0% 0 Fertilizer Technology Quiz 4 1 / 43 The optimum size of the ammonia plant is _______ tons/day? 1000 100 10 1000 2 / 43 Which is the most suitable fertiliser for paddy ? Ammonium nitrate CAN Ammonium sulphate Superphosphate 3 / 43 The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is ______ fertiliser? Potassic Phosphatic None of these Nitrogenous 4 / 43 Which nutrient in fertiliser makes the plant stems stronger and increases branching ? Nitrogen Phosphorous Potassium Calcium 5 / 43 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 ? Hexane Butyl alcohol Toluene Isopropyl alcohol 6 / 43 Triple superphosphate is chemically represented as_______? Ca(PO3)2 3Ca3(PO4)2 CaF2.3Ca3(PO4)2 Ca(H2PO4)2 7 / 43 The main constituent of rock phosphate is _______? Mono-calcium phosphate None of these Di-calcium phosphate Fluorspar 8 / 43 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_____? Is toxic and highly corrosive Is in short supply Vaporises at normal temperature Has a pungent smell 9 / 43 Two gas based fertiliser plants are located in India are__________? Gujarat and Madhya Pradesh Maharashtra and Orissa Jharkhand and Chhattisgarh Maharashtra and Gujarat 10 / 43 Triple superphosphate is made by reacting phosphate rock with ______ acid? Nitric Sulphuric Hydrochloric Phosphoric 11 / 43 Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the ________ process? Du-pont?s Le-chatelier?s Stengel Haber?s 12 / 43 Urea is represented as________? NH.CO2.NH NH2.CO.NH2 NH3CO.CH3 NH3.CO2.NH3 13 / 43 Which of the following does not come under the category of ?secondary nutrient? for plant growth ? Sulphur Magnesium Calcium Oxygen 14 / 43 The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about _____ percent? 95 60 100 30 15 / 43 Which of the following is not a measure component necessarily to be present in fertilisers ? Nitrogen Phosphorous Potassium Sulphur 16 / 43 Which of the following fertilisers contains the least percentage of nitrogen ? Liquid ammonia Ammonium sulphate Urea Ammonium phosphate 17 / 43 Which is the best fertiliser for paddy ? Nitro-phosphate Potassium nitrate Superphosphate Ammonium sulphate 18 / 43 Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ? Urea Calcium cyanamide CAN Ammonium sulphate 19 / 43 Urea (a nitrogenous fertiliser) is produced from carbon dioxide and___________? Ammonia Nitric oxide Ammonium nitrate Nitric acid 20 / 43 Vetrocoke solution is__________? K2SO4 A mixture of Na2CO3 and As2O3 Na2SO4 A mixture of K2CO3 and As2O3 21 / 43 Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth ? None of these Potassic fertiliser Phosphatic fertiliser Nitrogenous fertiliser 22 / 43 Which of the following gasifiers can be attached to coal based fertiliser plants ? Gasifier working at 20 atm Kopper-Totzek gasifier Lurgi (high pressure) gasifier Gasifier working at 40 atm 23 / 43 Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ? Potassic fertiliser Phosphatic fertilisers Nitrogenous fertilisers None of these 24 / 43 Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant ? Ammonium sulphate Urea Superphosphate CAN 25 / 43 Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition ________? Cryogenic removal of H2 from coke oven gas Natural gas cracking Electrolysis of water Steam reforming of naphtha 26 / 43 Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of _____ this is normally not done? Increased cost of equipment High corrosion rate Increased biuret formation All A., B. & C. 27 / 43 Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas ? Water Naphtha Tar Coal/coke oven gas 28 / 43 The essential ingredient of all the synthesis gas is_____? O2 H2 N2 CO2 29 / 43 Which of the following is not a mixed fertiliser ? Calcium ammonium nitrate (CAN) Nitrophosphate Ammonium phosphate None of these 30 / 43 Urea is a better fertilizer than ammonium sulphate, because___________? It is not poisonous It is cheaper It is easy to manufacture Nitrogen content is higher 31 / 43 The composition of fresh feed to the high temperature, high pressure urea autoclave is________? Liquid ammonia and excess compressed CO2 Compressed ammonia gas and excess compressed CO2 Excess liquid ammonia and liquefied CO2 Excess liquid ammonia and compressed CO2 gas 32 / 43 With increases in pressure, the conversion of Ammonium carbamate into urea_____? Decreases Remains unaltered Can either increase or decrease depends on biuret content Increases 33 / 43 Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber?s process ? High pressure, low reactants concentration, high temperature High pressure, high reactants concentration, low temperature High pressure, low reactants concentration, low temperature Low pressure, high reactants concentration, low temperature 34 / 43 Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of______ percent concentration? 25-28 75-80 52-54 > 98 35 / 43 Yield of elemental phosphorous from rock phosphate is about ______ percent? 15-25 2-Jan 40-45 60-65 36 / 43 Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ? Ammonium sulphate Calcium ammonium nitrate (CAN) Urea Calcium nitrate 37 / 43 Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in _______ of the catalyst ? Increasing the effectiveness All A, B & C Stabilisation Improving the strength & heat resistance 38 / 43 Which is a catalyst promoter used in catalytic ammonia synthesis reaction ? Al2O3 MnO K2O Cr2O3 39 / 43 Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis ? Steam reforming of naphtha H2 separation from coke oven gas Electrolysis of water Cracking of natural gas 40 / 43 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_____? Very high pressure is required resulting in costly pressure vessel Space velocity of gas is very low resulting in decreased conversion None of these Rate of reaction is very low 41 / 43 Which of the following fertilizers is used as a cattle feed ? Urea Ammonium sulphate Calcium ammonium nitrate Superphosphate 42 / 43 Tricresyl phosphate is chemically represented as_____? Ca10(PO4)3F6 NH4H2PO4 (NH4)2HPO4 (CH3 C6 H4)3 PO4 43 / 43 Urea is formed only______? At very low pressure (vacuum) At very high temperature In liquid phase In vapour phase Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp PrevFertilizer Technology Quiz 3 Fluid Mechanics for Chemical Quiz 1Next
