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TRB MODEL QUESTIONS FOR CHEMISTRY

TRB Model Questions
46. Calcium sulphate is known as
 
  • A. Blue Vitriol
  • B. Epsom Salt
  • C. Potash alum
  • D. Gypsum salt
 
47. H2SO4 is used in the ---- industry.
 
  • A. Oil refining
  • B. Explosive
  • C. Fertilizer
  • D. All the above
 
 
48. Epsom salt is chemically known as
 
  • A. Copper sulphate
  • B. Ferrous sulphate
  • C. Magnesium sulphate
  • D. Calcium sulphate
 
49. Sulphuric acid is
 
  • A. Monobasic
  • B. Dibasic
  • C. Tribasic
  • D. Tetrabasic
 
50. The Boiling point of sulphuric acid
 
  • A. 320° C
  • B. 420° C
  • C. 593° C
  • D. 100° C