General Science Gk Questions

DIRECTIONS : Objective Question on General Science.
46. Amalgams are
  A.  Alloys which contain mercury as one of the contents
  B.  Alloys which contain carbon
  C.  Alloys which have great resistance to abrasion
  D.  Highly coloured alloys
47. Bell metal is an alloy of
  A.  Tin and copper
  B.  Nickel and copper
  C.  Zinc and copper
  D.  Brass and nickel
48. Which of the following was to be discovered first in the chromosphere of the sun?
  A.  Neon
  B.  Helium
  C.  Argon
  D.  Krypton
49. What are soaps?
  A.  Esters of heavy fatty acids
  B.  Mixture of glycerol and alcohols
  C.  Sodium or potassium salts of heavier fatty acids
  D.  Salts of silicates
50. Poison glands of snakes are homologous to
  A.  Sebaceous glands of mammals
  B.  Salivary glands of vertebrates
  C.  Electric organs of fishes
  D.  Stings of rays
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