01 | What is the pH value of pure water at 25°C? (A) 5.0 (B) 7.0 (C) 8.2 (D) 14.0 |
02 | Which element has the highest electronegativity? (A) Oxygen (B) Chlorine (C) Fluorine (D) Nitrogen |
03 | What is the SI unit of luminous intensity? (A) Candela (B) Lux (C) Lumen (D) Watt |
04 | Which gas is primarily responsible for the greenhouse effect on Earth? (A) Oxygen (B) Carbon dioxide (C) Nitrogen (D) Argon |
05 | What is the chemical formula for ozone? (A) O2 (B) O3 (C) O4 (D) HO2 |
06 | Which part of the human brain controls balance and coordination? (A) Cerebrum (B) Medulla (C) Cerebellum (D) Thalamus |
07 | What is the hardest naturally occurring substance on Earth? (A) Diamond (B) Quartz (C) Corundum (D) Tungsten |
08 | Which blood type is considered the universal donor? (A) O negative (B) A positive (C) AB positive (D) B negative |
09 | What is the speed of light in a vacuum? (A) 300 km/s (B) 3,000 km/s (C) 299,792 km/s (D) 30,000 km/s |
10 | Which scientist discovered the law of gravity? (A) Albert Einstein (B) Isaac Newton (C) Galileo Galilei (D) Nikola Tesla |
11 | What is the main component of natural gas? (A) Propane (B) Methane (C) Butane (D) Ethane |
12 | Which planet has the most moons in our solar system? (A) Earth (B) Saturn (C) Jupiter (D) Neptune |
13 | What is the chemical symbol for gold? (A) Go (B) Gd (C) Au (D) Ag |
14 | Which vitamin is produced by the human body when exposed to sunlight? (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K |
15 | What is the largest organ in the human body? (A) Liver (B) Brain (C) Skin (D) Lungs |
16 | Which gas makes up about 78% of Earth's atmosphere? (A) Nitrogen (B) Oxygen (C) Carbon dioxide (D) Argon |
17 | What is the chemical formula for table salt? (A) NaClO (B) NaCl (C) Na2Cl (D) NaHCl |
18 | Which particle in an atom has a negative charge? (A) Proton (B) Neutron (C) Electron (D) Nucleon |
19 | What is the boiling point of water at sea level? (A) 90°C (B) 100°C (C) 110°C (D) 120°C |
20 | Which scientist proposed the theory of relativity? (A) Albert Einstein (B) Isaac Newton (C) Stephen Hawking (D) Niels Bohr |
21 | What is the main function of red blood cells? (A) Fight infection (B) Transport oxygen (C) Digest food (D) Produce hormones |
22 | Which metal is liquid at room temperature? (A) Sodium (B) Aluminum (C) Mercury (D) Iron |
23 | What is the study of fossils called? (A) Geology (B) Biology (C) Paleontology (D) Archaeology |
24 | Which planet is known as the Red Planet? (A) Venus (B) Mars (C) Jupiter (D) Saturn |
25 | What is the chemical symbol for iron? (A) Ir (B) Fe (C) In (D) Fr |
26 | Which organ produces insulin in the human body? (A) Liver (B) Stomach (C) Pancreas (D) Kidney |
27 | What is the most abundant gas in the Sun? (A) Hydrogen (B) Helium (C) Oxygen (D) Nitrogen |
28 | Which scientist discovered penicillin? (A) Marie Curie (B) Alexander Fleming (C) Louis Pasteur (D) Robert Koch |
29 | What is the unit of electrical resistance? (A) Volt (B) Ampere (C) Ohm (D) Watt |
30 | Which vitamin is essential for blood clotting? (A) Vitamin A (B) Vitamin B12 (C) Vitamin C (D) Vitamin K |
31 | What is the process by which plants make their own food called? (A) Respiration (B) Photosynthesis (C) Transpiration (D) Fermentation |
32 | Which of the following is NOT a noble gas? (A) Helium (B) Neon (C) Chlorine (D) Argon |
