- (A) Catalytic
- (B) Exothermic
- (C) Endothermic
- (D) Reversible
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- (A) 250-300
- (B) 500-750
- (C) 950-1050
- (D) 1400-1450
- (A) Dicalcium phosphate
- (B) Superphosphate
- (C) Triple superphosphate
- (D) None of these
- (A) Superphosphate
- (B) Triple superphosphate
- (C) Meta-phosphoric acid
- (D) Monoammonium phosphate
- (A) Corrosive in nature
- (B) Toxic and harmful to some crops
- (C) Helpful in decomposition of urea
- (D) Explosive in nature
- (A) Nature of soil
- (B) Type of crop
- (C) pH of soil
- (D) None of these
- (A) Osmotic pressure of the soil water becomes less than that of the plant sap
- (B) Soil becomes too alkaline
- (C) Osmotic pressure of the soil water becomes higher than that of the plant sap
- (D) Soil becomes too acidic
- (A) Increases the yield of urea
- (B) Adversely affects the yield of urea
- (C) Reduces the evaporator load by diluting the urea solution
- (D) Does not affect the yield of urea
- (A) Use coal for heating purpose
- (B) Gasify coal to get hydrogen from coal gas
- (C) Use coal as filler in fertiliser
- (D) Use coal as conditioner in fertiliser
- (A) 120°C and 300 atm
- (B) 190°C and 200 atm
- (C) 400°C and 550 atm
- (D) 200°C and 10 atm
