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.Management Sciences
A. Reaction of NH3 with HNO3 to produce (NH4)2NO3 is endothermic
B. With increase in NH3/CO2 ratio, urea yield decreases for a given temperature, pressure and
total feed rate
C. Biuret (an intermediate during urea manufacture) is toxic to seeds and animals
D. Both B. and C.
Related Mcqs:
- Nitric acid is produced on commercial scale in a fertiliser plant by___________________?
- A. Oxidation of ammonia B. CaNO3 + H2SO4 reaction C. Passing air through high voltage electric arc D. None of these...
- Reaction of Cresylic acid with _____________ produces Tricresyl phosphate?
- A. Phosphorous pentoxide B. Phosphorous oxychloride C. Ammonium phosphate D. Calcium phosphate...
- P2O5 content in superphosphate is about _____________ percent?
- A. 30-35 B. 15-20 C. 65-70 D. 85-90...
- Action of phosphoric acid on rock phosphate produces_________________?
- A. Superphosphate B. Triple superphosphate C. Nitrophosphate D. Diammonium phosphate...
- In an ammonia plant, the purge off is essential to___________________?
- A. Maintain inert gas concentration within a limit B. Remove excess poisonous gases C. Maintain H2 : N2 ratio at 3 :1 D. Remove uncondensed ammonia vapour...
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