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. The chemical symbol for silver is:

A. Ag

B. Si

C. Au

D. Sn

2 / 30

2. Which of the following elements is a halogen?

A. Calcium

B. Chlorine

C. Sodium

D. Iron

3 / 30

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

A. Volt

B. Newton

C. Joule

D. Watt

4 / 30

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

A. Photosynthesis

B. Fermentation

C. Respiration

D. Digestion

5 / 30

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

A. Cutting paper

B. Boiling water

C. Rusting iron

D. Melting ice

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

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

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

7 / 30

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

A. 9.8 m/s^2

B. 6.2 m/s^2

C. 5.6 m/s^2

D. 12.4 m/s^2

8 / 30

8. What is the SI unit of power?

A. Watt

B. Ohm

C. Newton

D. Joule

9 / 30

9. 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

10 / 30

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

A. Cerebrum

B. Hypothalamus

C. Medulla oblongata

D. Cerebellum

11 / 30

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

A. Golgi apparatus

B. Mitochondrion

C. Ribosome

D. Nucleus

12 / 30

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

A. Resistance

B. Voltage

C. Temperature

D. Capacitance

13 / 30

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

A. Evaporation

B. Condensation

C. Sublimation

D. Vaporization

14 / 30

14. Which of the following is a noble gas?

A. Nitrogen

B. Helium

C. Oxygen

D. Hydrogen

15 / 30

15. What is the chemical formula for water?

CH₄

H₂O₂

CO₂

H₂O

16 / 30

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

A. Diffraction

B. Reflection

C. Interference

D. Refraction

17 / 30

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

A. Pumping blood throughout the body

B. Digesting food and absorbing nutrients

C. Exchanging gases between the body and the environment

D. Regulating body temperature

18 / 30

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

A. Velocity

B. Mass

C. Energy

D. Temperature

19 / 30

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

A. Stomach

B. Liver

C. Kidney

D. Small intestine

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

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

D. Energy is directly proportional to mass and velocity.

21 / 30

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

A. Vein

B. Nephron

C. Capillary

D. Artery

22 / 30

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

A. Skin

B. Liver

C. Heart

D. Brain

23 / 30

23. What is the SI unit of frequency?

A. Meter

B. Pascal

C. Hertz

D. Ohm

24 / 30

24. What is the chemical symbol for potassium?

A. Pt

B. K

C. P

D. Pb

25 / 30

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

A. Regulation of body temperature

B. Transmitting signals between different parts of the body

C. Controlling voluntary movements

D. Processing sensory information

26 / 30

26. What is the chemical formula for table salt?

A. NaCl

B. H2SO4

C. NaOH

D. HCl

27 / 30

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

A. Nitrogen

B. Oxygen

C. Carbon dioxide

D. Helium

28 / 30

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

A. Facilitation of movement

B. Regulation of body temperature

C. Production of blood cells

D. Support and protection of internal organs

29 / 30

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

A. Helium

B. Argon

C. Nitrogen

D. Neon

30 / 30

30. The SI unit of electric charge is:

A. Ampere

B. Ohm

C. Coulomb

D. Volt

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