Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature___________________?
(A) Rate of reaction is very low
(B) Very high pressure is required resulting in costly pressure vessel
(C) Space velocity of gas is very low resulting in decreased conversion
(D) None of these
Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of_____________ percent concentration?
(A) 25-28
(B) 52-54
(C) 75-80
(D) > 98
Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the _______________ process?
(A) Haber’s
(B) Stengel
(C) Le-chatelier’s
(D) Du-pont’s
Triple superphosphate is chemically represented as_____________________?
(A) CaF2.3Ca3(PO4)2
(B) 3Ca3(PO4)2
(C) Ca(PO3)2
(D) Ca(H2PO4)2
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an _______________________ reaction?
(A) Catalytic
(B) Endothermic
(C) Exothermic
(D) Autocatalytic
Reaction of dilute sulphuric acid with phosphate rock produces ____________________?
(A) Phosphoric acid
(B) Superphosphate
(C) Triple superphosphate
(D) Gypsum
Reaction of phosphate rock with 98% H2SO4 produces ______________________?
(A) Ortho-phosphoric acid
(B) Superphosphate
(C) White phosphorous
(D) None of these
Ammonia synthesis gas is produced from fuel oil by _________________?
(A) Steam reforming
(B) Hydro-cracking
(C) Partial oxidation
(D) Hydrogenation
Vetrocoke solution is_________________?
(A) A mixture of K2CO3 and As2O3
(B) K2SO4
(C) A mixture of Na2CO3 and As2O3
(D) Na2SO4
In _____________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed?
(A) Fauser-Montecatini
(B) Claude
(C) Uhde
(D) Kellogg