1. The normal human blood pressure is approximately:
a) 100/60 mmHgb) 120/80 mmHgc) 140/90 mmHgd) 160/100 mmHg
2. Which gas is essential for photosynthesis?
a) Oxygenb) Carbon dioxidec) Nitrogend) Hydrogen
3. The chemical symbol of Mercury is:
a) Meb) Mrc) Hgd) Mc
4. Which vitamin helps in blood clotting?
a) Vitamin Ab) Vitamin Kc) Vitamin Cd) Vitamin D
5. The fastest rotating planet is:
a) Jupiterb) Venusc) Earthd) Saturn
6. The instrument used to measure depth of ocean is:
a) Barometerb) Sonarc) Periscoped) Telescope
7. Acid present in curd is:
a) Oxalic acidb) Lactic acidc) Acetic acidd) Tartaric acid
8. The SI unit of Force is:
a) Pascalb) Joulec) Newtond) Watt
9. Cloudburst is usually caused by which type of clouds?
a) Stratusb) Cirrusc) Cumulonimbusd) Altostratus
10. The hardest substance found in human body is:
a) Boneb) Dentinec) Enameld) Cartilage
11. Which element is used in making Pencil lead?
a) Carbonb) Graphitec) Leadd) Silicon
12. The chemical formula of Baking soda is:
a) Na₂CO₃b) NaHCO₃c) CaCO₃d) K₂CO₃
13. Which vitamin is also known as Ascorbic Acid?
a) Vitamin Ab) Vitamin Cc) Vitamin B₁₂d) Vitamin D
14. Which planet is known as the "Morning Star"?
a) Venusb) Marsc) Mercuryd) Saturn
15. The unit of electric current is:
a) Ohmb) Amperec) Voltd) Watt
16. Which gas protects us from harmful UV rays?
a) Oxygenb) Nitrogenc) Ozoned) Carbon dioxide
17. The chemical symbol of Lead is:
a) Ldb) Pbc) Led) La
18. Which acid is present in ant sting?
a) Formic acidb) Acetic acidc) Oxalic acidd) Citric acid
19. Which part of the plant conducts food?
a) Xylemb) Phloemc) Root hairsd) Stomata
20. The freezing point of water in Kelvin is:
a) 0 Kb) 100 Kc) 273 Kd) 373 K
21. Instrument used to measure temperature:
a) Barometerb) Thermometerc) Hygrometerd) Manometer
22. Which metal is liquid at room temperature?
a) Ironb) Sodiumc) Mercuryd) Zinc
23. The speed of light in vacuum is approximately:
a) 3×10⁶ m/sb) 3×10⁷ m/sc) 3×10⁸ m/sd) 3×10⁹ m/s
24. Which gas is used in fire extinguishers?
a) Oxygenb) Carbon dioxidec) Nitrogend) Helium
25. Formula of Sulphuric acid is:
a) H₂SO₃b) H₂SO₄c) HNO₃d) HCl
26. The largest gland in human body is:
a) Pancreasb) Liverc) Thyroidd) Pituitary
27. Which vitamin is produced by sunlight in skin?
a) Vitamin Ab) Vitamin Cc) Vitamin Dd) Vitamin E
28. Which gas is responsible for Greenhouse Effect?
a) Nitrogenb) Carbon dioxidec) Oxygend) Helium
29. 100°C is equal to how many Kelvin?
