Chemical Industry Inorganic Chemical Phosphoric Acid Online Exam Quiz
Chemical Industry Inorganic Chemical Phosphoric Acid GK Quiz. Question and Answers related to Chemical Industry Inorganic Chemical Phosphoric Acid. MCQ (Multiple Choice Questions with answers about Chemical Industry Inorganic Chemical Phosphoric Acid
What temperature must be maintained in the reactor used in wet process by H2SO4 leaching?
Options
A : 100°C
B : 80°C
C : 150°C
D : 120°C
Which solvent is used as make-up for the extraction of H3PO4 from CaCl2 solution?
Options
A : Acetone
B : Benzene
C : Water
D : Amyl alcohol
Which electrostatic precipitator element is used to resist free HF steel action?
Options
A : Arsenic
B : Mercury
C : Graphite
D : Selenium
Which of the following is not a reaction of wet process method of production of phosphoric acid?
Options
A : Ca3 (PO4)2 + 3H2SO4 + 6H2O ? 2H3PO4 + 3(CaSO4·2H2O)
B : 6HF + SiO2 ? H2 SiF6 + 2H2O
C : Ca3 (PO4)2 + 6HCl + 6H2O ? 2H3PO4 + 3CaCl2
D : P2 O5 + 3H2O ? 2H3PO4
Which of the following is used as reducing agent in electric furnace process (direct conversion at plant site)?
Options
A : Coke
B : Graphite
C : Nascent hydrogen
D : Sodium amalgam
Ortho phosphoric acid is completely miscible with water.
Options
A : False
B : True
C :
D :
Which material is used in the construction of storage tanks in wet process by H2SO4 leaching?
Options
A : PVC coated steel
B : Steel lined with acid proof brick
C : Stainless steel
D : Rubber lined steel
Which evaporator is used to concentrate the dilute acid produced in wet process method by H2SO4 leaching?
Options
A : Single effect evaporator
B : Film evaporator
C : Triple effect evaporator
D : Circulation evaporator
Which is the economical process for manufacture of phosphoric acid in India?
Options
A : Wet process by H2SO4 leaching
B : Wet process by HCl leaching
C : Electric furnace processes
D : Blast furnace process
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