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 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

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2. Which of the following is a noble gas?

A. Hydrogen

B. Helium

C. Nitrogen

D. Oxygen

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

A. Interference

B. Reflection

C. Diffraction

D. Refraction

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

A. Energy is directly proportional to mass and velocity.

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

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.

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5. What is the chemical formula for table salt?

A. H2SO4

B. HCl

C. NaCl

D. NaOH

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

A. Photosynthesis

B. Respiration

C. Fermentation

D. Digestion

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

A. Facilitation of movement

B. Support and protection of internal organs

C. Production of blood cells

D. Regulation of body temperature

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

A. Cerebrum

B. Hypothalamus

C. Cerebellum

D. Medulla oblongata

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

A. Helium

B. Carbon dioxide

C. Oxygen

D. Nitrogen

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10. What is the SI unit of frequency?

A. Hertz

B. Meter

C. Ohm

D. Pascal

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

A. Vaporization

B. Sublimation

C. Evaporation

D. Condensation

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12. What is the SI unit of power?

A. Joule

B. Watt

C. Ohm

D. Newton

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13. The SI unit of electric charge is:

A. Ohm

B. Coulomb

C. Volt

D. Ampere

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14. What is the chemical formula for water?

CH₄

CO₂

H₂O

H₂O₂

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

A. Argon

B. Nitrogen

C. Helium

D. Neon

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

A. Regulation of body temperature

B. Processing sensory information

C. Controlling voluntary movements

D. Transmitting signals between different parts of the body

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17. 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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18. What is the chemical symbol for potassium?

A. Pb

B. P

C. Pt

D. K

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

A. Brain

B. Heart

C. Liver

D. Skin

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

A. Boiling water

B. Cutting paper

C. Melting ice

D. Rusting iron

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

A. Pumping blood throughout the body

B. Exchanging gases between the body and the environment

C. Regulating body temperature

D. Digesting food and absorbing nutrients

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22. The chemical symbol for silver is:

A. Au

B. Ag

C. Si

D. Sn

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

A. Small intestine

B. Liver

C. Kidney

D. Stomach

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

A. Mitochondrion

B. Nucleus

C. Golgi apparatus

D. Ribosome

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

A. Transportation of oxygen

B. Carrying nerve impulses

C. Blood clotting

D. Fighting infections

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

A. Joule

B. Volt

C. Newton

D. Watt

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27. Which of the following elements is a halogen?

A. Sodium

B. Chlorine

C. Iron

D. Calcium

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

A. Capillary

B. Nephron

C. Vein

D. Artery

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

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

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

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

A. Mass

B. Velocity

C. Energy

D. Temperature

Your score is

The average score is 28%

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