GENERAL KNOWLEDGE | QUIZ | CHEMISTRY | 5 | QUESTIONS BASED ON CHEMISTRY

DIRECTIONS : Questions based on Chemistry.

21.     What is the main constituent of coal gas?
      A.  Oxygen
      B.  Water
      C.  Nitrogen
      D.  Methane
 Ans: D.

22.     For Which one of the following is the density maximum ?
      A. Chloroform
      B. Water
      C. Benzene
      D. Ice
 Ans: B.

23.     The chemicals used as a fixer in phosphorous is
      A.  borax
      B.  sodium thiosulpahte
      C.  sodium sulphate
      D.  ammonium persulphate
 Ans: B.

24.     Which one of the following does not contain silver?
      A.  horn silver
      B.  german silver
      C.  ruby silver
      D.  Lunar caustic
 Ans: B.

25.     Which one among the following is called philosophers wool?
      A.  zinc bromide
      B.  zinc nitrate
      C.  zinc oxide
      D.  zinc chloride
Ans: C.