General Science - 4

46. Which one of the following is biodegradable?

(a) DDT       (b) Paper

(c) Plastic   (d) Aluminium

Answer:(b )

47. Centre for DNA finger printing in India is located at

(a) Pune (b) Hyderabad

(c) Mumbai (d) Udaipur

Answer:(b )

48. In elephants which teeth grow into tuskers ?

(a) Incisors of the lower jaw

 (b) Incisors of the upper jaw

(c) Canines of the lower jaw

(d) Canines of the upper jaw

Answer:(b )

49. Which one of the following system of the body is attacked by HIV?

(a) Reproductive (b) Immune

(c) Digestive (d) Nervous

Answer:(b )

50. The branch of science dealing with the improvement of human race is

(a) Ecology (b) eugenics

(c) Euphenics (d) Zoology

Answer:(b )

51. Water gas is a mixture of

(a) Carbon Dioxide  & Water

(b) Carbon Monoxide & Hydrogen

(c) Carbon Dioxide & Hydrogen

(d) Carbon Monoxide & Nitrogen

Answer:( b)

52. Which of the following is Glauber’s Salt?

(a) Na₂CO₃.10H₂O (b) Na₂SO₄.10H₂O

(c) K₂CO₃.10H₂O (d) K₂SO₄.1OH₂O

Answer:(b )

53. The metal present in Chlorophyll is

(a) Zinc (b) Iron

(c) Magnesium (d) Manganese

Answer:(c )

54. The acid which is called “Aqua Fortis” is

(a) Sulphuric Acid (b) Phosphoric Acid

(c) Carbonic Acid (d)Nitric Acid

Answer:( d)

55. The compound which is known as Inorganic Benzene is

(a) Borazole  (b) Diborane

(c) Borax (d) Boron Carbide

Answer:(a )

56. The metal used in high temperature thermometry is

(a) Mercury (b) Galium

(c) Germanium (d) Copper

Answer:(b )

57. An antiknock agent among the following is

(a) Tetrahydrofuran (b) DDT

(c) Tetra ethyl lead (d) TNT

Answer:( c)

58. Which of the following is known as the Universal solvent?

(a) Water (b) Benzene

(c) Sulphuric Acid (d) Nitric Acid

Answer:(a )

59. Cinnabar is the ore of

(a) Lead (b) Zinc

(c) Copper (d) Mercury

Answer:( d)

60. Contact Process and Lead Chamber Process are used in the manufacture of

(a) Nitric Acid (b) Ammonia

(c) Sulphuric Acid (d) Sodium Carbonate

Answer:(c )
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PSC GENERAL SCIENCE QUESTIONS AND ANSWERS
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4. General Science  Zoology
5. General Science Questions and Answers
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