250-300
500-750
950-1050
1400-1450
✅ The correct answer is option D.
Chemical Engineering MCQs
Raw materials for urea production are
CO₂ and N₂
CO₂, H₂ and N₂
NH₃ and CO
HNO₃ and CaCO₃
✅ The correct answer is option B.
Temperature and pressure in ammonia converter is
200 atm, 1000°C
450 atm, 200°C
450 atm, 550°C
450 atm, 1000°C
✅ The correct answer is option C.
Low grade coal is __________ to produce ammonia synthesis gas.
Hydrogenated
Liquefied
Gasified
Dehydrogenated
✅ The correct answer is option C.
Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
Adsorption on palladium
Cryogenic operations (low temperature cooling)
Absorption (using ethanolamine or pyragalloll solution)
None of these
✅ The correct answer is option B.
During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH₃ to NO is about __________ percent.
38
68
82
98
✅ The correct answer is option D.
Lower temperature and large excess of ammonia in urea melt
Increases biuret formation
Decreases biuret formation
Is undersirable
Does not effect biuret formation
✅ The correct answer is option B.
The essential ingradient of all the synthesis gas is
H₂
O₂
CO₂
N₂
✅ The correct answer is option A.
Naphtha in a fertiliser plant is used as a source of
Fuel
H₂
N₂
O₂
✅ The correct answer is option B.
Fertiliser produced during soda ash manufacture by dual process is ammonium
Chloride
Sulphate
Nitrate
None of these
✅ The correct answer is option A.