Fertilizer Technology MCQs

186 MCQs  — Chemical Engineering MCQs  (Page 15 of 19)

Attempt Fertilizer Technology Quiz
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an _______________________ reaction?
A. Catalytic
B. Endothermic
C. Exothermic
D. Autocatalytic
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Triple superphosphate is chemically represented as_____________________?
A. Caf2.3ca3(po4)2
B. 3ca3(po4)2
C. Ca(po3)2
D. Ca(h2po4)2
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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
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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
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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
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Fertiliser value of a nitrogenous fertiliser is expressed in terms of its ______________ content?
A. N2
B. Kno3
C. No2
D. Nho3
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Base suspension fertiliser essentially contains___________________?
A. 13% n2 and 43% p2o5
B. 43% n2 and 13% p2o5
C. 43% n2 and 13% k2o
D. 43% k2o and 43% p2o5
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The main constituent of rock phosphate is _____________________?
A. Mono-calcium phosphate
B. Di-calcium phosphate
C. Fluorspar
D. None of these
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Potassic fertilisers do not promote the development of ______________________?
A. Stems & leaves during early stage of plant growth
B. Starches of potatoes & grains
C. Sugar of fruits & vegetables
D. Fibrous materials of plants
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Heating of ortho-phosphoric acid to 250°C produces___________________?
A. Meta-phosphoric acid
B. Pyrophosphoric acid
C. No change in it
D. None of these
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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