The Stranger Gas and Heavy Water

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 1. Which Noble Gas is known as ' Stranger Gas'?

  • Xenon
2. Force of attraction between the molecules of different substances is called..
  • Adhesive Force
3. The hearing function is associated with which part of the Human Brain?
  • Temporal Lobe (Cortex)
4. Which Acid is called as oil of vitriol?
  • Sulphuric Acid
5. Diode Bulb was discovered by?
  • Sir J.S. Fleming
6. The gland known as ' Master Gland' in human body?
  • Pituitary gland
7. Which instrument is used to measure change in volume of substances?
  • Dilatometer
8. What is the SI unit of magnetic flux?
  • Weber
9. Human saliva contains the enzyme know as?
  • Ptyalin
10. Which mineral element is found in chlorophyll?
  • Magnesium
11. What is the SI unit of luminous intensity?
  • Candela
12. Study of trees is called?
  • Dendrology
13. Which instrument is used to measure the scattering of light by particles suspended in a liquid?
  • Nephelometer
14. The term 'catalysis' was coined by?
  • Jons Jakob Berzelius
15. The PH value of human blood is?
  • 7.35 to 7.45
16. Who explained about the blood circulation for the first time?
  • William Harvey
17. Acceleration acts always in the direction of the?
  • Net Force
18. Temporary hardness of water is caused because of which compounds?
  • Calcium bicarbonate 
  • Magnesium bicarbonate
19. Who gave the first experimental value of G?
  • Henry Cavendish
20 The part of human eye which regulates the quantum of light entering is?
  • Iris
21. Astigmatism can be corrected by using which type of lens?
  • Cylindrical lenses
22. What is used in nuclear reactor as a moderator. It is also known as Heavy Water?
  • Deuterium Oxide (D2O)
23. The value of which quantity remains same in all system of units?
  • Specific Gravity
24. Which part of human brain is the regulating center for swallowing and vomiting?
  • Medulla Oblongata
25. What is the chemical name of Picric Acid?
  • Trnitrophenol (TNP)
26. Who had showed that the electric and magnetic waves are equal in vacuum?
  • James Clerk Maxwell
27. When did Einstein propose that matter can be converted into energy?
  • 1905
28. James D. Watson, a Nobel prize winning scientist is expert in the field of ?
  • Genetics 
29. Germanium, an ultra-pure metal is purified by which method?
  • Zone refining
30. What is the unit of length used in measuring wavelength of light?
  • Angstrom
31. An abnormally increased concentration of haemoglobin in the blood, either through reduction of plasma volume or increase in red cell numbers?
  • Polycythemia
32. Magnifying glass is made of which type of lens?
  • Convex lens
33. The oral polio vaccine was discovered by?
  • Jonas Salk
34. Urea, the first organic compound was synthesized in the laboratory by?
  • Friedrich Wohler
35. Which enzyme is present in all members of the animal kingdom except Protozoa?
  • Amylase
36. Ascariasis is caused by?
  • Ascaris lumbricoides 
37. The hydraulic brake used in automobiles is a direct application of?
  • Pascal's Law.
38. Which was the first element to be produced after Big Bang?
  • Hydrogen
39. Which gas is used in fire extinguishers?
  • Carbon dioxide
40. One barrel of oil is equal to how many liters?
  • 158.987
41. Radio waves of constant amplitude can be generated with an?
  • Oscillator
42. The working of quartz crystal in the watch is based on which effect?
  • Piezoelectric Effect
43. The chemical compound is also known as "Baryta Water"?
  • Barium Hydroxide
44. The laws of electrolysis were proposed by?
  • Michael Faraday
45. Part of the human eye, opening in the center of the iris that determines the quantity of light entering into the eye?
  • Pupil
46. Which part of the human brain control Motor skills of the body?
  • Frontal lobes
47. What is the chemical in the brain that is associated with the pleasure and reward centers of the brain?
  • Dopamine

Note: Contents published here has been taken from various sources for reference purpose. Readers are advised to do their own study before using them in any medium.

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