Platinum-beryllium
Platinum-rhodium
Cobalt-molybdenum
Platinum-molybdenum
✅ The correct answer is option B.
Chemical Engineering MCQs
Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N₂ & H₂ is high. The presence of promoter along with the catalyst helps in __________ of the catalyst.
Stabilisation
Increasing the effectiveness
Improving the strength & heat resistance
All of the above
✅ The correct answer is option D.
Raw materials for nitric acid manufacture are
Hydrogen peroxide, air and water
Anhydrous ammonia and air
Anhydrous ammonia, air and water
Wet ammonia, air and water
✅ The correct answer is option C.
Maximum stability of white phosphorous is at
Very high pressure
Atmospheric pressure
Room temperature
>600°C
✅ The correct answer is option D.
Vetrocoke solution is
A mixture of K₂CO₃ and As₂O₃
K₂SO₄
A mixture of Na₂CO₃ and As₂O₃
Na₂SO₄
✅ The correct answer is option A.
Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of
Phosphoric acid
Superphosphate
Phosphorous
Triple superphosphate
✅ The correct answer is option C.
Rock phosphate constitutes mainly of
Fluorapatite
Di-calcium phosphate
Mono-calcium phosphate
Di-ammonium phosphate
✅ The correct answer is option A.
Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at
Rourkela (under SAIL)
Barauni (under HFC)
Nangal (under NFL)
Talchar (under FCI)
✅ The correct answer is option A.
Ammonia synthesis gas is produced from natural gas by
Thermal cracking
Steam reforming
Partial oxidation
Hydrogenation
✅ The correct answer is option B.
Catalyst used in the manufacture of NH₃ by Haber’s process is finely divided
Nickel
Iron
Vanadium pentoxide
Alumina
✅ The correct answer is option B.