Published 20 Mar, 2020

Mixed Brain Booster Science GK Quiz For Learners Set-2

by Nitroquiz Official | GK Quiz

This is the second part of the Science Brain Booster Quiz For Learners. There are a total of 50 questions similar to the first part from science and various sub-domains within it. All the questions are short and simple and frequently appear in top level examinations. Play the quiz test your preparation.

1. The type of reaction in which heat is released is known as
A. Endothermic Reaction
B. Exothermic Reaction
C. Thermite Reaction
D. Nuclear Reaction
2. Another type of reaction in which heat is absorbed is known as
A. Endothermic Reaction
B. Exothermic Reaction
C. Thermite Reaction
D. Nuclear Reaction
3. What is the pH level of saliva?
A. 7
B. 7.5
C. 8
D. 9
4. What is the pH level of milk?
A. 6.5 to 6.7
B. 5
C. 7
D. 8
5. The pH of the human blood is
A. 4
B. 7.5
C. 6
D. 11
6. Which of the following is the most abundant element in the human body?
A. Carbon
B. Calcium
C. Iron
D. Oxygen
7. Which organ of the human body filters the blood and controls the body fluid balance?
A. Liver
B. Kidneys
C. Pancreas
D. Lungs
8. Which organ detoxifies various metabolites, synthesizes proteins and produces biochemicals necessary for digestion and growth?
A. Heart
B. Liver
C. Kidney
D. Lungs
9. Which organ in the body maintains the sugar level in the blood?
A. Heart
B. Liver
C. Pancreas
D. Kidneys
10. The photoreceptor cells in the retina of the human eyes which is responsible for color vision is
A. Rod Cells
B. Cone Cells
C. Nerve Cells
D. Skin Cells
11. Elements with same atomic number but different mass numbers are called
A. Isotopes
B. Isobars
C. Isomers
D. Isoelectric
12. Two different elements with same mass number are termed as
A. Isotopes
B. Isobars
C. Isomers
D. Isoelectronic
13. A type of reaction in which an acid and a base reacts quantitatively which each other is known as
A. Decomposition Reaction
B. Substitution Reaction
C. Addition Reaction
D. Neutrilization Reaction
14. Which of the following is not a noble gas?
A. Krypton
B. Argon
C. Xenon
D. Bromine
15. A disease resulting from a lack of vitamin C or ascorbic acid
A. Goitre
B. Scurvy
C. Bone Fracture
D. Abetalipoproteinemia
16. What type of fertilizer is Urea?
A. Phosphatic
B. Nitrogenous
C. Ammonium
D. Amide
17. A toxic mercury sulfide mineral which is the only important ore of mercury is
A. Monazite
B. Cinnabar
C. Bauxite
D. Thermite
18. The SI unit of radioactivity is?
A. Hertz
B. Joule
C. Tesla
D. Becquerel
19. A dimensionless quantity representing the ratio of flow velocity to the local speed of sound is known as
A. Mach Number
B. Reynolds Number
C. Planck number
D. Poiseuille Ratio
20. Which of the following given fuels has the highest calorific value?
A. Wood
B. Kerosene
C. Coal
D. Coke
21. Which is the most abundant element on Sun?
A. Carbon
B. Iron
C. Hydrogen
D. Helium
22. The spongy tissue inside some bones, such as the hip and the thigh bones which contains stem cells that later convert into Red blood cells is known as
A. Bone Cavity
B. Bone Marrow
C. Tendons
D. Ligaments
23. What is the primary reason for sweating?
A. Releasing toxic waste
B. Maintaining Body Temperature
C. Cleaning skin
D. Releasing salts
24. The systematic study of humans, human behavior pattern and the societies in the past and present is called
A. Entomology
B. Psychology
C. Anthropology
D. Physiology
25. The systematic study of earthquakes, seismic waves and their movement within the earth is called?
A. Cosmology
B. Astrology
C. Seismology
D. Ornithology
26. The scientific study of Earth and its features like composition, structures and processes is known as?
A. Mathematics
B. History
C. Electronics
D. Geology
27. The branch of science that deals with study of plants and their species is known as?
A. Entomology
B. Botany
C. Zoology
D. Psychology
28. Which gland in our body is known as the master gland?
A. Thyroid
B. Pituitary
C. Adrenals
D. Pineal body
29. The first law of thermodynamics is also known as
A. Law of conservation of Momentum
B. Law of conservation of Energy
C. Law of conservation of Charge
D. Law of conservation of Mass
30. The internal energy of a fixed mass of an ideal gas depends on its
A. Pressure
B. Volume
C. Temperature
D. Container
31. Which of the following human body parts is affected by Pyorrhea?
A. Heart
B. Lungs
C. Throat
D. Teeth
32. The scientific study of Birds and their features is called?
A. Entomology
B. Psychology
C. Ornithology
D. Microbiology
33. Which of the following blood group type is known as "Universal Donor"?
A. O-(Negative)
B. O+ (Positive)
C. AB+ (Positive)
D. AB- (Negative)
34. Which of the following instruments is used to measure height relative to earth's surface?
A. Pyrometer
B. Altimeter
C. Compass
D. Voltmeter
35. Which subatomic particles has the most mass?
A. Neutron
B. Proton
C. Electron
D. Positron
36. Which of the following element is required for formation of Haemoglobinin in red blood cells?
A. Iron
B. Silver
C. Gold
D. Copper
37. The process of digestion of food starts from?
A. Stomach
B. Mouth
C. Intestines
D. Food Pipe
38. Which of the following is the primary component of dynamite?
A. Nitrous Oxide
B. Sulphuric Acid
C. Nitroglycerin
D. Hydrochloric Acid
39. At what temperature the Celsius scale and the Fahrenheit scale display the same temperature?
A. 0
B. -40
C. 50
D. -20
40. What is the average human body temperature?
A. 50 deg Celsius
B. 37deg Celsius
C. 100 deg Celsius
D. 20 deg Celsius
41. Which phenomenon of the light is associated with the sky appearing blue?
A. Reflection
B. Scattering
C. Interfernce
D. Polarization
42. The speed of light is
A. Infinite
B. 0 km/s
C. 3,00,000 km/s
D. Unknown
43. Which of the following famous scientist gave the relation between mass and energy?
A. Maxwell
B. Einstein
C. Newton
D. Tesla
44. Who was the first person to develop an induction motor that ran with Alternating current?
A. Thomas Edison
B. James Watt
C. Sadi Carnot
D. Nikola Tesla
45. The scientist who first discovered that the universe is expanding was
A. Stephen Hawkings
B. Edwin Hubble
C. Albert Einstein
D. Rutherford
46. Which of the following scientist first discovered the relation between Electricity & Magnetism?
A. James Maxwell
B. Heinrich Hertz
C. JJ Thomson
D. Coulomb
47. Who first discovered a cell?
A. Antonie van Leeuwenhoek
B. Gregor Mendel
C. Robert Hooke
D. Charles Darwin
48. Which of the following inventors invented the first communication device called telephone?
A. Thomas Edison
B. Samuel Morse
C. Alexander Graham Bell
D. Heinric Hertz
49. Which of the following scientist discovered that the most of the space in an atom is empty through its alpha particle scattering experiment?
A. JJ Thomson
B. W Roentgen
C. Rutherford
D. Avogadro
50. Which of the following scientist discovered the Electron?
A. J.J Thomson
B. Rutherford
C. Erwin Schrodinger
D. Louis De Broglie

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