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.Management Sciences
Category: Fertilizer Technology
The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is _____________ fertiliser?
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A. Nitrogenous
B. Phosphatic
C. Potassic
D. None of these
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of ____________ this is normally not done?
A. Increased biuret formation
B. High corrosion rate
C. Increased cost of equipment
D. All A., B. & C.
Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas ?
A. Water
B. Naphtha
C. Tar
D. Coal/coke oven gas
Which is the best fertiliser for paddy ?
A. Ammonium sulphate
B. Nitro-phosphate
C. Superphosphate
D. Potassium nitrate
Reaction of Cresylic acid with _____________ produces Tricresyl phosphate?
A. Phosphorous pentoxide
B. Phosphorous oxychloride
C. Ammonium phosphate
D. Calcium phosphate
_____________ is the undesirable by-product produced in the manufacture of urea ?
A. Ammonium carbonate
B. Biuret
C. Carbon dioxide
D. Ammonium carbamate
A fertiliser contains 82% N2. It could be_____________________?
A. Urea
B. Liquid NH3
C. Ammonium nitrate
D. None of these
_____________ is not a fertiliser?
A. Calcium ammonium nitrate
B. Ferrous sulphate
C. Liquid ammonia
D. Ammonium sulphate
Raw materials for nitric acid manufacture are___________________?
A. Hydrogen peroxide, air and water
B. Anhydrous ammonia and air
C. Anhydrous ammonia, air and water
D. Wet ammonia, air and water
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