Can use only high grade phosphate rock
Is used less frequently
Produces a valuable by-product called gypsum
Is weak acid process
✅ The correct answer is option B.
Chemical Engineering MCQs
I argest capacity nitrogenous fertiliser plants (2700 tons of NH₃ per day) (2 Nos) in India are located at
Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)
Talchar (Orissa) and Ramagundam (A.P.) both under FCI
Korba (M.P.) and Talchar (Orissa) both under FCI
Haldia (W.B) and Namrup (Assam) both under HFC
✅ The correct answer is option A.
Ammonium nitrate is
Having about 40% N₂
Not hygroscopic
Not prone to explosive thermal decomposition
Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer
✅ The correct answer is option D.
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
Reversible
Catalytic
Exothermic
Endothermic
✅ The correct answer is option D.
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?
Nitrogenous fertilisers
Phosphatic fertilisers
Potassic fertiliser
None of these
✅ The correct answer is option C.
Which of the following fertilisers contains the least percentage of nitrogen?
Liquid ammonia
Urea
Ammonium phosphate
Ammonium sulphate
✅ The correct answer is option C.
Reaction of cresylic acid with __________ produces tricresyl phosphate.
Phosphorous pentoxide
Phosphorous oxychloride
Ammonium phosphate
Calcium phosphate
✅ The correct answer is option B.
Reaction of anhydrous liquid ammonia with orthophosphoric acid produces
Ammonium phosphate
Superphosphate
Triple superphosphate
None of these
✅ The correct answer is option A.
Fauser Monte Catini converter is used for
Ammonia synthesis (e.g. at FCI Sindri)
Methanation of CO and CO₂
Shift conversion (i.e. CO to CO₂)
None of these
✅ The correct answer is option A.
Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.
5
20
50
65
✅ The correct answer is option B.