a) 100 Kb) 273 Kc) 373 Kd) 2730 K
30. Which part of plant takes in oxygen for respiration?
a) Rootsb) Stemc) Leavesd) Flowers
31. The process by which plants lose water through leaves is:
a) Photosynthesisb) Transpirationc) Germinationd) Respiration
32. Which gas is filled in balloons to make them float?
a) Oxygenb) Heliumc) Hydrogend) Nitrogen
33. The boiling point of water in Celsius is:
a) 0°Cb) 50°Cc) 100°Cd) 212°C
34. Instrument to measure intensity of light:
a) Photometerb) Barometerc) Ammeterd) Hygrometer
35. Acid present in Grapes is:
a) Citric acidb) Tartaric acidc) Acetic acidd) Oxalic acid
36. Which blood cells fight against infection?
a) RBCb) WBCc) Plateletsd) Plasma
37. The study of earthquakes is called:
a) Astronomyb) Seismologyc) Geologyd) Ecology
38. Formula of Ammonia is:
a) NH₂b) NH₃c) N₂Hd) NO₂
39. Which vitamin prevents night blindness?
a) Vitamin Ab) Vitamin Cc) Vitamin Dd) Vitamin K
40. Which layer of atmosphere is nearest to Earth?
a) Stratosphereb) Tropospherec) Mesosphered) Ionosphere
41. Which metal is used in making Thermometers?
a) Ironb) Mercuryc) Copperd) Silver
42. The main gas in Earth’s atmosphere is:
a) Oxygenb) Nitrogenc) Carbon dioxided) Helium
43. Which unit is used to measure energy?
a) Wattb) Joulec) Newtond) Pascal
44. The process of conversion of liquid into vapor is called:
a) Sublimationb) Condensationc) Evaporationd) Filtration
45. Acid present in tea is:
a) Tannic acidb) Acetic acidc) Oxalic acidd) Malic acid
46. Which organ purifies blood in human body?
a) Heartb) Lungsc) Kidneysd) Pancreas
47. The study of stars and planets is called:
a) Astrologyb) Astronomyc) Seismologyd) Meteorology
48. Which vitamin is also known as "Sunshine vitamin"?
a) Vitamin Ab) Vitamin Cc) Vitamin Dd) Vitamin K
49. Formula of Nitric acid is:
a) HNO₂b) HNO₃c) HCld) H₂SO₄
50. Which gas causes acid rain?
a) Oxygenb) Nitrogenc) Sulphur dioxided) Helium
51. The gas used in electric bulbs is:
a) Oxygenb) Argonc) Hydrogend) Helium
52. Which vitamin is produced in the skin by sunlight?
a) Vitamin Ab) Vitamin Bc) Vitamin Cd) Vitamin D
53. The chemical formula of Common Salt is:
a) NaOHb) NaClc) KCld) CaCl₂
54. The smallest bone in the human body is:
a) Stapesb) Femurc) Tibiad) Radius
55. Which gas is essential for the process of photosynthesis?
a) Oxygenb) Carbon Dioxidec) Nitrogend) Hydrogen
56. The energy possessed by a moving body is called:
a) Potential Energyb) Kinetic Energyc) Heat Energyd) Chemical Energy
57. The largest gland in the human body is:
a) Pancreasb) Liverc) Kidneyd) Thyroid
58. The chemical formula of Sulphuric Acid is:
a) HClb) H₂SO₄c) HNO₃d) H₂CO₃
59. Which law states that the rate of diffusion of a gas is inversely proportional to the square root of its molar mass?
a) Boyle’s Lawb) Graham’s Lawc) Charles’ Lawd) Dalton’s Law
60. The energy required to remove an electron completely from an atom is called:
a) Work functionb) Electron affinityc) Ionization energyd) Electronegativity
61. Which organelle is responsible for protein packaging and secretion in eukaryotic cells?
a) Ribosomeb) Golgi apparatusc) Endoplasmic reticulumd) Lysosome
62. The half-life of a radioactive substance depends on:
a) Pressureb) Temperaturec) Nature of the substanced) External field
63. Which scientist is credited with discovering the neutron?
a) J. J. Thomsonb) James Chadwickc) Ernest Rutherfordd) Niels Bohr
64. The critical angle for total internal reflection of light depends on:
a) Frequency onlyb) Wavelength onlyc) Refractive indicesd) Angle of incidence
65. Which vitamin deficiency causes “pernicious anemia”?
a) Vitamin Ab) Vitamin B12c) Vitamin Cd) Vitamin D
66. In a nuclear reactor, the function of a moderator is to:
a) Stop chain reactionb) Absorb neutronsc) Slow down neutronsd) Control temperature