33 | What is the main component of the Sun’s energy production? (A) Nuclear fusion (B) Nuclear fission (C) Combustion (D) Chemical reactions |
34 | Which bone is the longest in the human body? (A) Humerus (B) Femur (C) Tibia (D) Radius |
35 | What is the chemical formula for sulfuric acid? (A) HCl (B) HNO3 (C) H2SO4 (D) H3PO4 |
36 | Which planet has the most extensive ring system? (A) Jupiter (B) Saturn (C) Uranus (D) Neptune |
37 | What is the smallest unit of life? (A) Atom (B) Molecule (C) Cell (D) Organelle |
38 | Which scientist formulated the laws of motion? (A) Galileo (B) Newton (C) Einstein (D) Kepler |
39 | What is the freezing point of water in Fahrenheit? (A) 0°F (B) 32°F (C) 100°F (D) 212°F |
40 | Which part of the eye controls the amount of light entering? (A) Retina (B) Lens (C) Iris (D) Cornea |
41 | What is the chemical symbol for potassium? (A) Pt (B) P (C) K (D) Po |
42 | Which gas is used in balloons to make them float? (A) Oxygen (B) Nitrogen (C) Helium (D) Hydrogen |
43 | What is the primary function of white blood cells? (A) Fight infections (B) Carry oxygen (C) Digest food (D) Store energy |
44 | Which of these is NOT a type of RNA? (A) mRNA (B) tRNA (C) DNA (D) rRNA |
45 | What is the Earth’s outermost layer called? (A) Mantle (B) Crust (C) Core (D) Lithosphere |
46 | Which scientist discovered X-rays? (A) Marie Curie (B) Wilhelm Röntgen (C) Thomas Edison (D) Nikola Tesla |
47 | What is the chemical formula for ammonia? (A) NH2 (B) NH3 (C) NO2 (D) N2H4 |
48 | Which planet is known for its Great Red Spot? (A) Mars (B) Jupiter (C) Saturn (D) Neptune |
49 | What is the main component of Earth’s core? (A) Silicon (B) Iron (C) Nickel (D) Magnesium |
50 | Which vitamin deficiency causes scurvy? (A) Vitamin A (B) Vitamin D (C) Vitamin C (D) Vitamin B12 |
51 | What is the chemical symbol for silver? (A) Si (B) Ag (C) Au (D) Sr |
52 | Which of these is a greenhouse gas? (A) Oxygen (B) Nitrogen (C) Methane (D) Argon |
53 | What is the largest planet in our solar system? (A) Earth (B) Saturn (C) Jupiter (D) Neptune |
54 | Which organ filters blood in the human body? (A) Heart (B) Lungs (C) Kidneys (D) Liver |
55 | What is the chemical formula for carbon dioxide? (A) CO (B) CO2 (C) C2O (D) C2O2 |
56 | Which scientist proposed the theory of evolution? (A) Gregor Mendel (B) Charles Darwin (C) Alfred Wallace (D) Louis Pasteur |
57 | What is the unit of frequency? (A) Ohm (B) Watt (C) Hertz (D) Volt |
58 | Which metal is the best conductor of electricity? (A) Aluminum (B) Silver (C) Copper (D) Gold |
59 | What is the chemical symbol for sodium? (A) So (B) Sd (C) Na (D) No |
60 | Which blood vessel carries oxygenated blood from the lungs to the heart? (A) Aorta (B) Pulmonary vein (C) Pulmonary artery (D) Vena cava |
61 | What is the chemical formula for hydrogen peroxide? (A) H2O (B) H2O2 (C) HO2 (D) H3O |
62 | Which planet is closest to the Sun? (A) Mercury (B) Venus (C) Earth (D) Mars |
63 | What is the main function of mitochondria? (A) Protein synthesis (B) Energy production (C) Waste removal (D) DNA storage |
64 | Which scientist discovered radioactivity? (A) Henri Becquerel (B) Marie Curie (C) Ernest Rutherford (D) Niels Bohr |
65 | What is the chemical symbol for lead? (A) Ld (B) Pb (C) Le (D) Pl |
66 | Which of these is NOT a fundamental force of nature? (A) Gravity (B) Electromagnetism (C) Friction (D) Strong nuclear force |
