Civil Services Examination - General science: fundamentals of physics chemistry and biology Online Test (MCQ Quiz)

1. What is the SI unit of force?

A) Joule B) Watt C) Newton D) Pascal

2. Which of the following is the most abundant gas in Earth's atmosphere?

A) Oxygen B) Carbon Dioxide C) Nitrogen D) Argon

3. What is the process by which plants make their own food called?

A) Respiration B) Transpiration C) Photosynthesis D) Fermentation

4. What is the chemical symbol for gold?

A) Ag B) Au C) Fe D) Pb

5. Which law of motion states that for every action, there is an equal and opposite reaction?

A) Newton's First Law B) Newton's Second Law C) Newton's Third Law D) Archimedes' Principle

6. What is the main function of red blood cells?

A) Fighting infection B) Clotting blood C) Carrying oxygen D) Producing antibodies

7. What is the SI unit of electric current?

A) Volt B) Ohm C) Ampere D) Coulomb

8. Which element is known as the 'universal solvent' due to its ability to dissolve many substances?

A) Ethanol B) Acetone C) Water D) Methanol

9. What is the process of a liquid changing into a gas called?

A) Condensation B) Evaporation C) Melting D) Sublimation

10. Which part of the plant is responsible for absorbing water and minerals from the soil?

A) Leaves B) Stem C) Flower D) Roots

11. What is the phenomenon where light bends as it passes from one medium to another?

A) Reflection B) Diffraction C) Refraction D) Dispersion

12. Which type of cell is responsible for producing antibodies?

A) Red blood cells B) Platelets C) Neutrophils D) B lymphocytes

13. What is the chemical formula for common salt?

A) K2O B) NaCl C) CO2 D) H2O

14. What is the SI unit of energy?

A) Watt B) Joule C) Newton D) Erg

15. Which organ in the human body is responsible for pumping blood?

A) Lungs B) Liver C) Heart D) Brain

16. What is the process by which solid changes directly into gas called?

A) Melting B) Vaporization C) Sublimation D) Condensation

17. What is the pH of pure water?

A) 0 B) 7 C) 14 D) 1

18. Which gas is produced during photosynthesis?

A) Carbon dioxide B) Oxygen C) Nitrogen D) Methane

19. What is the SI unit of power?

A) Joule B) Newton C) Watt D) Pascal

20. Which of the following is a non-metal that is a good conductor of electricity?

A) Sulfur B) Phosphorus C) Graphite D) Diamond

21. What is the function of the mitochondria in a cell?

A) Protein synthesis B) Energy production C) Waste disposal D) Genetic material storage

22. Which type of energy is stored in a stretched rubber band?

A) Kinetic energy B) Thermal energy C) Potential energy D) Chemical energy

23. What is the process of breaking down food into simpler substances that the body can absorb called?

A) Digestion B) Circulation C) Respiration D) Excretion

24. What is the chemical symbol for iron?

A) Ir B) In C) Fe D) Ag

25. Which phenomenon causes the sky to appear blue?

A) Reflection of sunlight B) Scattering of sunlight by atmospheric particles C) Refraction of sunlight D) Absorption of sunlight

26. What is the basic unit of heredity?

A) Cell B) Chromosome C) Gene D) DNA

27. What is the SI unit of pressure?

A) Joule B) Watt C) Newton D) Pascal

28. Which gas is used by dentists for anesthesia?

A) Carbon dioxide B) Nitrous oxide C) Oxygen D) Helium

29. What is the process of a gas changing into a liquid called?

A) Evaporation B) Melting C) Condensation D) Sublimation

30. Which part of the human eye controls the amount of light entering it?

A) Retina B) Cornea C) Iris D) Lens

31. What is the SI unit of temperature?

A) Celsius B) Fahrenheit C) Kelvin D) Rankine

32. Which type of acid is found in lemons?

A) Sulfuric acid B) Hydrochloric acid C) Citric acid D) Acetic acid

33. What is the main function of white blood cells?

A) Carrying oxygen B) Clotting blood C) Fighting infection D) Transporting nutrients

34. What is the chemical symbol for silver?

A) Ag B) Au C) Si D) Sn

35. Which force keeps planets in orbit around the sun?

A) Electromagnetic force B) Nuclear force C) Gravitational force D) Frictional force

36. What is the term for the change of state from solid to liquid?

A) Freezing B) Boiling C) Melting D) Condensation

37. Which gas is essential for respiration in humans?

A) Carbon dioxide B) Nitrogen C) Oxygen D) Hydrogen

38. What is the SI unit of resistance?

A) Ampere B) Volt C) Ohm D) Coulomb

39. Which part of a plant conducts water from roots to leaves?

A) Phloem B) Xylem C) Stomata D) Petals

40. What is the common name for the chemical compound dihydrogen monoxide?

A) Ammonia B) Hydrogen peroxide C) Water D) Methane

41. Which of the following is a primary color of light?

A) Yellow B) Cyan C) Magenta D) Green

42. What is the process of cell division that results in two identical daughter cells?

A) Meiosis B) Mitosis C) Fertilization D) Mutation

43. What is the SI unit of luminous intensity?

A) Lumen B) Lux C) Candela D) Candlepower

44. Which metal is liquid at room temperature?

A) Iron B) Copper C) Mercury D) Aluminum

45. What is the chemical formula for sulfuric acid?

A) HCl B) HNO3 C) H2SO4 D) H2CO3

46. Which part of the ear is responsible for balance?

A) Cochlea B) Eardrum C) Semicircular canals D) Ossicles

47. What is the term for the tendency of an object to resist changes in its state of motion?

A) Velocity B) Acceleration C) Momentum D) Inertia

48. Which gas is produced in large quantities during the burning of fossil fuels and contributes to global warming?

A) Oxygen B) Nitrogen C) Carbon dioxide D) Methane

49. What is the SI unit of electric charge?

A) Ampere B) Volt C) Ohm D) Coulomb

50. Which vitamin is synthesized in the skin upon exposure to sunlight?

A) Vitamin A B) Vitamin C C) Vitamin D D) Vitamin K

General science: fundamentals of physics chemistry and biology - Online Test

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