A. Of the better CaO/SiO2 balance for slag formation
B. CaO content is less
C. It is cheap
D. It produces low cost product
Correct Answer: Of the better CaO/SiO2 balance for slag formation ✔
Last Updated: March 11, 2019
Related MCQs
- Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by__________?
- Reaction of Cresylic acid with __________ produces Tricresyl phosphate?
- Phosphorus vapour comprises of __________?
- __________ is the most suitable fertiliser for paddy?
- A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous?
- Urea is formed only__________?
- Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis ?
- Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium__________?
- Montecatini process is used for the manufacture of__________?
- Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil?
- Lower temperature and large excess of ammonia in urea melt__________?
- Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of__________?
- The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent?
- Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done?
- Which of the following is not a measure component necessarily to be present in fertilisers ?
- Fertiliser plants get their N2 requirements __________?
- Maximum nitrogen percentage is in__________?
- An increase in the NH3/CO2 ratio in urea manufacture results in__________?
- Electric furnace method for production of phosphorous uses phosphate rock and __________?
- Urea is a better fertilizer than ammonium sulphate, because__________?
- Conditioners like finely divided peat are added to the fertiliser to__________?
- Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas ?
- Color of nitric acid is light yellow due to the presence of__________?
- Catalyst used in steam reforming of naphtha is__________?
- Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process?
- Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of__________?
- Nitrolime is__________?
- Tricresyl phosphate is chemically represented as__________?
- Ammonium nitrate is__________?
- __________ catalyst is used in the production of urea from CO2 and NH3?
- Triple superphosphate is made by reacting phosphate rock with __________ acid?
- The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser?
- Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ?
- Catalytic ammonia synthesis reaction as in Haber’s process is__________?
- H4P2O7 is the chemical formula of __________ phosphoric acid?
- -10-5 fertilisers mean that they contain__________?
- Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces__________?
- In ammonia synthesis (N2 + 3H2 = 2NH3), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at__________?
- Nitric acid is produced on commercial scale in a fertiliser plant by__________?
- With increases in pressure, the conversion of Ammonium carbamate into urea__________?
- Nitrogen content of urea is about __________ percent ?
- Nitrogen content of a nitrogenous fertiliser is 35%. It could be__________?
- Plant tranquillisers__________?
- Raw materials for nitric acid manufacture are__________?