Home ≫ General Knowledge ≫ Chemistry ≫ Page 11
101. Ethanol containing 5% water is known as
  A.  rectified spirit
  B.  denatured spirit
  C.  methylated alchol
  D.  power alchol
     
   
View Answer

102. Aqua regia is a 1:3 mixture,by volume,of
  A.  conc. hydrochloric acid and conc.nitric acid
  B.  conc. nitric acid and conc. hydrochloric acid
  C.  conc. nitric acid and conc.sulphuric acid
  D.  conc. sulphuric acid and conc. nitric acid
     
   
View Answer

103. What is the maximum Water Vapour content in the atmosphere?
  A.  2 to 3 per cent
  B.  4 to 5 per cent
  C.  3 to 4 per cent
  D.  5 to 6 per cent
     
   
View Answer

104. The amount of chlorine available in water after disinfection is called as
  A.  free chlorine
  B.  free available chlorine
  C.  residual chlorine
  D.  combined available chlorine
     
   
View Answer

105. What are the major pollutants of cigarette smoke?
  A.  Carbon monoxide and nicotine
  B.  Carbon monoxide and dioxin
  C.  Carbon monoxide and benzene
  D.  Dioxin and benzene
     
   
View Answer

106. Zinc sulphide is commonly used as
  A.  fungicide
  B.  herbicide
  C.  deodorant
  D.  rodenticide
     
   
View Answer

107. The main constituent of biogas is
  A.  methane
  B.  carbon dioxide
  C.  hydrogen
  D.  Nitrogen
     
   
View Answer

108. Litmus is obtained from
  A.  lichen
  B.  a fungus
  C.  an alga
  D.  a bacterium
     
   
View Answer

109. Major gaseous pollutant of the thermal power station is
  A.  H2S
  B.  SO2
  C.  NO2
  D.  NH3
     
   
View Answer

110. The tip of the match-stick contains
  A.  phosphorous pentoxide
  B.  white phosphorus
  C.  phosphorus trichloride
  D.  red phosphorus
     
   
View Answer

Copyright © 2020-2022. All rights reserved. Designed, Developed and content provided by Anjula Graphics & Web Desigining .