Fertiliser Technology — Part 2 MCQs with Explanations

K2O is the correct answer to “Which is a catalyst promoter used in catalytic ammonia synthesis reaction”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Rate of reaction is very low is the correct answer to “Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Reduced iron oxide is the correct answer to “Catalyst used in Haber's process for ammonia production is”. This question is standard in competitive examination syllabi for Fertiliser Technology.

NH2CONHCONH2 is the correct answer to “Chemical formula of biuret is”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Triple superphosphate is the correct answer to “Action of phosphoric acid on rock phosphate produces”. This question is standard in competitive examination syllabi for Fertiliser Technology.

A complex fertiliser is the correct answer to “Calcium ammonium nitrate (CAN) is”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Kopper-Totzek gasifier is the correct answer to “Which of the following gasifiers can be attached to coal based fertiliser plants”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Superphosphate is the correct answer to “A phosphatic fertiliser contains 16% P 2 O 5 . It could be”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Vaporises at normal temperature is the correct answer to “Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Exothermic is the correct answer to “Catalytic ammonia synthesis reaction as in Haber's process is”. This question is standard in competitive examination syllabi for Fertiliser Technology.

High pressure is the correct answer to “In ammonia synthesis (N 2 + 3H 2 = 2NH 3 ), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Electrolysis of water is the correct answer to “Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition”. This question is standard in competitive examination syllabi for Fertiliser Technology.

V2O5 is the correct answer to “Promoter used in NH 3 synthesis catalyst is”. This question is standard in competitive examination syllabi for Fertiliser Technology.

52 - 54 is the correct answer to “Triple superphosphate which contains about 46% P 2 O 5 is produced by the reaction of phosphate rock with ortho phosphoric acid of ____ percent concentration.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Phosphoric acid is the correct answer to “Reaction of dilute sulphuric acid with phosphate rock produces”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Triple superphosphate is the correct answer to “Reaction of orthophosphoric acid with phosphate rock produces”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Nitrophosphate is the correct answer to “Reaction of nitric acid and sulphuric acid with phosphate rock produces”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Co-Mo is the correct answer to “Catalyst used in desulphurisation of naphtha is”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Electrolysis of water is the correct answer to “Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis”. This question is standard in competitive examination syllabi for Fertiliser Technology.

25 is the correct answer to “Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Ammonia synthesis (e.g. at FCI Sindri) is the correct answer to “Fauser Monte Catini converter is used for”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Exothermic is the correct answer to “Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

42 - 50 is the correct answer to “P 2 O 5 content in triple superphosphate is about __________ percent.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

15-25 is the correct answer to “Yield of elemental phosphorous from rock phosphate is about __________ percent.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

15 - 20 is the correct answer to “P 2 O 5 content in superphosphate is about __________ percent.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

CaF2.3Ca3(PO4)2 is the correct answer to “Triple superphosphate is chemically represented as”. This question is standard in competitive examination syllabi for Fertiliser Technology.

(CH3C6H4)3 PO4 is the correct answer to “Tricresyl phosphate is chemically represented as”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Orthophosphoric acid is the correct answer to “Reaction of phosphate rock with 98% H 2 SO 4 produces”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Simple superphosphate is the correct answer to “Reaction of calcium fluorapatite with sulphuric acid produces”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Biuret formation is the correct answer to “Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Nitrogenous is the correct answer to “Urea is a __________ fertiliser.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Nitrogeneous fertiliser is the correct answer to “Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Biuret is the correct answer to “__________ is the undesirable by-product produced in the manufacture of urea.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Produces lower purity acid is the correct answer to “In the manufacture of H 3 PO 4 (ortho); strong H 2 SO 4 leaching wet process as compared to electric furnace process”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Mixed is the correct answer to “NPK fertiliser is a __________ fertiliser.”. This question is standard in competitive examination syllabi for Fertiliser Technology.

CO2, H2 and N2 is the correct answer to “Raw materials for urea production are”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Iron is the correct answer to “Catalyst used in the manufacture of NH 3 by Haber's process is finely divided”. This question is standard in competitive examination syllabi for Fertiliser Technology.

13% N2 and 43% P2O5 is the correct answer to “Base suspension fertiliser essentially contains”. This question is standard in competitive examination syllabi for Fertiliser Technology.

450 atm, 550°C is the correct answer to “Temperature and pressure in ammonia converter is”. This question is standard in competitive examination syllabi for Fertiliser Technology.

Decreases biuret formation is the correct answer to “Lower temperature and large excess of ammonia in urea melt”. This question is standard in competitive examination syllabi for Fertiliser Technology.