67 | What is the chemical formula for methane? (A) CH2 (B) CH4 (C) C2H6 (D) CO2 |
68 | Which gland is known as the "master gland"? (A) Thyroid (B) Pituitary (C) Adrenal (D) Pancreas |
69 | What is the chemical symbol for tungsten? (A) Tu (B) Tn (C) W (D) Tg |
70 | Which of these is a non-renewable energy source? (A) Solar (B) Wind (C) Coal (D) Hydroelectric |
71 | What is the chemical formula for glucose? (A) C6H10O5 (B) C6H12O6 (C) C12H22O11 (D) CH2O |
72 | Which planet has the longest day (rotation period)? (A) Mercury (B) Venus (C) Jupiter (D) Mars |
73 | What is the chemical symbol for uranium? (A) Ur (B) Um (C) U (D) Un |
74 | Which of these is a vector quantity? (A) Mass (B) Temperature (C) Force (D) Energy |
75 | What is the chemical formula for nitric acid? (A) HCl (B) HNO3 (C) H2SO4 (D) H3PO4 |
76 | Which scientist discovered the electron? (A) Ernest Rutherford (B) J.J. Thomson (C) James Chadwick (D) Niels Bohr |
77 | What is the chemical symbol for tin? (A) Ti (B) Sn (C) Tn (D) Si |
78 | Which of these is NOT a type of electromagnetic wave? (A) X-ray (B) Microwave (C) Sound wave (D) Gamma ray |
79 | What is the chemical formula for calcium carbonate? (A) CaO (B) Ca(OH)2 (C) CaCO3 (D) CaCl2 |
80 | Which planet has the highest average surface temperature? (A) Mercury (B) Venus (C) Earth (D) Mars |
81 | What is the chemical symbol for zinc? (A) Zi (B) Zn (C) Zc (D) Z |
82 | Which of these is a scalar quantity? (A) Speed (B) Velocity (C) Acceleration (D) Force |
83 | What is the chemical formula for propane? (A) CH4 (B) C2H6 (C) C3H8 (D) C4H10 |
84 | Which scientist is known for the uncertainty principle? (A) Niels Bohr (B) Werner Heisenberg (C) Max Planck (D) Erwin Schrödinger |
85 | What is the chemical symbol for nickel? (A) Nc (B) Nk (C) Ni (D) Ne |
86 | Which of these is NOT a subatomic particle? (A) Proton (B) Neutron (C) Molecule (D) Electron |
87 | What is the chemical formula for ethanol? (A) CH3OH (B) C2H5OH (C) C3H7OH (D) C4H9OH |
88 | Which planet has the most extreme seasons due to its axial tilt? (A) Mars (B) Jupiter (C) Uranus (D) Saturn |
89 | What is the chemical symbol for barium? (A) Bm (B) Br (C) Ba (D) Be |
90 | Which of these is NOT a unit of power? (A) Watt (B) Horsepower (C) Joule (D) Kilowatt |
91 | What is the chemical formula for phosphoric acid? (A) H2SO4 (B) HNO3 (C) H3PO4 (D) HCl |
92 | Which scientist first measured the speed of light? (A) Galileo (B) Ole Rømer (C) Isaac Newton (D) Albert Einstein |
93 | What is the chemical symbol for cobalt? (A) Cb (B) Ct (C) Co (D) Cl |
94 | Which of these is NOT a type of galaxy? (A) Spiral (B) Elliptical (C) Cubic (D) Irregular |
95 | What is the chemical formula for sulfur dioxide? (A) SO (B) SO2 (C) SO3 (D) S2O |
96 | Which scientist discovered the neutron? (A) Ernest Rutherford (B) J.J. Thomson (C) James Chadwick (D) Niels Bohr |
97 | What is the chemical symbol for manganese? (A) Mg (B) Ma (C) Mn (D) Ms |
98 | Which of these is NOT a fundamental particle in the Standard Model? (A) Quark (B) Lepton (C) Graviton (D) Boson |
99 | What is the chemical formula for acetic acid? (A) HCl (B) H2SO4 (C) CH3COOH (D) HNO3 |
100 | Which scientist formulated the laws of planetary motion? (A) Galileo (B) Newton (C) Kepler (D) Copernicus |
See Also: General Knowledge MCQs for FPSC, PPSC, SPSC.