67. Which of the following is a noble metal?
a) Copperb) Platinumc) Irond) Zinc
68. What is the approximate surface temperature of the Sun?
a) 2,000 Kb) 5,800 Kc) 10,000 Kd) 20,000 K
69. The human retina contains two types of photoreceptor cells:
a) Rods and Conesb) Discs and Tubesc) Filaments and Fibersd) Beams and Bars
70. Which of the following particles has zero rest mass?
a) Protonb) Neutronc) Photond) Electron
71. The SI unit of inductance is:
a) Voltb) Henryc) Teslad) Weber
72. Which plant hormone is responsible for ripening of fruits?
a) Auxinb) Gibberellinc) Cytokinind) Ethylene
73. The ozone layer is mainly found in which layer of the atmosphere?
a) Troposphereb) Stratospherec) Mesosphered) Thermosphere
74. The primary constituent of natural gas is:
a) Butaneb) Methanec) Propaned) Ethane
75. Which planet has the fastest rotation in the solar system?
a) Jupiterb) Saturnc) Neptuned) Earth
76. In Einstein’s mass–energy relation, E = mc², the “c” represents:
a) Charge of electronb) Speed of lightc) Coulomb constantd) Critical angle
77. The study of fossils is known as:
a) Ecologyb) Paleontologyc) Archaeologyd) Geology
78. Which blood group is called the “universal donor”?
a) Ab) Bc) ABd) O negative
79. The speed of sound is maximum in:
a) Airb) Waterc) Steeld) Vacuum
80. The most stable form of carbon is:
a) Diamondb) Graphitec) Fullerened) Carbon nanotube
81. Who is known as the father of modern periodic table?
a) Dobereinerb) Mendeleevc) Moseleyd) Dalton
82. The Richter scale is used to measure:
a) Wind speedb) Earthquake intensityc) Atmospheric pressured) Rainfall
83. Which acid is present in ant sting?
a) Acetic acidb) Formic acidc) Lactic acidd) Oxalic acid
84. Which is the heaviest naturally occurring element?
a) Uraniumb) Leadc) Thoriumd) Polonium
85. The hormone insulin is secreted by:
a) Liverb) Kidneyc) Pancreasd) Stomach
86. The most abundant gas in Earth’s atmosphere is:
a) Oxygenb) Nitrogenc) Carbon dioxided) Argon
87. The term “LASER” stands for:
a) Light Amplification by Stimulated Emission of Radiationb) Low Absorption Stimulated Emission of Radiationc) Light And Sound Emission Radiationd) Linear Amplification by Simple Emission Radiation
88. Which part of the brain controls balance and coordination?
a) Cerebrumb) Cerebellumc) Medullad) Hypothalamus
89. The red color of Mars is due to the presence of:
a) Copper oxideb) Iron oxidec) Carbon monoxided) Silicon oxide
90. Which branch of physics deals with motion of fluids?
a) Thermodynamicsb) Fluid mechanicsc) Electrodynamicsd) Kinematics
91. Which organ in the human body produces bile?
a) Pancreasb) Stomachc) Liverd) Gall bladder
92. Which law relates the volume of gas to its absolute temperature at constant pressure?
a) Boyle’s Lawb) Charles’ Lawc) Avogadro’s Lawd) Dalton’s Law
93. The first artificial satellite launched into space was:
a) Apollo 11b) Sputnik 1c) Explorer 1d) Vostok 1
94. Which blood vessels carry blood away from the heart?
a) Veinsb) Arteriesc) Capillariesd) Venules
95. Which instrument is used to measure humidity?
a) Barometerb) Hygrometerc) Anemometerd) Altimeter
96. The Nobel Prize in Physics 1921 was awarded to Albert Einstein for:
a) Theory of relativityb) Photoelectric effectc) Brownian motiond) Quantum mechanics
97. Which gas causes acid rain when dissolved in water?
a) Oxygenb) Nitrogenc) Sulfur dioxided) Carbon monoxide
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