Fertilizer Technology MCQs

186 MCQs  — Chemical Engineering MCQs  (Page 9 of 19)

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Catalyst used in the manufacture of NH3 by Haber’s process is finely divided________________?
A. Nickel
B. Iron
C. Vanadium pentoxide
D. Alumina
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_____________ is required more for leafy crops?
A. Nitrogen
B. Phosphorous
C. Potassium
D. Carbon
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Nitrogen content of calcium ammonium nitrate (CAN) is _____________ percent?
A. 10
B. 25
C. 50
D. 80
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Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?
A. Al2o3
B. Cr2o3
C. K2o
D. Mno
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Montecatini process is a widely used process for the manufacture of ___________________?
A. Urea
B. Calcium ammonium nitrate
C. Triple superphosphate
D. None of these
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NPK fertiliser is a _______________ fertiliser?
A. Complex
B. Mixed
C. Nitrogenous
D. Phosphatic
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Red phosphorous is changed into white phosphorous by______________________?
A. Heating in presence of light
B. Melting under pressure
C. Vaporisation followed by condensation
D. None of these
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Reaction of nitric acid and sulphuric acid with phosphate rock produces_________________?
A. Nitrophosphate
B. Diammonium phosphate
C. Tricresyl phosphate
D. Tributyl phosphate
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Phosphatic fertilisers_________________?
A. Are useful during early stage of the plant growth
B. Accelerate fruit formation in later stages of growth
C. Lessen the effect of excessive nitrogen application
D. None of these
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Reaction of ortho-phosphoric acid with soda ash produces______________?
A. Sodium tributyl phosphate (stpp)
B. Tricresyl phosphate
C. Tributyl phosphate
D. Nitrophosphate
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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