GENERAL KNOWLEDGE | QUIZ | CHEMISTRY | 11 | QUESTIONS BASED ON CHEMISTRY

DIRECTIONS : Questions based on Chemistry.

51.     A polymeric substance used to make parachute is
      A.  Rayon
      B.  Viscose
      C.  Cotton
      D.  Terylene
 Ans: B.

52.     Carbon occurs in nature in the purest form as
      A.  Diamond
      B.  Graphite
      C.  Carbon black
      D.  Coal
  Ans: A.

53.     Which of the following substance is highly plastic?
      A.  Quartz
      B.  Mica
      C.  Clay
      D.  Granite
  Ans: C.

54.     Which one among the following is used as a moderator in nuclear reactors?
      A.  Ozone
      B.  Heavy hydrogen
      C.  Heavy water
      D.  Hydrogen peroxide
  Ans: C.

55.     Who discovered radioactivity?
      A.  Marie Curie
      B.  Roentgen
      C.  John Dalton
      D.  Henri Becquerel
 Ans: D.