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 symbol for water?
a) H2
b) O2
c) CO2
d) H2O
2. Which planet is known as the “Red Planet”?
a) Earth
b) Venus
c) Mars
d) Jupiter
3. What is the powerhouse of the cell?
a) Nucleus
b) Ribosome
c) Mitochondria
d) Chloroplast
4. What is the chemical symbol for Sodium?
a) Na
b) So
c) N
d) S
5. Who developed the theory of relativity?
a) Isaac Newton
b) Albert Einstein
c) Galileo Galilei
d) Nikola Tesla
6. Which gas is most abundant in the Earth’s atmosphere?
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Hydrogen
7. What is the unit of electric current?
a) Volt
b) Ampere
c) Watt
d) Joule
8. Which vitamin is produced when the skin is exposed to sunlight?
a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin D
9. What is the main gas responsible for global warming?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
d) Argon
10. What is the pH value of pure water?
a) 5
b) 6
c) 7
d) 8
11. Which part of the plant conducts photosynthesis?
a) Root
b) Stem
c) Leaf
d) Flower
12. The process of cell division in bacteria is known as?
a) Mitosis
b) Meiosis
c) Binary Fission
d) Budding
13. Which planet has the shortest day in the Solar System?
a) Earth
b) Jupiter
c) Mars
d) Mercury
14. Which metal is liquid at room temperature?
a) Gold
b) Silver
c) Mercury
d) Iron
15. What is the chemical symbol for gold?
a) Au
b) Ag
c) Gd
d) Go
16. Which organ in the human body is responsible for filtering blood?
a) Heart
b) Liver
c) Kidney
d) Lungs
17. What is the hardest natural substance on Earth?
a) Iron
b) Diamond
c) Quartz
d) Graphite
18. Which vitamin is also known as ascorbic acid?
a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin D
19. What does DNA stand for?
a) Deoxyribonucleic Acid
b) Dioxyribonucleic Acid
c) Deoxynucleic Acid
d) Dinucleic Acid
20. Who is known as the father of modern chemistry?
a) Albert Einstein
b) Antoine Lavoisier
c) Isaac Newton
d) Galileo Galilei
21. What is the most common element in the Earth’s crust?
a) Silicon
b) Oxygen
c) Aluminum
d) Iron
22. What is the speed of light in a vacuum?
a) 300,000 km/s
b) 150,000 km/s
c) 75,000 km/s
d) 1,000 km/s
23. What is the chemical formula for methane?
a) CH4
b) CO2
c) C2H6
d) H2O
24. What is the boiling point of water at sea level?
a) 50°C
b) 75°C
c) 90°C
d) 100°C
25. Who discovered penicillin?
a) Alexander Fleming
b) Marie Curie
c) Louis Pasteur
d) Gregor Mendel
26. Which gas do plants absorb for photosynthesis?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
d) Methane
27. What is the study of fungi called?
a) Botany
b) Zoology
c) Mycology
d) Entomology
28. What is the smallest unit of life?
a) Organ
b) Tissue
c) Cell
d) Atom
29. Who proposed the laws of motion?
a) Galileo Galilei
b) Albert Einstein
c) Isaac Newton
d) Nicolaus Copernicus
30. What is the approximate age of the Earth?
a) 2.5 billion years
b) 4.5 billion years
c) 6.5 billion years
d) 1 billion years