Dicalcium phosphate
Superphosphate
Triple superphosphate
None of these
✅ The correct answer is option B.
Chemical Engineering MCQs
Action of phosphoric acid on rock phosphate produces
Superphosphate
Triple superphosphate
Nitrophosphate
Diammonium phosphate
✅ The correct answer is option B.
Reaction of dilute sulphuric acid with phosphate rock produces
Phosphoric acid
Superphosphate
Triple superphosphate
Gypsum
✅ The correct answer is option A.
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
25-28
52-54
75-80
> 98
✅ The correct answer is option B.
Calcium ammonium nitrate (CAN) is
A mixed fertiliser
A straight fertiliser
A complex fertiliser
Not a fertiliser ; it is an explosive
✅ The correct answer is option C.
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
Exothermic
Endothermic
Autocatalytic
None of these
✅ The correct answer is option A.
Conditioners like finely divided peat are added to the fertiliser to
Counteract burning
Avoid caking & hardening
Produce bulk
Increase its solubility
✅ The correct answer is option B.
Fertiliser plants get their N₂ requirements
By fractionation of liquified air
By dissociating oxides of nitrogen
From coal gas (coke oven gas)
From producer gas
✅ The correct answer is option A.
Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
10
25
50
80
✅ The correct answer is option B.
Catalyst used in desulphurisation of naphtha is
Co-Mo
Pt-Rh
Silica gel
Nickel
✅ The correct answer is option A.