- (A) Increases biuret formation
- (B) Decreases biuret formation
- (C) Is undesirable
- (D) Does not effect biuret formation
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- (A) Phosphoric acid
- (B) Superphosphate
- (C) Phosphorous
- (D) Triple superphosphate
- (A) 60
- (B) 30
- (C) 95
- (D) 100
- (A) Increased biuret formation
- (B) High corrosion rate
- (C) Increased cost of equipment
- (D) All
- (A) Nitrogen
- (B) Potassium
- (C) Phosphorous
- (D) Sulphur
- (A) By fractionation of liquefied air
- (B) By dissociating oxides of nitrogen
- (C) From coal gas (coke oven gas)
- (D) From producer gas
- (A) P2O3
- (B) PCl5
- (C) P2O5
- (D) H3PO4
- (A) Stabilisation
- (B) Increasing the effectiveness
- (C) Improving the strength & heat resistance
- (D) All A, B & C
- (A) Fuel
- (B) H2
- (C) N2
- (D) O2
- (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
