151. Catalytic ammonia synthesis reaction as in Haber’s process is
Endothermic
Exothermic
Irreversible
None of these
✅ The correct answer is option B.
Fertilizer Technology MCQs
152. Reaction of nitric acid and sulphuric acid with phosphate rock produces
Nitrophosphate
Diammonium phosphate
Tricresyl phosphate
Tributyl phosphate
✅ The correct answer is option A.
153. Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
Exothermic
Endothermic
Autocatalytic
None of these
✅ The correct answer is option A.
154. Formation of ammonium carbamate by reaction of NH₃ with CO₂ is a/an __________ reaction.
Catalytic
Exothermic
Endothermic
Reversible
✅ The correct answer is option B.
155. Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Catalytic
Endothermic
Exothermic
Autocatalytic
✅ The correct answer is option C.
156. 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.
157. Reaction of dilute sulphuric acid with phosphate rock produces
Phosphoric acid
Superphosphate
Triple superphosphate
Gypsum
✅ The correct answer is option A.
158. 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.
159. Reaction of cresylic acid with __________ produces tricresyl phosphate.
Phosphorous pentoxide
Phosphorous oxychloride
Ammonium phosphate
Calcium phosphate
✅ The correct answer is option B.
160. 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.