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MCQs

Total Questions : 3103 | Page 307 of 311 pages
Question 3061. Le-Blanc process is a primitive process for the manufacture of___________________?
  1.    Caustic soda
  2.    Soda ash
  3.    Bromine from sea water
  4.    Hydrochloric acid
 Discuss Question
Answer: Option B. -> Soda ash
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3062. Silicon carbide is a/an_______________?
  1.    Adhesive
  2.    Abrasive
  3.    Type of glass
  4.    Brittle material
 Discuss Question
Answer: Option B. -> Abrasive
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3063. Blue vitriol is chemically___________________?
  1.    Copper sulphate
  2.    Ferrous sulphate
  3.    Copper nitrate
  4.    Aluminium sulphate
 Discuss Question
Answer: Option A. -> Copper sulphate
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3064. Free alkali in a toilet soap is _______________ that in a laundry shop ?
  1.    Less than
  2.    More than
  3.    Same
  4.    None of these
 Discuss Question
Answer: Option A. -> Less than
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3065. Plaster of Paris is __________________?
  1.    CaSO4.½H2O
  2.    Used for setting of broken bones
  3.    Both A. and B.
  4.    Same as gypsum
 Discuss Question
Answer: Option C. -> Both A. and B.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3066. Sulphuric acid is mainly used in the _______________ industry ?
  1.    Fertiliser
  2.    Steel
  3.    Paper
  4.    Paint
 Discuss Question
Answer: Option A. -> Fertiliser
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3067. Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is __________________?
  1.    A slow reaction
  2.    A discontinuous reaction (requiring regeneration of iron by water gas intermittently)
  3.    Still in development stage (by employing fluidised bed technique)
  4.    All A , B. and C
 Discuss Question
Answer: Option D. -> All A , B. and C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3068. Which of the following is a detergent ?
  1.    Fatty alcohol
  2.    Alkyl benzene sulphonate (ABS)
  3.    Fatty acids
  4.    Methylene chloride
 Discuss Question
Answer: Option B. -> Alkyl benzene sulphonate (ABS)
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3069. Absorption of SO3 in 97% H2SO4 is_______________?
  1.    Exothermic
  2.    Endothermic
  3.    Not possible
  4.    None of these
 Discuss Question
Answer: Option A. -> Exothermic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3070. Washing soda is chemically represented by _________________?
  1.    Na2CO3
  2.    Na2CO3.H2O
  3.    Na2CO3.10H2O
  4.    NaHCO3
 Discuss Question
Answer: Option C. -> Na2CO3.10H2O
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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