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 table salt?

A. NaOH

B. NaCl

C. HCl

D. H2SO4

2 / 30

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

A. Medulla oblongata

B. Cerebellum

C. Cerebrum

D. Hypothalamus

3 / 30

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

A. Interference

B. Diffraction

C. Reflection

D. Refraction

4 / 30

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

A. Regulation of body temperature

B. Controlling voluntary movements

C. Processing sensory information

D. Transmitting signals between different parts of the body

5 / 30

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

A. Artery

B. Nephron

C. Vein

D. Capillary

6 / 30

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

A. Small intestine

B. Liver

C. Stomach

D. Kidney

7 / 30

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

A. 6.2 m/s^2

B. 12.4 m/s^2

C. 5.6 m/s^2

D. 9.8 m/s^2

8 / 30

8. Which of the following is a noble gas?

A. Helium

B. Hydrogen

C. Oxygen

D. Nitrogen

9 / 30

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

A. Watt

B. Volt

C. Joule

D. Newton

10 / 30

10. What is the SI unit of frequency?

A. Ohm

B. Pascal

C. Hertz

D. Meter

11 / 30

11. What is the SI unit of power?

A. Joule

B. Newton

C. Ohm

D. Watt

12 / 30

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

A. Evaporation

B. Vaporization

C. Condensation

D. Sublimation

13 / 30

13. 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.

14 / 30

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

A. Argon

B. Helium

C. Neon

D. Nitrogen

15 / 30

15. What is the chemical formula for water?

CO₂

CH₄

H₂O

H₂O₂

16 / 30

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

A. Exchanging gases between the body and the environment

B. Pumping blood throughout the body

C. Regulating body temperature

D. Digesting food and absorbing nutrients

17 / 30

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

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

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

18 / 30

18. The chemical symbol for silver is:

A. Sn

B. Au

C. Si

D. Ag

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

A. Production of blood cells

B. Support and protection of internal organs

C. Regulation of body temperature

D. Facilitation of movement

20 / 30

20. The SI unit of electric charge is:

A. Ohm

B. Coulomb

C. Volt

D. Ampere

21 / 30

21. What is the chemical symbol for potassium?

A. Pt

B. Pb

C. K

D. P

22 / 30

22. Which of the following elements is a halogen?

A. Iron

B. Chlorine

C. Calcium

D. Sodium

23 / 30

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

A. Temperature

B. Capacitance

C. Resistance

D. Voltage

24 / 30

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

A. Melting ice

B. Boiling water

C. Rusting iron

D. Cutting paper

25 / 30

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

A. Respiration

B. Digestion

C. Fermentation

D. Photosynthesis

26 / 30

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

A. Heart

B. Skin

C. Brain

D. Liver

27 / 30

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

A. Fighting infections

B. Carrying nerve impulses

C. Transportation of oxygen

D. Blood clotting

28 / 30

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

A. Ribosome

B. Nucleus

C. Mitochondrion

D. Golgi apparatus

29 / 30

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

A. Oxygen

B. Nitrogen

C. Carbon dioxide

D. Helium

30 / 30

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

A. Velocity

B. Energy

C. Mass

D. Temperature

Your score is

The average score is 28%

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