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Chemical Engineering - Fertiliser Technology

Exercise : Fertiliser Technology - Section 3
46.
Yield of elemental phosphorous from rock phosphate is about __________ percent.
1-2
15-25
40-45
60-65
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
decreasing the pressure.
decreasing the temperature.
increasing the temperature.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
exothermic
endothermic
autocatalytic
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Pick out the wrong statement.
Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty.
Large excess use of nitrogenous fertiliser in land causes the problem of diarrhoea and cyanosis.
Application of large excess of potassic fertiliser in soil increases the valuable carotene in fruits and vegetables.
Cereal crops grown on alkaline soil absorb higher amount of flourides thereby spreading flourosis.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3
HNO3 & limestone
CO2 & H2SO4
HNO3 & NH4Cl
CO2 & KNO3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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