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Fertiliser Technology Online Exam Quiz

Important questions about Fertiliser Technology. Fertiliser Technology MCQ questions with answers. Fertiliser Technology exam questions and answers for students and interviews.

Largest capacity nitrogenous fertiliser plants (2700 tons of NH? per day) (2 Nos) in India are located at


A : a. Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat).

B : b. Talchar (Orissa) and Ramagundam (A.P.) both under FCI.

C : c. Korba (M.P.) and Talchar (Orissa) both under FCI.

D : d. Haldia (W.B) and Namrup (Assam) both under HFC.

Multistage operation (as in the case of catalytic oxidation of SO?) is not carried out for NH? synthesis, because of


A : a. comparatively higher pressure drop.

B : b. high cost of the high pressure vessel used for the reactor.

C : c. higher pumping cost.

D : d. chances of entrainment and disturbance of catalyst bed.

In ammonia synthesis (N? + 3H? = 2NH?), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at


A : a. low pressure.

B : b. high pressure.

C : c. very high temperature.

D : d. atmospheric pressure; as the pressure has no effect on conversion.

Conversion achieved in HNO? synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by


A : a. decreasing the pressure.

B : b. decreasing the temperature.

C : c. increasing the temperature.

D : d. none of these.

In the manufacture of H?PO? (ortho), ; strong H?SO? leaching wet process as compared to electric furnace process


A : a. uses lower grade phosphate rock.

B : b. requires lower capital investment in the plant.

C : c. produces lower purity acid.

D : d. is very costly.

Triple superphosphate which contains about 46% P?O? is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.


A : a. 25-28

B : b. 52-54

C : c. 75-80

D : d. > 98

Which of the following solvents is used for the extraction of H?PO? from CaCl? solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching?


A : a. Iso propyl alcohol

B : b. Butyl alcohol

C : c. Toluene

D : d. Hexane

In the manufacture of orthophosphoric acid by strong H?SO? leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable


A : a. CaSO? .1/2H?O and CaSO? crystals

B : b. pyrophosphoric acid

C : c. metaphosphoric acid

D : d. all (a), (b) and (c).

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