Civil Services Examination - General science: fundamentals of physics chemistry and biology Question Bank with Options

1. What is the chemical symbol for lead?

A) Li

B) La

C) Pb

D) Lv

2. What is the process of a liquid changing directly into a solid called?

A) Melting

B) Freezing

C) Boiling

D) Condensation

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

A) Vitamin A

B) Vitamin C

C) Vitamin D

D) Vitamin K

4. What is the SI unit of electric charge?

A) Ampere

B) Volt

C) Ohm

D) Coulomb

5. 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

6. 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

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

A) Cochlea

B) Eardrum

C) Semicircular canals

D) Ossicles

8. What is the chemical formula for sulfuric acid?

A) HCl

B) HNO3

C) H2SO4

D) H2CO3

9. Which metal is liquid at room temperature?

A) Iron

B) Copper

C) Mercury

D) Aluminum

10. What is the SI unit of luminous intensity?

A) Lumen

B) Lux

C) Candela

D) Candlepower

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

A) Meiosis

B) Mitosis

C) Fertilization

D) Mutation

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

A) Yellow

B) Cyan

C) Magenta

D) Green

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

A) Ammonia

B) Hydrogen peroxide

C) Water

D) Methane

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

A) Phloem

B) Xylem

C) Stomata

D) Petals

15. What is the SI unit of resistance?

A) Ampere

B) Volt

C) Ohm

D) Coulomb

16. Which gas is essential for respiration in humans?

A) Carbon dioxide

B) Nitrogen

C) Oxygen

D) Hydrogen

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

A) Freezing

B) Boiling

C) Melting

D) Condensation

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

A) Electromagnetic force

B) Nuclear force

C) Gravitational force

D) Frictional force

19. What is the chemical symbol for silver?

A) Ag

B) Au

C) Si

D) Sn

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

A) Carrying oxygen

B) Clotting blood

C) Fighting infection

D) Transporting nutrients

21. Which type of acid is found in lemons?

A) Sulfuric acid

B) Hydrochloric acid

C) Citric acid

D) Acetic acid

22. What is the SI unit of temperature?

A) Celsius

B) Fahrenheit

C) Kelvin

D) Rankine

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

A) Retina

B) Cornea

C) Iris

D) Lens

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

A) Evaporation

B) Melting

C) Condensation

D) Sublimation

25. Which gas is used by dentists for anesthesia?

A) Carbon dioxide

B) Nitrous oxide

C) Oxygen

D) Helium

26. What is the SI unit of pressure?

A) Joule

B) Watt

C) Newton

D) Pascal

27. What is the basic unit of heredity?

A) Cell

B) Chromosome

C) Gene

D) DNA

28. 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

29. What is the chemical symbol for iron?

A) Ir

B) In

C) Fe

D) Ag

30. 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

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

A) Kinetic energy

B) Thermal energy

C) Potential energy

D) Chemical energy

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

A) Protein synthesis

B) Energy production

C) Waste disposal

D) Genetic material storage

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

A) Sulfur

B) Phosphorus

C) Graphite

D) Diamond

34. What is the SI unit of power?

A) Joule

B) Newton

C) Watt

D) Pascal

35. Which gas is produced during photosynthesis?

A) Carbon dioxide

B) Oxygen

C) Nitrogen

D) Methane

36. What is the pH of pure water?

A) 0

B) 7

C) 14

D) 1

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

A) Melting

B) Vaporization

C) Sublimation

D) Condensation

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

A) Lungs

B) Liver

C) Heart

D) Brain

39. What is the SI unit of energy?

A) Watt

B) Joule

C) Newton

D) Erg

40. What is the chemical formula for common salt?

A) K2O

B) NaCl

C) CO2

D) H2O

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

A) Red blood cells

B) Platelets

C) Neutrophils

D) B lymphocytes

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

A) Reflection

B) Diffraction

C) Refraction

D) Dispersion

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

A) Leaves

B) Stem

C) Flower

D) Roots

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

A) Condensation

B) Evaporation

C) Melting

D) Sublimation

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

A) Ethanol

B) Acetone

C) Water

D) Methanol

46. What is the SI unit of electric current?

A) Volt

B) Ohm

C) Ampere

D) Coulomb

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

A) Fighting infection

B) Clotting blood

C) Carrying oxygen

D) Producing antibodies

48. 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

49. What is the chemical symbol for gold?

A) Ag

B) Au

C) Fe

D) Pb

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

A) Respiration

B) Transpiration

C) Photosynthesis

D) Fermentation

General science: fundamentals of physics chemistry and biology - Question Bank