General Science GK MCQ Quiz for Exam Preparation
General Science GK MCQ quiz for APSC, SSC, UPSC, and other competitive exams. This quiz covers important questions on topics like physics, chemistry, and biology to help strengthen your science knowledge for exams.
General Science Quiz with MCQ
1. What is the chemical formula for table salt?
a) NaCl
b) KCl
c) CaCO3
d) MgSO4
2. Which blood group is known as the universal donor?
a) A
b) B
c) AB
d) O
3. Which part of the human brain controls balance and coordination?
a) Cerebrum
b) Cerebellum
c) Medulla
d) Hypothalamus
4. Who discovered the electron?
a) Albert Einstein
b) J.J. Thomson
c) Niels Bohr
d) Ernest Rutherford
5. What is the primary gas found in the sun?
a) Oxygen
b) Nitrogen
c) Hydrogen
d) Carbon Dioxide
6. Which of the following is a non-renewable resource?
a) Solar energy
b) Wind energy
c) Coal
d) Hydroelectricity
7. The chemical symbol for Iron is?
a) Ir
b) In
c) Fe
d) I
8. Which vitamin helps in blood clotting?
a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin K
9. What type of lens is used to correct short-sightedness?
a) Concave
b) Convex
c) Plano-convex
d) Cylindrical
10. Which part of the cell is responsible for controlling cell activities?
a) Mitochondria
b) Ribosomes
c) Nucleus
d) Cell membrane
11. What is the most abundant metal in the Earth’s crust?
a) Iron
b) Aluminum
c) Copper
d) Zinc
12. Which process converts sugar into alcohol?
a) Photosynthesis
b) Fermentation
c) Respiration
d) Oxidation
13. The ozone layer protects us from which type of radiation?
a) Infrared
b) Ultraviolet
c) Microwave
d) Gamma rays
14. What is the main component of natural gas?
a) Ethane
b) Methane
c) Propane
d) Butane
15. Which scientist is known for developing the periodic table?
a) Isaac Newton
b) Dmitri Mendeleev
c) Niels Bohr
d) Marie Curie
16. Which disease is caused by the deficiency of iodine?
a) Scurvy
b) Rickets
c) Goiter
d) Anemia
17. What is the SI unit of force?
a) Watt
b) Newton
c) Joule
d) Pascal
18. Which blood cells are responsible for fighting infections?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
19. What is the approximate pH of human blood?
a) 5.4
b) 6.4
c) 7.4
d) 8.4
20. What gas do animals exhale as a waste product of respiration?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
d) Hydrogen
21. Which device is used to measure temperature?
a) Thermometer
b) Barometer
c) Hygrometer
d) Calorimeter
22. What is the scientific term for the study of bones?
a) Myology
b) Osteology
c) Cytology
d) Neurology
23. Which planet in our solar system has the most moons?
a) Mars
b) Earth
c) Saturn
d) Jupiter
24. Which part of the human eye is responsible for controlling the amount of light that enters?
a) Retina
b) Cornea
c) Iris
d) Pupil
25. What is the most common cause of malaria?
a) Virus
b) Bacteria
c) Plasmodium parasite
d) Fungus
26. What is the most common type of acid in the human stomach?
a) Acetic acid
b) Hydrochloric acid
c) Sulfuric acid
d) Citric acid
27. Which gas is commonly known as “laughing gas”?
a) Nitrogen
b) Oxygen
c) Nitrous Oxide
d) Carbon Monoxide
28. Which substance is known as the “universal solvent”?
a) Ethanol
b) Acetone
c) Water
d) Benzene
29. Who discovered the neutron?
a) James Chadwick
b) J.J. Thomson
c) Albert Einstein
d) Niels Bohr
30. What is the chemical formula for carbon dioxide?
a) CO
b) CO2
c) CH4
d) H2CO3