Type : II Basic General Knowledge

basic general knowledge questions
DIRECTIONS : Basic General Knowledge Questions and Answers
41. Which of the following colours in the visible spectrum has maximum range?
  A.  Orange
  B.  Indigo
  C.  Violet
  D.  Red
42. Caustic Soda is
  A.  NaOH
  B.  NaCl
  C.  NaHCO3
  D.  Na2CO3

43. Which of the following gases is lighter than air?
  A.  Oxygen
  B.  Ammonia
  C.  Carbon Dioxide
  D.  Chlorine
44. The metal used in storage batteries is
  A.  Iron
  B.  Copper
  C.  Lead
  D.  Tin
45. Which of the following is the lighest gas?
  A. Ammonia
  B. Carbon Dioxide
  C. Nitrogen
  D. Hydrogen