25 / 30

25. Which of the following is a noble gas?

A. Helium

B. Hydrogen

C. Oxygen

D. Nitrogen

26 / 30

26. What is the process by which a liquid changes into a gas at its boiling point?

A. Condensation

B. Evaporation

C. Sublimation

D. Vaporization

27 / 30

27. Which of the following elements is a halogen?

A. Calcium

B. Sodium

C. Iron

D. Chlorine

28 / 30

28. Which of the following statements about Newton's First Law of Motion is correct?

A. For every action, there is an equal and opposite reaction.

B. The velocity of an object remains constant unless acted upon by a net external force.

C. An object at rest tends to remain at rest unless acted upon by a net external force.

D. The acceleration of an object is directly proportional to the net external force acting on it.

29 / 30

29. What is the primary function of the respiratory system?

A. Pumping blood throughout the body

B. Regulating body temperature

C. Exchanging gases between the body and the environment

D. Digesting food and absorbing nutrients

30 / 30

30. Which of the following best describes the law of conservation of energy?

A. The total energy of a closed system remains constant over time.

B. Energy is directly proportional to mass and velocity.

C. Energy always flows from a region of higher concentration to a region of lower concentration.

D. Energy cannot be created nor destroyed, only transferred or transformed from one form to another.

Your score is

The average score is 28%

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