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. What is the SI unit of power?

A. Ohm

B. Newton

C. Watt

D. Joule

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

A. Argon

B. Neon

C. Helium

D. Nitrogen

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

A. Melting ice

B. Rusting iron

C. Cutting paper

D. Boiling water

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

A. Blood clotting

B. Carrying nerve impulses

C. Transportation of oxygen

D. Fighting infections

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

A. Regulating body temperature

B. Digesting food and absorbing nutrients

C. Exchanging gases between the body and the environment

D. Pumping blood throughout the body

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

A. Evaporation

B. Sublimation

C. Vaporization

D. Condensation

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7. What is the chemical formula for water?

CH₄

CO₂

H₂O₂

H₂O

8 / 30

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

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

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

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

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

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

A. Resistance

B. Temperature

C. Voltage

D. Capacitance

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10. Which of the following is a noble gas?

A. Oxygen

B. Hydrogen

C. Nitrogen

D. Helium

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

A. Skin

B. Heart

C. Liver

D. Brain

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

A. Mitochondrion

B. Nucleus

C. Golgi apparatus

D. Ribosome

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13. What is the SI unit of frequency?

A. Pascal

B. Meter

C. Ohm

D. Hertz

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

A. 9.8 m/s^2

B. 12.4 m/s^2

C. 5.6 m/s^2

D. 6.2 m/s^2

15 / 30

15. The chemical symbol for silver is:

A. Sn

B. Au

C. Ag

D. Si

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16. 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 always flows from a region of higher concentration to a region of lower concentration.

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

D. Energy is directly proportional to mass and velocity.

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

A. Medulla oblongata

B. Cerebellum

C. Hypothalamus

D. Cerebrum

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

A. Reflection

B. Refraction

C. Interference

D. Diffraction

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

A. Artery

B. Nephron

C. Capillary

D. Vein

20 / 30

20. What is the chemical symbol for potassium?

A. P

B. K

C. Pt

D. Pb

21 / 30

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

A. Fermentation

B. Respiration

C. Digestion

D. Photosynthesis

22 / 30

22. What is the chemical formula for table salt?

A. HCl

B. H2SO4

C. NaOH

D. NaCl

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

A. Energy

B. Temperature

C. Velocity

D. Mass

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

A. Regulation of body temperature

B. Support and protection of internal organs

C. Facilitation of movement

D. Production of blood cells

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

A. Liver

B. Stomach

C. Kidney

D. Small intestine

26 / 30

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

A. Watt

B. Newton

C. Volt

D. Joule

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27. Which of the following elements is a halogen?

A. Calcium

B. Iron

C. Sodium

D. Chlorine

28 / 30

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

A. Controlling voluntary movements

B. Processing sensory information

C. Transmitting signals between different parts of the body

D. Regulation of body temperature

29 / 30

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

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Helium

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30. The SI unit of electric charge is:

A. Coulomb

B. Ampere

C. Volt

D. Ohm

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The average score is 28%

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