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MCQs 1: Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an _______________________ reaction?

Catalytic Endothermic Exothermic Autocatalytic
Answer Explanation

MCQs 2: Triple superphosphate is chemically represented as_____________________?

CaF2.3Ca3(PO4)2 3Ca3(PO4)2 Ca(PO3)2 Ca(H2PO4)2
Answer Explanation

MCQs 3: Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the _______________ process?

Haber’s Stengel Le-chatelier’s Du-pont’s
Answer Explanation

MCQs 4: 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
Answer Explanation

MCQs 5: 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___________________?

Rate of reaction is very low Very high pressure is required resulting in costly pressure vessel Space velocity of gas is very low resulting in decreased conversion None of these
Answer Explanation

MCQs 6: Fertiliser value of a nitrogenous fertiliser is expressed in terms of its ______________ content?

N2 KNO3 NO2 NHO3
Answer Explanation

MCQs 7: Base suspension fertiliser essentially contains___________________?

13% N2 and 43% P2O5 43% N2 and 13% P2O5 43% N2 and 13% K2O 43% K2O and 43% P2O5
Answer Explanation

MCQs 8: The main constituent of rock phosphate is _____________________?

Mono-calcium phosphate Di-calcium phosphate Fluorspar None of these
Answer Explanation

MCQs 9: Potassic fertilisers do not promote the development of ______________________?

Stems & leaves during early stage of plant growth Starches of potatoes & grains Sugar of fruits & vegetables Fibrous materials of plants
Answer Explanation

MCQs 10: Heating of ortho-phosphoric acid to 250°C produces___________________?

Meta-phosphoric acid Pyrophosphoric acid No change in it None of these
Answer Explanation

MCQs 11: Chemical formula of biuret is_________________?

NH2.CO.NH2 NH3.COO.NH3 NH2CONHCONH2 NH4COONH2
Answer Explanation

MCQs 12: Ammonia synthesis gas is produced from natural gas by___________________?

Thermal cracking Steam reforming Partial oxidation Hydrogenation
Answer Explanation

MCQs 13: In an ammonia plant, the purge off is essential to___________________?

Maintain inert gas concentration within a limit Remove excess poisonous gases Maintain H2 : N2 ratio at 3 :1 Remove uncondensed ammonia vapour
Answer Explanation

MCQs 14: Superphosphate is manufactured by reacting phosphate rock with_____________________?

Acetic acid Sulphuric acid Aluminium chloride None of these
Answer Explanation

MCQs 15: Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?

Calcium nitrate Calcium ammonium nitrate (CAN) Urea Ammonium sulphate
Answer Explanation

MCQs 16: In _____________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed?

Fauser-Montecatini Claude Uhde Kellogg
Answer Explanation

MCQs 17: Vetrocoke solution is_________________?

A mixture of K2CO3 and As2O3 K2SO4 A mixture of Na2CO3 and As2O3 Na2SO4
Answer Explanation

MCQs 18: Ammonia synthesis gas is produced from fuel oil by _________________?

Steam reforming Hydro-cracking Partial oxidation Hydrogenation
Answer Explanation

MCQs 19: Reaction of calcium Fluorapatite with sulphuric acid produces ___________________?

Ortho-phosphoric acid Simple superphosphate Triple superphosphate Red phosphorous
Answer Explanation

MCQs 20: Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching ?

Isopropyl alcohol Butyl alcohol Toluene Hexane
Answer Explanation

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